马来酸曲米帕明

分离糖类,醇类,有机酸类常规的尺寸250mm*4.6mm和300mm*8.0mm其他特殊规格的尺寸可以按照客户要求定做 符合美国药典L-17 氢型磺化交联苯乙烯二乙烯基苯共聚物强阳离子交换树脂 Reprogel H+ 300*8mm 9um ,适合分离各种有机酸,苹果酸,富马酸,马来酸,甲酸,乙酸,乳酸,草酸,柠檬酸等,红酒中的各种有机酸分析,利巴韦林专用分析色谱柱.葡甲胺分析色谱柱

测量气体 化学分子式型号测量范围（ppm）颜色的变化有效期（年）试管数量/盒变化前变化后马来酐C4H2O3216S?0.2—10浅粉红色黄色310

产品信息：德尔格检测管系统德尔格检测管是装满化学试剂的玻璃管，此化学试剂与特定的化学物质或相关化学物质发生反应。用德尔格accuro气泵抽取定量标准气样到检测管中，如果检测管中的试剂改变颜色，颜色变化的长度通常表明被测物质的浓度。德尔格检测管系统是全世界气体检测领域公认的、且应用最广泛的检测形式。**表示采样次数在20次以上的检测管，建议选配x-act 5000电动采样泵。订货信息：铬酸Chromic Acid 0.1/a (9) 检测管检测管名称测量范围订货号铬酸Chromic Acid 0.1/a (9)0.1 to 0.5 mg/m36728681

迈尔斯通Milestone PFA酸缸清洗桶透明材料：PFA 进口四氟尺寸：320mm*220mm*253mm容量：16L材料耐受温度：-200℃-260℃应用行业：实验室耗材清洗，如溶样罐、微波消解罐、试剂瓶、坩埚、烧杯等等的清洗迈尔斯通Milestone PFA酸缸清洗桶透明特点：一体成型不渗漏，耐强酸强碱，金属空白值小于0.01PPB，透明度好，平滑的表面适用于痕量、超痕量分析、同位素分析等实验室，是洁净的实验分析器皿

产品概述酸纯化系统采用亚沸腾蒸馏模式，保持腔体内液体温度低于沸点温度，蒸发冷凝，制备高纯酸。采用进口高纯PFA材料，本底低，表面光洁，无吸附。腔体透明可视，便于观察。宝塔型冷凝设计，无须水冷，产酸高效。可满足ICP、痕量、超痕量分析用酸需求。 仪器参数电压220V±10% 50/60Hz功率400W电源线长度2m,纯化器到控制盒1.5m,控制盒到电源尺寸30cm*33cm*40cm重量-容积1000ml适用范围HNO3、HCL、HF包装清单

北京绿百草科技供应BENSON有机酸分析柱BP-OA关键词：BENSON，有机酸分析柱，BP-OA，2030-0北京绿百草科技专业提供BENSON有机酸分析柱BP-OA，货号2030-0，规格250 x 4.6 mm。有机酸分析色谱柱&mdash Benson BP-OA，填料符合USP L17，8%交联度的磺化苯乙烯-二乙烯基苯树脂键合氢离子。BP-OAPH值适用范围是0-14，可用水或稀酸做提洗液。BP-OA柱子用于确定弱有机和无机酸阴离子，有机酸阴离子包括乙酸、甲酸、草酸、马来酸、苹果酸、琥珀酸、柠檬酸、酒石酸、富马酸等；无机酸阴离子包括氟化物，碳酸氢盐，硼酸盐，硅酸盐等。需要详细的产品信息 货号 色谱柱 柱尺寸（mm） 2000-0 BP-OA Analytical Column 300 x 7.8 2010-0 BP-OA Analytical Column 250 x 7.8 2020-0 BP-OA Analytical Column 100 x 7.8 2030-0 BP-OA Analytical Column 250 x 4.6 2000-2 BP-OA Guard Column 50 x 4.6

20ml EPA VOA透明样品瓶 品牌：ALWSCI满口容量:20.0ml规格：27.5*57mm材质：1级水解玻璃制成颜色：棕色，透明包装：100个/盒，PP塑托盒包装，10盒/箱。 产品介绍：1、完美匹配，适用于安捷伦、WATERS等各种型号自动进样器。2、样品瓶有透明、棕色写供选择，3、独特的瓶口设计保证一致的密封性，高精度的加工工艺，严格的质量控制，保证批与批之间的尺寸的一致性4、10万级的无尘净化车间，保证产品的洁净度。。5、多种垫片可以选择，本膜白胶垫、白膜白胶等等，均可定制。6、瓶口有斜角边设计，保证瓶口与垫片之前能更好的密封。EPA样品瓶为标准的24-400螺纹口样品瓶，可用于环境样品或各种化学物质的装样和保存；棕色样品瓶适合于对光不稳定样品的色谱分析和样品保存；隔垫以聚四氟乙烯和优质硅胶作为原材料，保证了该垫片具有无毒性，并有效防止穿刺掉屑，符合色谱分析要求；隔垫的聚四氟乙烯层接触试剂，具有良好的化学惰性，能耐酸、耐碱、耐温、抗粘，硅胶层弹性极佳，可保证密封性能；隔垫柔软，可为自动进样器的针头提供良好的保护；严格的生产管理，保证了产品的品质。产品清洁，不用清洗，即可直接使用

40ml EPA VOA透明样品瓶 品牌：ALWSCI满口容量:40.0ml规格：27.5*95mm材质：1级水解玻璃制成颜色：棕色，透明包装：100个/盒，PP塑托盒包装，10盒/箱。 产品介绍：1、完美匹配，适用于安捷伦、WATERS等各种型号自动进样器。2、样品瓶有透明、棕色写供选择，3、独特的瓶口设计保证一致的密封性，高精度的加工工艺，严格的质量控制，保证批与批之间的尺寸的一致性4、10万级的无尘净化车间，保证产品的洁净度。。5、多种垫片可以选择，本膜白胶垫、白膜白胶等等，均可定制。6、瓶口有斜角边设计，保证瓶口与垫片之前能更好的密封。EPA样品瓶为标准的24-400螺纹口样品瓶，可用于环境样品或各种化学物质的装样和保存；棕色样品瓶适合于对光不稳定样品的色谱分析和样品保存；隔垫以聚四氟乙烯和优质硅胶作为原材料，保证了该垫片具有无毒性，并有效防止穿刺掉屑，符合色谱分析要求；隔垫的聚四氟乙烯层接触试剂，具有良好的化学惰性，能耐酸、耐碱、耐温、抗粘，硅胶层弹性极佳，可保证密封性能；隔垫柔软，可为自动进样器的针头提供良好的保护；严格的生产管理，保证了产品的品质。产品清洁，不用清洗，即可直接使用

DNAPac PA200 寡核苷酸柱使用 Thermo Scientific DNAPac PA200 寡核苷酸柱，可实现对合成型寡核苷酸进行高分离度分析和纯化所需的强阴离子交换。描述可对寡核苷酸进行 n、n-1 分离解析次级结构的寡核苷酸分析硫代磷酸酯纯度通过调节洗脱液 pH、盐和溶剂来进行选择性控制可解析具有不同于正常 SSRNA 的异常链 (2' – 5' ) 的 RNADNAPac PA200 寡核苷酸柱订货信息：RSLC 分析柱DNAPac PA200 RS, 4μm,Fast Analytical Column (4.6 x 50 mm)082508DNAPac PA200 RS, 4μm, Analytical (4.6 x 150 mm)082509DNAPac PA200 RS, 4μm,High Resolution Analytical Column (4.6 x 250 mm)082510分析柱DNAPac PA200, 8μm, Analytical (2 x 250 mm)063425DNAPac PA200, 8μm, Analytical Column (4 x 250 mm)063000DNAPac PA200, 8μm, Analytical (9 x 250 mm)063421DNAPac PA200, 8μm, Semi-Preparative (22 x 250 mm)SP6734保护柱DNAPac PA200, 8μm, Guard (2 x 50 mm)063423DNAPac PA200, 8μm, Guard Column (4 x 50 mm)062998DNAPac PA200, 8μm, Guard (9 x 50 mm)063419DNAPac PA200, 8μm, Guard (22 x 50 mm)SP6731Ultrahigh-Resolution Separations of OligonucleotidesThe Thermo Scientific™ DNAPac™ PA200 and PA200 RS are strong anion-exchange columns developed to provide unsurpassed high-resolution analysis and purification of synthetic oligonucleotides. Both supports are designed to resolve full length from n–1, n+1, and other failure sequences not possible with other columns. Retention times and selectivity can be controlled by choice of salt, pH, and solvent. Therefore, the separation can be tailored to the requirements of many different oligonucleotide analysis challenges. Achieve n, n-1 resolution for oligonucleotides.Resolve oligonuleotide linkage and stereoisomers.Assay phosphorothioate purity.Attain selectivity control with eluent pH, salt, and solvent.Resolve RNA with aberrant (2’–5’) links from normal SSRNA.The DNAPac PA200 is packed with a pellicular anion-exchange resin composed of an 8 μm diameter nonporous polymeric substrate to which quaternary amine-functionalized Thermo Scientific™ Dionex™ MicroBeads™ are bound. The rapid mass transport characteristics of this resin result in high-resolution oligonucleotide separations. The DNAPac PA200 RS is smaller, with 4 μm diameter resin for bio-UHPLC separations. These rapid separation (RS) columns are designed for use with the Thermo Scientific™ Dionex™ UltiMate™ 3000 BioRS system, with an operational backpressure limit of 10,000 psi. Columns packed with smaller particles improve resolution and offer better performance.The DNAPac PA200 and PA 200 RS can be operated under denaturing conditions, such as high temperature (up to 85 °C), high-pH eluents (up to pH 12.5), or by the inclusion of chaotropic agents (such as Urea).These columns offer the highest-quality phase stability over a broad pH range, deliver exceptional resolution, and support high-throughput separations. DNAPac PA200 and PA 200 RS columns support resolution of normal-length oligonucleotides (8- to 30- mer), extended-length oligonucleotides (30- to 70-mer), linear double-stranded DNA, and supercoiled versus nicked/linear DNA.Analytical separations on the DNAPac PA200, 8μm, 4 mm diameter column can be scaled directly to larger diameter columns so preparative methods can be conveniently developed using small samples. Scaling the flow rate and sample size up for the 9 × 250 mm and 22 × 250 mm column yields essentially identical chromatography.Column SpecificationsDNAPac PA 200DNAPac PA 200 RSColumn Chemistry55% crosslinked nonporous polymer with Quaternary amine functionalized latex MicroBeadsParticle Size8 μm4 μmIon Exchange Capacity~ 14 μeq/mL~ 20 μeq/mLpH Range4 to 10 (12.5 with salt, see manual)Pressure Maximum4,000 psi10,000 psiTemperature rangeRecommended operating temperature: Controlled ambient Temperature limit: 85 °CFlow RatesRecommend 0.1 to 1.5 mL/minOrganic Solvent Limit100% acetonitrile or methanol for cleaningTypical EluentsHigh purity water (18 megohm-cm), sodium chloride, sodium perchlorate, buffers, sodium acetate and sodium hydroxide.Detergent CompatibilityCompatible with nonioinic, cationic or zwitterionic detergents.Resolution of oligonucleotides using DNAPac PA200 column (8μm). Separation of oligonucleotides by length using DNAPac PA200 column (8μm). Influence of pH on Oligonucleotide Retention: NaCl Eluent ±20% CH3CN. Improved Stability to Alkaline Conditions: Comparison of Capacity upon Exposure to pH 12.4 at Elevated Temperature. Improved oligonucleotide sensitivity using the 4μm DNAPac PA200 RS column.Fast separation of 46 oligonucleotides using the4μm, DNAPac PA200 RS column. Comparison of 4μm, DNAPac PA200 RS column throughput. Separation of three identical sequence oligonucleotides harboring zero, one, or two 2' ,5' -linkages using the 4μm, DNAPac PA200 RS columns of different lengths. Product Data SheetsDNAPac PA200 Column Data SheetGuidesDNAPac PA200 Analytical Column ManualDNAPac PA200 RS 4μm Columns Quick StartApplicationsAN 21093: Ultra-High-Resolution Separation of Oligonucleotides on Pellicular Anion-Exchange UHPLC ColumnsAN 20996: High-Resolution Separation of Oligonucleotides on a Pellicular Anion-Exchange ColumnAN 1021: Pellicular Anion-Exchange Oligonucleotide Chromatography Coupled with High-Resolution Accurate Mass (HRAM) Mass SpectrometryAN 162: Determination of Nucleotides by Ion Chromatography with UV Absorbance DetectionArticlesHigh-Resolution Nucleic Acid Separations by High-Performance Liquid ChromatographyPostersPerformance Improvements for High Resolution Anion-Exchange Oligonucleotide Separations Using Small Particle SubstratesChromatographic Assessment of Oligonucleotide PurityIdentification of RNA Linkage Isomers by Anion-Exchange Purification with ESI-MS of Automatically-Desalted Phosphodiesterase-II DigestsHigh-Resolution RNA and DNA Analyses by Anion-Exchange Liquid Chromatography-Mass SpectrometryImplementing Novel Technologies in Diagnostic and Therapeutic Oligonucleotide DevelopmentOn-Line Preparation of Anion-Exchange Separated Oligonucleotides for Mass SpectrometryHigh-speed, High-resolution Oligonucleotide Separations UsingSmall Particle Anion-Exchangers

Dionex AminoPac PA1 氨基酸分析柱用途和特点AminoPac PA1柱用于氨基酸的快速分离。特别适用于分析酸性和酸不稳定性氨基酸，以及用阳离子交换分离不完全的氨基酸对。Dionex AminoPac PA1 氨基酸分析柱订货信息：分析柱AminoPac PA1 Analytical Column (4 x 250 mm)037022保护柱AminoPac PA1 Guard Column (4 x 50 mm)037023For Specialized Amino Acid Applications with Postcolumn DerivatizationThe AminoPac® PA1 column is a high-speed, pellicular, strong, anion-exchange column. The PA1 delivers high-efficiency separations as a result of its nonporous-core particle. Its strong anion-exchange characteristics are imparted by agglomerating surface MicroBead™ particles that are functionalized with the quaternary ammonium functional group, resulting in a higher capacity than typically offered by nonporous resins.Resolves phosphorylated and other amino acids by anion-exchange chromatographySeparates acid-labile amino acids under basic pH conditionsSeparates strongly acidic amino acidsRequires OPA or ninhydrin postcolumn derivatizationThe anion-exchange selectivity of the AminoPac PA1 can be used to resolve peaks that cannot be resolved using a cation-exchange column. For example, O-phosphorylated amino acids are resolved and eluted near the end of a hydrolysate chromatogram. Arogenic acid, a precursor to tyrosine and phenylalanine, decomposes under the acidic conditions required for cation-exchange separation or PITC derivatization, but it is stable in alkaline eluents used with AminoPac PA1 column.The PA1 is particularly well suited for acidic and acid-labile amino acids and for amino acid pairs not completely resolved by cation-exchange chromatography. AminoPac PA1 Column for Specialized Amino Acid Applications with Postcolumn Derivatization SpecificationsDimensionsAminoPac PA1 Analytical Column:4 × 250 mmAminoPac PA1 Guard Column:4 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Recommended operating temperatureAmbientTypical operating conditions1.0 mL/min gradientRecommended flow rate: 1.0 mL/minMobile phase compatibilityCompatible with up to 5% common organic solvents.Recommended eluents: hydroxide, borate, and acetate.Resin composition10-μm-diameter, pellicular substrate (2% cross-linked)agglomerated with a 180 nm MicroBead alkyl quaternary ammonium functionalized latex (20% cross-linked).Anion-exchange capacityN/AColumn constructionPEEK with 10-32 threaded ferrule-style end fittings.All components are nonmetallic.Gradient sepration of amino acid hydrolysate. Amino Acids by Anion Exchange Using The AminoPac® PA1 Column. Anion-Exchange Separation of O-Phosphorylated Amino Acids Using the AminoPac® PA1 Column.GuidesAminoPac PA1 Analytical Column Manual

高效液相测定贝敏伪麻片中贝诺酯含量 推荐色谱柱YMC Pack Ph 关键词：贝诺酯，盐酸伪麻黄碱，马来酸氯苯那敏，贝敏伪麻片，苯基柱 贝诺酯含量测定，照高效液相色谱法（附录 V D）测定，用苯基硅烷键合硅胶为填充剂，以甲醇和水为流动相，检测波长为245nm，理论踏板数按照贝诺酯峰计算不低于2000. 盐酸伪麻黄碱与马来酸氯苯那敏测定：照高效液相色谱法（附录 V D）测定，用十八烷基硅胶为填充剂，以乙腈-甲醇-水为流动相，理论踏板数按照氯苯那敏峰计算不低于2000，伪麻黄碱峰与氯苯那敏峰的分离度应符合要求。 需要详细的药典标准请联系北京绿百草：010-51659766. 登录网站获得更多产品信息: www.greenherbs.com.cn

丙酸倍氯米松混悬液分散机，倍氯米松分散机，丙酸氟替卡松雾化吸入用混悬液分散机，进口丙酸倍氯米松混悬液分散机，上海丙酸倍氯米松混悬液分散机生产厂家 混悬液 分散是至少两种互不相溶或者难以相溶且不发生化学反应的物质的混合过程。工业分散的目标是在连续相中实现“令人满意的”精细分布。 当固体颗粒分散到一种液体中时，形成一种悬浮液。当一种液体分散到另一种液体中时，形成一种乳浊液。在一种乳浊液的两个液相间的界面处，表面张力开始发生作用。新表面的产生需要能量。在没有外部影响的情况下，每个液相体系均企图以较少的能量达到乳浊液状态。因此，总是会有产生较小界面的倾向，这阻碍任何乳浊液的形成。 为了实现互不相溶相的分散，必须强力粉碎并混合其粒子。粉碎意味着必须克服表面张力的阻力来形成新表面。分散过程传递所需的能量，并保证两相均质混合。分散的长期稳定性会受到确切粒度分布及乳化剂和稳定剂使用的影响。 现在分散机的应用不仅仅局限于“分散”，由于其独特的剪切作用，对粉粒体在液体中的粉碎撞击终细化到理想的粒径，从而使固体质充分掺混到液体中并形成相对稳定的悬浮液，这种过程也就是“分散”。当然与乳化剂一样，添加了分散剂后，悬浮液的稳定性就能得到增强。当某种固体物质通过一定时间与液体的接触能够被液体彻底溶解，那么经剪切撞击而形成的小颗料将更快地被液体所溶解，因为其比表面积增大了好多倍了。从设备角度分析影响分散乳化效果的因素：1、分散机的结构。分散机一般分为间歇式分散机和管线式分散机，管线式分散机分散效果更好，物料可以充分分散乳化，效率高。IKN高剪切分散机采用的是管线式的分散乳化方式。2、分散机的剪切速率。分散设备核心参数就是剪切速率，一般情况下，剪切速率越高，分散乳化效果越好，当然也需要根据具体物料工艺来定；IKN分散机通过皮带加速，转速达9000rpm，是普通分散机转速的3倍，高转速可达21,000rpm。3、处理时间。物料在腔体里面停留时间越长，相对应的分散乳化效果越好，处理次数越多，一般来说分散乳化效果越好。IKN分散机结构设计采用的是立式分体结构，运行时间短。 4、分散头的加工精度。传统分散乳化机采用单层分散乳化头，加工粗糙，而IKN纳米分散乳化机采用三分散乳化头，间隙更小，精密程度更高，分散乳化效果也会更好。设备的选型要点：1、明确使用设备所需达到的效果和目的2、详细了解并掌握研究物料的性质（包括物理、化学性质）3、根据物料对设备的搅拌机进行选型4、再次确定设备的操作参数及结构设计5、综合考虑设备的成本 上海依肯自主研发生产的分体式三分散乳化机，具有高转速、低能耗、低噪音、高寿命等优势，市场上正常用的分散乳化机由于定转子精度以及机械密封的原因，转速高只能达到2910转，而如此低转速以及跟不上市场上对物料分散乳化均质效果 的高要求。IKN特别研立式分体式分散乳化机解决了此难题，将转速提高到了9000转，外加变频器，高可21000rpm，成功解决了市场需求...更多详情请致电上海依肯机械设备有限公司 销售工程师 徐工 182-0189-1183，公司有样机可以免费实验。丙酸倍氯米松混悬液分散机，倍氯米松分散机，丙酸氟替卡松雾化吸入用混悬液分散机，进口丙酸倍氯米松混悬液分散机，上海丙酸倍氯米松混悬液分散机生产厂家

ACQUITY UPLC 生物分离色谱柱 氨基酸分析专用色谱柱 &bull 氨基酸分析的整体解决方案，专门针对需要精确结果，稳定方法的和高灵敏度的分析需求而设计 &bull 10分钟内可完成近20种氨基酸的分析 &bull 已经证明在蛋白质定性、细胞培养液监控和食品及饲料检测方面性能稳定 氨基酸分析专用色谱柱 产品描述 　 部件号 UPLC AAA应用功能拓展套件 　 176001279 配合标准ACQUITY UPLC系统用于氨基酸分析， 包括AccQ· Tag Ultra试剂包、色谱柱、洗脱液、 应用手册和所需要的配件 　 　 AccQ· Tag Ultra ACQUITY UPLC氨基酸分析方法包 　 176001235 此方法包包括： AccQ· Tag Ultra衍生试剂，可进行250次分析 186003836 AccQ· Tag Ultra色谱柱，2.1× 100mm，1.7µ m 186003837 AccQ· Tag Ultra洗脱液A（浓缩液），950 mL 186003838 AccQ· Tag Ultra洗脱液B，950 mL 186003839 衍生管，4× 72/包 WAT007571 水解氨基酸标样，10× 1 mL安瓿管 WAT088122 全回收样品瓶，100个样品瓶/包，共三包 　 186000384C

盐酸苯海拉明的测定，推荐色谱柱 Cosmosil CN-MS 关键词：盐酸苯海拉明，氰基键合硅胶，中国药典，北京绿百草 2010年中国药典标准：盐酸苯海拉明色谱条件：照高效液相色谱法（附录Ⅴ D）测定，用氰基键合硅胶为填充剂；以乙腈-水-三乙胺为流动相；检测波长为258nm。理论板数按盐酸苯海拉明峰计算不低于5000，盐酸苯海拉明峰与二苯酮峰的分离度应大于2.0. （中国药典二部P725） 需要详细的药典标准请联系北京绿百草：010-51659766. 登录网站获得更多产品信息: www.greenherbs.com.cn

单镜片轻质眼镜，带透明聚碳酸酯镜片。? 防刮/防雾涂层? 模制护眉? 软鼻垫? 软橡胶边撑垫重量：25.5 gEN 166, EN 170 1 FT

寡核苷酸分离技术合成寡核苷酸和DNA片段被应用于迅速发展的应用领域，包括作为主体或杂交探针用于治疗性制剂。沃特世寡核苷酸分离技术(OST：Oligonucleotide Separation Technology)基于BEH杂化颗粒的反相色谱柱，以及Gen-Pak离子交换柱，应对各种高分辨分析与实验室规模分离挑战所需，包括涉及各种DNA和RNA品种。沃特世OST色谱柱装有键合了C 18 的第二代杂化技术BEH颗粒。对去三苯甲基(detritylated，或称脱保护)的合成寡核苷酸样品的分离，基于成熟的离子对反相色谱法。沃特世提供1.7 μm UPLC颗粒或2.5 μm HPLC颗粒，装填以各种不同色谱柱规格，从而灵活满足各种实验室规模分离或分析的不同需求，并能实现异乎寻常的样品分辨率和卓越的色谱柱使用寿命。此外，沃特世的制造和质控测试程序，有助于确保批次之间与柱之间的性能的一致性，而无论应用的难度有多高。1、分离效率相当于或优于PAGE、CGE、或离子交换HPLC方法2、可从去三苯甲基(脱保护)的全长产物中分辨出失败序列3、可放大的柱规格，满足实验室规模的分离需求4、超长的色谱柱使用寿命，降低单次分析或分离成本5、经MassPREP OST标准品质控测试，帮助确保性能稳定对寡核苷酸混合物具有异乎寻常的高分辨率ACQUITY UPLC OST C 18 ，1.7 μm色谱柱(设计专用于ACQUITY UPLC系统)和XBridge OST C 18 ，2.5 μm色谱柱，能完全适用于离子对反相色谱法分析和纯化去三苯甲基寡核苷酸的需求。如图所示(右图)，使用沃特世UPLC技术所进行的分离，具有与毛细管凝胶电泳(CGE)相媲美的组分分辨率，而且分析时间显著缩短。由于使用亚2 μm BEH技术颗粒提高了分辨力，因而有可能对大寡核苷酸序列进行分离(如将N与N-1分开)。此外，使用沃特世OST色谱柱配合质谱联用技术以及对质谱兼容的洗脱剂，有可能对与失败序列的色谱分离开的目标寡核苷酸产物的分子量特征进行定量分析。分离15-60mer去三苯甲基寡脱氧胸苷序列组(Detritylated Oligodeoxythymidine Ladder)分离去三苯甲基寡脱氧胸苷序列组，比较毛细管凝胶电泳(CGE)与离子对反相色谱方法的分离效果纯化单链RNA干扰RNA寡核苷酸的UPLC/MS分析RNA干扰(RNAi)机制的发现现在被广泛用于静默目标基因表达，这推动了对小分子干扰RNA(siRNA)分析的需求。为满足对20-25个核苷酸的小分子干扰RNA(siRNA)进行耐用的、快速的、灵敏的分析的需求，沃特世开发了一个UPLC/MS方法，运用了UPLC OST色谱柱和Synapt HDMS质谱仪。采集准确质量可对5’-截断寡聚体(寡核苷酸合成过程所产生的失败序列)以及其它一些杂质峰进行分配。质谱图中的质量的每个峰均使用MaxEnt 1软件进行去卷积化。图2给出了推测性的5’-端失败产物。对寡核苷酸母体的几乎完整序列均进行了解释。质谱分析还显示除了目标21-mer RNAi序列以外，还存在一个额外的尿苷单核苷酸。对一个21mer的RNA进行LC/MS分析不同离子对试剂对不同寡核苷酸序列分离的影响杰出的柱寿命在这些苛刻的分离条件下，填充以BEH技术颗粒的沃特世OST色谱柱显示出引人注目的柱寿命，同时还具有并保持卓越的分离性能。而在相同的苛刻分离条件下，传统硅胶基质色谱柱的使用寿命显著缩短。分离5-25mer去三甲苯基(脱保护)寡脱氧胸苷序列——进样1000针柱分辨率没有任何变化寡核苷酸分离技术(OST)柱产品一览表产品描述 粒径 孔径 柱规格 部件号ACQUITY UPLC OST C 18 * 1.7 μm 135 2.1 x 50 mm 186003949ACQUITY UPLC OST C 18 * 1.7 μm 135 2.1 x 100 mm 186003950ACQUITY UPLC OST C 18 * 1.7 μm 135 2.1 x 150 mm 186005516ACQUITY UPLC OST C 18 方法验证包** 1.7 μm 135 2.1x 100 mm 186004898ACQUITY UPLC OST C 18 定制柱* 1.7 μm 135 定制 186003951XBridge OST C 18 2.5 μm 135 2.1 x 50 mm 186003952XBridge OST C 18 2.5 μm 135 4.6 x 50 mm 186003953XBridge OST C 18 2.5 μm 135 10 x 50 mm 186003954XBridge OST C 18 方法验证包** 2.5 μm 135 4.6 x 50 mm 186004906XBridge OST C 18 定制柱 2.5 μm 135 定制 186003955* 用于配合沃特世UPLC系统使用**来自于不同批次填料所装填的三根色谱柱可放大的DNA与RNAi分离，良好的产品回收率研究基因静默、或用于基因敲除时，需要高纯度寡核苷酸。XBridge OST C 18 色谱柱，具有极高分辨率，其柱规格设计用于满足实验室规模的分离需求，是纯化去三苯甲基(脱保护)寡核苷酸的首选色谱柱。如下表所示，XBridge OST C 18 色谱柱规格和操作流速的选择，主要取决于合成反应混合物的规模大小。我们建议根据寡核苷酸样品的载量选择适当的色谱柱规格，这样可使组分分辨率最大化，使目标产物与不要的失败序列分离开得到最大回收率。柱规格 大概样品载量** mg*** 流速2.1 x 50 mm 0.04 μmoles 0.2 mg 0.2 mL/min4.6 x 50 mm 0.20 μmoles 1.0 mg 1.0 mL/min10 x 50 mm 1.00 μmoles 4.5 mg 4.5 mL/min19 x 50 mm* 4.00 μmoles 16.0 mg 16.0 mL/min30 x 50 mm* 9.00 μmoles 40.0 mg 40.0 mL/min50 x 50 mm* 25.00 μmoles 110.0 mg 110.0 mL/min* OST订制柱** 所列数值仅为约值，且取决于寡核苷酸的长度、碱基组成、以及所采用的“切取中心”的馏分收集方法。*** 按平均寡核苷酸分子量及合成产率估算将siRNA Duplex与其相关杂质分离开

Dionex DNAPac PA100 寡核苷酸柱Thermo Scientific? Dionex? DNAPac? PA100 寡核苷酸柱的特点是采用强阴离子交换树脂，从而可对合成型和经过修饰的寡核苷酸进行高分辨率分析和纯化。描述 13μm、薄膜型、无孔、聚合物树脂，并带有与季胺官能团键合的 MicroBeads?可对寡核苷酸进行 n、n-1 分离解析次级结构的寡核苷酸与溶剂、高 pH 和高温相容分析基于硫代磷酸酯的临床样品可轻松升级Dionex DNAPac PA100 寡核苷酸柱订货信息：分析柱DNAPac PA-100 Analytical Column (4 x 250 mm)043010DNAPac PA-100 Semi-Preparative Column (9 x 250 mm)043011DNAPac PA-100 Semi-Preparative Column (22 x 250 mm)SP2091FAST-Cartridge, DNAPac PA-100 (2 x 10 mm), Pkg of 150SP4008FAST-Cartridge, DNAPac PA-100 (2 x 10 mm), Pkg of 600SP3229DNA Pac PA-100 Analytical Column (2 x 250 mm)SP3686DNAPac PA-100 Column (22 x 50 mm)SP4513FAST-Cartridge, DNAPac PA-100 (2 x 10 mm), Pkg of 10SP4757保护柱DNAPac PA-100 Guard Column (2 x 50 mm)SP4016DNAPac PA-100 Guard Column (4 x 50 mm)043018For n, n-1 Resolution of Single-Stranded OligonucleotidesThe DNAPac? PA100 is a high-resolution anion-exchange column that provides single-base resolution. It is stable under denaturing conditions, rugged, reliable, and can be readily scaled up. The DNAPac PA100 is a 13 μm pellicular, nonporous polymeric resin with bound quaternary amine-functionalized MicroBeads?. The rapid mass-transport characteristics of this resin result in very high-resolution oligonucleotide separations.Capable of n, n-1 resolution for oligonucleotidesResolves oligonucleotides with secondary structuresCompatible with solvent, high pH, and high temperaturesAnalyzes phosphorothioate-based clinical samplesProvides easy scale-upThe MicroBead resin used in DNAPac columns provides high-resolution separations to ensure maximum peak purity, and makes linear scale-up of your separation easy. For more complex separations, the polymeric properties of the DNAPac PA100 allows great flexibility to select ideal conditions, including high pH, high temperature, or chaotropic agents.Synthetic oligonucleotides can be screened for production yield and failure sequences using the DNAPac PA100. Unit-base resolution of synthetic oligonucleotides to 60 bases and beyond has been demonstrated. The DNAPac PA100 can even be operated under denaturing conditions. Either high temperature (up to 90 °C) or high-pH eluents (up to pH 12.5) can be used to eliminate hydrogen bonding, allowing resolution of problem sequences such as self-complementary sequences or poly-G stretches.Separates RNA / Double-Stranded DNAThe DNAPac PA100 is ideally suited for the purification and analysis of synthetic RNA. Failure sequences are easily separated from the full-length product. Double-stranded DNA, such as plasmids, or restriction fragments are also separated.Analytical separations on the 4 mm diameter column can be scaled directly to larger diameter columns so preparative methods can be conveniently developed using small samples. The loading capacity of the DNAPac PA100 (4 × 250 mm) column is from 1 to 100 μg. Scaling the flow rate and sample size up for the 9 × 250 mm and 22 × 250 mm column yields essentially identical chromatography.DNAPac? PA100 for n, n - 1 Resolution of Single-Stranded Oligonucleotides SpecificationsTemperature range4–90 °CTypical operating conditions2400 psi at 1.0 mL/min (analytical and guard columns)Recommended flow rate: 1.0 mL/minMobile phase compatibilitypH 2–12.5 100% compatible with common organic solvents.Ionic form eluents: chloride, acetate, or bromide in lithium, sodium, or ammonium forms.Resin composition13 μm-diameter nonporous substrate (55% cross-linking) agglomerated with a 100 nm MicroBead alkyl quaternary ammonium functionalized latex (5% cross-linked).Anion-exchange capacity~40 μeq/column (4 × 250 mm analytical column)Column constructionPEEK? with 10-32 threaded ferrule-style end fittings.All components are nonmetallic.DimensionsDNAPac PA100 Analytical Column:2 × 250 mmDNAPac PA100 Guard Column:2 × 50 mmDNAPac PA100 Analytical Column:4 × 250 mmDNAPac PA100 Guard Column:4 × 50 mmDNAPac PA100 Semipreparative Column:9 × 250 mmDNAPac PA100 Semipreparative Column:22 × 250 mmDNAPac PA100 Semipreparative Guard Column:22 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Separation of oligonucleotides using the DNAPac? PA100. (A) Attempted Separation of 3 μg of pd(G)12-18 with a NaCl gradient of pH 8.0. (B) Resolution of pd(G)12-18 Homopolymers at pH 12.4 with a 500 to 900 mM NaCl Gradient. Analysis of Synthetic Homopolymer.Product Data SheetsDNAPac PA100 Data SheetDNAPac PA100 Analytical Column ManualApplication NotesAN 100: High-Resolution Analysis and Purification of Oligonucleotides with the DNAPac PA100 ColumnGuidesDNAPac PA100 Analytical Column ManualArticlesHigh-Resolution Nucleic Acid Separations by High-Performance Liquid Chromatography

氨基酸OPA/IBLC柱前衍生分析包 · 高分辨率（所有蛋白氨基酸都在单一的色谱图中体现） · 杰出的高灵敏度（fMol） · 超长的柱寿命 OPA/IBLC柱前衍生分析D-氨基酸和L-氨基酸 色谱条件 色谱柱： Grom TM Sil OPA-2, 4x250mm 流动相： A：A：23mM钠醋酸，pH 6.0 B：600mL 甲醇 + 50mL 乙腈 梯度： 0-53% B（0-75min 流速： 0.8mL/min 柱温： 24℃ 荧光检测器： 发射波长 230 nm，激发波长445 nm OPA/IBLC 分析包 完整的分析包： 4.0mm内径，250mm长色谱柱 OPA/IBLC衍生化试剂 详细指导说明书 订货号：987.0000

Dionex CarboPac PA10 糖和氨基酸分析柱 用途和特点AminoPac PA10柱结合阴离子交换，梯度淋洗以及脉冲电化学检测，可以分离多种氨基酸。分离氨基酸的同时，还可检测氨基糖及碳水化合物。此外，还可分离多种糖类，磷酸化氨基酸，以及含硫氨基酸的普通氧化产物，如磺基丙氨酸。其柱填料为疏水性高聚物薄壳型阴离子交换剂，可在pH0-14范围内使用。填料独特的pH稳定性允许使用的淋洗液，有助于氨基酸在金电极的阳极氧化。 Dionex CarboPac PA10 糖和氨基酸分析柱订货信息：分析柱CarboPac PA10 Analytical Column (2 x 250 mm)057180CarboPac PA10 Analytical Column (4 x 250 mm)046110CarboPac PA10 Semi-Preparative (9 X 250 mm)SP4216保护柱CarboPac PA10 Guard Column (2 x 50 mm)057181AminoTrap Column (2 x 50 mm)SP5578CarboPac PA10 Guard Column (4 x 50 mm)046115Amino Trap Column (4 x 50 mm)046122Borate Trap Column047078Amino Trap Column (3 x 30 mm)060146 For Sensitive Analysis of Mono- and DisaccharidesThe Thermo Scientific? CarboPac? PA10 column line has been expanded to include a new 0.4 × 250 mm capillary column. As with all CarboPac PA10 columns, the new capillary format is the ideal choice for mono- and disaccharides in foods, drugs and plants.The CarboPac PA10 is an ideal choice for separations of mono- and disaccharides found in mammalian glycoproteins. Fucose is well resolved from the system void and from protein hydrolysate interferents. The CarboPac PA10 allows oxygen to elute after mannose, eliminating interference with monosaccharides. It is ideal for the analysis ofmono- and disaccharides in foods, drugs, and plants, and separates sialic acids with the addition of sodium acetate to the eluent.For the quantification of acidic, neutral, and aminomonosaccharidesSimple, isocratic separationsSuperior selectivity for common monosaccharides compared to the CarboPac PA1No derivatization requiredGradient compatibleThe CarboPac PA10 is an anion-exchange column designed specifically for high-resolution separations of mono- and disaccharides. Separation is accomplished with a simple isocratic eluent, and detection is accomplished with pulsed amperometric detection (PAD). No derivatization is required. CarboPac PA10 Column for Monosaccharide and Disaccharide Analysis SpecificationsDimensionsCarboPac PA10 Analytical Column:4 × 250 mm, 2 × 250 mm and 0.4 × 250 mmCarboPac PA10 Guard Column:4 × 50 mm, 2 × 50 mm and 0.4 × 50 mmMaximum operating pressure3500 psi (24.5 MPa)Temperature range4–55 °CRecommended operating temperature: ambientTypical operating conditions1900 psi at 1.0 mL/min (4 mm analytical and guard columns)Recommended flow rate: 1.0 mL/min (4 mm), 0.25 mL/min (2 mm) or 0.010 mL/min (0.4 mm)Mobile phase compatibilitypH 0–14 up to 90% of common HPLC solvents.Avoid anionic detergents and 100% water.Acetate or hydroxide eluents only.Resin composition10-μm diameter substrate (ethylvinylbenzene 55% cross-linked with divinylbenzene) agglomerated with 460-nm MicroBead? difunctional quaternary ammonium ion (5% cross-linked).Anion-exchange capacityApproximately:100 μeq/column (4 × 250 mm analytical column)25 μeq/column (2 × 250 mm analytical column)1 μeq/column (0.4 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded ferrule-style end fittings.All components are nonmetallic.Monosaccharide analysis of fetuin hydrolysate sample using the Dionex CarboPac PA10. High-sensitivity analysis using the CarboPac PA10. Sialic acid analysis of bovine transferrin on the Dionex CarboPac PA10. The Dionex CarboPac PA10 resolves mixtures of glycols, sugar alcohols, and carbohydrates in a pharmaceutical formulation.ManualsDionex CarboPac PA10 Column Product ManaulProduct Data SheetsCarboPac PA10 Column for Mono- and Disaccharide Analysis Product SpecificationsApplication NotesAN 117: Quantification of Carbohydrates and Glycols in PharmaceuticalsApplication UpdatesAU 141: Improved Long-Term Stability of N-Acetylneuraminic Acid and N-Glycolylneuraminic Acid Peak Area Responses Using Waveform A, a Quadruple Potential WaveformTechnical NotesTN 41: Analysis of Sialic Acids Using High-Performance Anion-Exchange ChromatographyTN 40: Glycoprotein Monosaccharide Analysis Using HPAE-PAD with Eluent GenerationTN 20: Analysis of Carbohydrates by High Performance Anion Exchange Chromatography with Pulsed Amperometric Detection (HPAE-PAD)

Ultron ES-OVM，粒径5&mu m，孔径120Å ，规格有150*2.0mm、150*4.6mm、150*6.0mm，手性固定相为卵粘蛋白化学键合到硅胶表面，符合USP L57。北京绿百草科技发展有限公司独家代理日本信和化工色谱产品。Ultron ES-OVM有很多手性识别位点，使得该柱子适用于大范围内的对映体化合物的分离，Ultron ES-OVM色谱柱可用于痕量分析，是硫酸氢氯比格雷的专用手性柱。国家药品标准中规定，Ultron ES-OVM色谱柱作为苯磺酸左旋氨氯地平光学异构体测定的专用柱。Ultron ES-OVM色谱柱还可以以下物质：1,2二苯基乙基胺 1,2-二苯基乙基胺&beta -阻滞剂 氧烯洛尔 心得平&beta -阻滞剂 Bunitrolol布尼洛尔&beta -阻滞剂 Alprenolol阿普洛尔 心得舒&beta -阻滞剂 Arotinolol&beta -阻滞剂 Pindolol吲哚洛尔&beta -阻滞剂 Propranolol普萘洛尔 萘心安&beta -阻滞剂 Propranolol 普萘洛尔 萘心安钙拮抗剂 Bay K 8644 钙拮抗剂 Verapamil 维拉帕米 异博定钙拮抗剂 Prenylamine 普尼拉明 心可定支气管扩张药 Clorprenaline 氯丙那林局部麻醉药 Bupivacaine 布比卡因肌肉松弛剂 Chlormezanone 氯美扎酮肌肉松弛剂 Tolperisone 托哌酮利尿剂 Ethiazide 乙噻嗪抗抑郁药 曲米帕明消炎药 Flurbiprofen 氟比洛芬消炎药 Ibuprofen 布洛芬消炎药 Ketoprofen 酮洛芬消炎药 Pranoprofen 普拉洛芬消炎药 Zaltoprofen 扎拉洛芬胆碱能阻滞剂 Glycopyrronium bromide 格隆溴铵胆碱能阻滞剂 Mepenzolate bromide 溴美喷酯抗精神病药 Thioridazine 硫利达嗪抗癫痫药 Mephobarbital 甲苯比妥抗癫痫药 乙酰苯丁酰脲 抗帕金森药 Biperiden 比哌立登抗帕金森药 Profenamine 普鲁芬胺抗帕金森药 Trihexyphenidyl 苯海索抗组织胺药 Alimemazine 阿利马嗪抗组织胺药 Chlorpheniramine 马来酸氯苯那敏抗组织胺药 Dimethindene maleate 二甲茚定抗组织胺药 Homochlorcyclizine 高氯环秦抗组织胺药 Promethazine 普鲁米近 异丙嗪抗焦虑剂 Hydroxyzine 羟嗪 安泰乐抗心律不齐药 Disopyramid 双异丙吡胺安眠药 Glutethimide 格鲁米特安眠药 Hexobarbital 海索比妥抗消化溃疡剂 Proglumide 丙谷胺The central neuron stimulant Methylphenidate 哌甲酯甲状腺素 甲状腺素镇咳药 Benproperine 苯丙哌林美克洛嗪抗组胺药 美克洛嗪抗组胺药窄孔柱应用药物分析华法林抗凝药黄酮类 Flavanone 二氢黄酮安息香 安息香肌肉松弛剂 Chlorphenesin 氯丙炔典肌肉松弛剂 Eperisone 乙哌立松 镇咳药 Cloperastin 氯哌啶抗抑郁药 三甲丙咪嗪需要详细的信息请和绿百草科技联系或登录网站获得更多产品信息

HF瓶口分配器、取酸器Teflon（特氟龙系列）手动瓶口分液器/瓶口分配器是我公司针对一些强酸强碱，王水、HF、各种有机溶剂研制的一款实验室小型移液、取酸设备，尤其是HF。设计简单，使用方便，尤其适用于样品量大，酸用量少的实验室操作。产品特点：1、液路中的部件由高纯特氟龙材料制成，如PTFE，PFA，FEP。2、适合移取强酸、强碱，尤其是氢氟酸。3、移取液体中痕量金属的浓度通常低至ppb级别4、特氟龙材料坚固耐用，耐受强酸强碱，是溶液及试剂移液的专用设备。5、手动式操作，实验人员可轻松控制液体流量，拆卸简单。6、瓶口和瓶身密封性好，液体不渗漏；内外壁平滑，易于清洗，不易残留，可在煮沸的硝酸中清洗。 7、此产品采用了特氟龙材质加工而成，避免金属元素的混入，提高了实验的准确度和紧密度。可定制和各种瓶口配套的接口。8、规格有：1、2、3、5、6、10ml等等，可定制各种规格！9、解决了在痕量分析中对HF氢氟酸吸取问题，和HF氢氟酸对玻璃瓶腐蚀难题。另外，在地质样品前处理中，利用PFA溶样罐进行样品消解时，能准确、连续、定量、批量进行HF、盐酸、硝酸、王水、高氯酸等强腐蚀性样品加样处理。10、主要用于广泛用于ICP-MS、ICP-OES等痕量分析以及同位素分析等实验室。地质、电子化学品、半导体分析测试、疾控中心、制药厂、环境检测、食品检测中心等一些机构多次少量取酸用。品名规格（ml）材质FEP瓶口分配器500mlTeflon FEP1000ml南京瑞尼克科技开发有限公司专注自然成！期待与您的合作！

Nalgene 高速离心瓶，1L，聚碳酸酯PC 材质，带密封盖?广口、高速离心瓶，最高转速可达15,810 xG。刻度标记，半透明瓶体，光滑内壁降低对细胞的剪切力。建议使用温度4℃ to 22℃，可储存于- 70℃。达到USP Vi，无细胞毒性。订货信息：Nalgene 高速离心瓶，1L，聚碳酸酯PC 材质，带密封盖目录编号 .标称容量，mL每箱数量3140-100610006另有新品：1L Oak Ridge 离心瓶带密封盖?防漏，可高温高压灭菌，易于清洗?专为高速离心设计的密封盖?广口，便于移除颗粒?卓越的耐化学性（聚丙烯）?卓越的透光性（聚碳酸酯）

Dionex AminoPac PA10 氨基酸分析柱用途和特点AminoPac PA10柱结合阴离子交换，梯度淋洗以及脉冲电化学检测，可以分离多种氨基酸。分离氨基酸的同时，还可检测氨基糖及碳水化合物。此外，还可分离多种糖类，磷酸化氨基酸，以及含硫氨基酸的普通氧化产物，如磺基丙氨酸。其柱填料为疏水性高聚物薄壳型阴离子交换剂，可在pH0-14范围内使用。填料独特的pH稳定性允许使用的淋洗液，有助于氨基酸在金电极的阳极氧化。Dionex AminoPac PA10 氨基酸分析柱订货信息：分析柱AminoPac PA10 Analytical Column (2 x 250 mm)055406AminoPac PA10 (22 x 250 mm)SP5488AminoPac PA10 (9 x 250 mm)SP5490AminoPac PA10 Analytical Column (4 x 250 mm)SP5678保护柱AminoPac PA10 Guard Column (2 x 50 mm)055407AminoPac PA10 Guard Column (4 x 50 mm)SP5680配件AAA-Direct Installation Kit059539Carbohydrate Removal Cartridge (CRC) for AAA-Direct068598For High-Resolution Separations of Free Amino Acids by AAA-DirectThe AminoPac® PA10 column is packed with a hydrophobic, polymeric, pellicular, anion-exchange resin that is stable over the range of pH 0–14. The unique pH stability allows the use of eluents that are conducive to anodic oxidation of amino acids at gold electrodes. This column is recommended for use with the AAA-Direct™ Amino Acid Analyzer, allowing direct detection of primary and secondary amino acids by IPAD, with no need for pre- or postcolumn derivatization.Derivatization not requiredCarbohydrates and amino acids separated and detected simultaneouslyMid-femtomole to low-picomole detection limitsCompatible with all commonly used hydrolysis proceduresCan be configured for on-line analysisAAA-Direct is a technique that eliminates the need for any form of derivatization, and is therefore compatible with on-line monitoring of cell cultures and fermentation broths. The AminoPac PA10 column is optimized for separations of free amino acids by AAA-Direct. Vitamins, amino sugars, and carbohydrates can be detected simultaneously with amino acids. Additional capabilities include separation of a wide range of sugars, phosphorylated amino acids, and common oxidation products of sulfur-containing amino acids, such as cysteic acid, methionine sulfone, and methionine sulfoxide. AminoPac PA10 Column for Amino Acid Analysis by AAA-Direct SpecificationsRecommended operating temperature30 °CTypical operating conditions0.25 mL/min gradientRecommended flow rate: 0.25 mL/minMobile phase compatibilitypH 0–14 100% compatible with common organic solvents.Dionex sodium acetate ionic form eluents only.Resin composition8.5-μm-diameter microporous (10 ?) bead (55% cross-linked)agglomerated with an 80-nm microbead alkyl ammonium functionalized latex (1% cross-linked).Anion-exchange capacity60 μeq/column (2 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded ferrule-style end fittings.All components are nonmetallic.DimensionsAminoPac PA10 Analytical Column:2 × 250 mmAminoPac PA10 Guard Column:2 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Determination of amino acids and carbohydrates in LB broth supernatant. Amino acids and sugars in red wine. "High Glucose" Fermentation Broth (1:250 Dilution) Separation of an Amino Acid Standard Mixture Containing 100 pmol of Each Component. Comparison of Amino Acid Concentrations for Collagen Measured by Integrated Amperometry and Ninhydrin Methods.Application NotesAN 179: Carbohydrate and Amino Acid Analysis Using 3-D AmperometryAN 150: Determination of Amino Acids in Cell Cultures and Fermentation BrothsAN 142: Determination of Tryptophan Using AAA-DirectAN 130: Identification of a Hydroxylysine-Containing Peptide Using AAA-DirectTechnical NotesTN 55: Screening of Sample Matrices and Individual Matrix Ingredients for Suitability in AAA-DirectTN 50: Determination of the Amino Acid Content of Peptides by AAA-DirectGuidesAminoPac PA10 Analytical Column AAAAAA Direct System Installation Guide

深圳方源仪器供应日本爱党PAL系列迷你折射仪，该系列有不同种类测试仪器，可广泛地使用在果汁测试、调味料测试、食品加工等多方面，使用方法非常简单而且非常安全，快速准确任何人都会使用&diams Pâ tissier 型号 Model 特殊标度种类 面板颜色 4508 PAL-Pâ tissier 糖度(Brix)/ 糖Baume(糖波美度) I &diams 蜂蜜 型号 Model 特殊标度种类 面板颜色 4422 PAL-22S 蜂蜜水分 B &diams 豆奶,盐卤(氯化镁) 型号 Model 特殊标度种类 面板颜色 4427 PAL-27S 豆奶 A 4443 PAL-43S 盐卤(氯化镁) C &diams 拉面汤(两种刻度) 型号 Model 特殊标度种类 面板颜色 4496 PAL-96S 拉面汤浓度/面用盐水 A &diams 调味料 型号 Model 特殊标度种类 面板颜色 4498 PAL-98S 调味料 A &diams 盐水 型号 Model 特殊标度种类 面板颜色 4232 PAL-ES2 盐度(电导法) 4233 PAL-ES3 盐度(电导法) 4403 PAL-03S 氯化鈉(g/100g) C 4506 PAL-106S 氯化鈉(g/100ml) C4404 PAL-04S 氯化鈉(比重) D 4405 PAL-05S 氯化鈉(波美) D &diams 海水 型号 Model 特殊标度种类 面板颜色 4406 PAL-06S 海水(浓度) D 4407 PAL-07S 海水(比重) D 4408 PAL-08S 海水(波美) D &diams 食品添加物,　成份 型号 Model 特殊标度种 面板颜色 4429 PAL-29S 檸檬酸 A 4430 PAL-30S 醋酸 A 4432 PAL-32S磷酸 E 4464 PAL-64S 重碳酸钠 E 4465 PAL-65S 酒石酸钠 E 4470 PAL-70S 磷酸钾 E &diams 切割油 型号 Model 特殊标度种类 面板颜色 4502 PAL-102S 切割油 E &diams 酒精 型号 Model 特殊标度种类 面板颜色 4434 PAL-34S 乙醇 C 4436 PAL-36S 甲醇 C 4437 PAL-37S 异丙醇 C 4485 PAL-85S 聚乙烯醇 C &diams 药剂 型号 Model 特殊标度种类 面板颜色 4412 PAL-12S 右旋糖酐 E 4413 PAL-13S 肌酸 E 4423 PAL-23S 甘油 丙三醇 (低浓度) E 4424 PAL-24S 甘油 丙三醇 (高浓度) E 4425 PAL-25S 菊糖 E 4426 PAL-26S 甘露醇 E 4431 PAL-31S 蚁酸 E 4432 PAL-32S 磷酸 E 4451 PAL-51S 溴化钠 E 4455 PAL-55S 硫酸镁 E 4464 PAL-64S 重碳酸钠 E 4465 PAL-65S 酒石酸钠 E 4466 PAL-66S 草酸钾 E 4468 PAL-68S 重铬酸钾 E 4470 PAL-70S 磷酸钾 E 4472 PAL-72S 钨酸盐钠 E

头孢氨苄 Cephalexin 400 mg 头孢噻吩钠 Cephalothin Sodium 200 mg 苄星头孢匹林 Cephapirin Benzathine 100 mg 头孢匹林钠 Cephapirin Sodium 500 mg 头孢拉定 Cephradine 200 mg 盐酸西替利嗪 Cetirizine Hydrochloride 250 mg 西替利嗪杂质A Cetirizine Related Compound A 20 mg 西曲溴铵 Cetrimonium Bromide 1 g 十六烷醇 Cetyl Alcohol 100 mg 十六烷棕榈酸酯 Cetyl Palmitate 50 mg 西吡氯铵 Cetylpyridinium Chloride 500 mg 粉荆提取物 Powdered Chaste Tree Extract 1.5 g 氯霉素 Chloramphenicol 200 mg 氯霉素棕榈酸酯 Chloramphenicol Palmitate 200 mg Chloramphenicol Palmitate Nonpolymorph A 200 mg Chloramphenicol Palmitate Polymorph A 100 mg 氯氮卓杂质A Chlordiazepoxide Related Compound A 25 mg 氯己定 Chlorhexidine 200 mg 醋酸氯己定 Chlorhexidine Acetate 500 mg 氯己定杂质 Chlorhexidine Related Compounds 50 mg 对氯苯胺 P-Chloroaniline 200 mg 氯丁醇 Chlorobutanol 200 mg .绿原酸 Chlorogenic Acid 50 mg 绿莲吉宁 beta-Chlorogenin 20 mg 盐酸氯普鲁卡因 Chloroprocaine HCl 200 mg 磷酸氯喹 Chloroquine Phosphate 500 mg 氯噻酮杂质A Chlorthalidone Related Compound A 15 mg 氯噻嗪 Chlorothiazide 200 mg 氯二甲酚 Chloroxylenol 125 mg 氯二甲酚杂质A Chloroxylenol Related Compound A 25 mg 马来酸氯苯那敏 Chlorpheniramine Maleate 125 mg 扑尔敏缓释片药物释放校正 Chlorpheniramine Maleate Extended-Release Tablets Drug Release Calibrator, Single Unit unit 氯苯沙明 Chlorphenoxamine HCl 200 mg 盐酸氯丙嗪 Chlorpromazine HCl 200 mg 氯磺丙脲 Chlorpropamide 200 mg 金霉素 Chlortetracycline HCl 200 mg 氯噻酮 Chlorthalidone 200 mg 氯唑沙宗 Chlorzoxazone 500 mg 氯唑沙宗杂质A Chlorzoxazone Related Compound A 50 mg 维生素D3 Cholecalciferol (Vitamin D3) unit 胆二烯醇 Delta-4,6-cholestadienol 30 mg 胆固醇辛酸酯 Cholesteryl Caprylate 200 mg 消胆胺 Cholestyramine Resin 500 mg 胆酸 Cholic Acid 2 g 重酒石酸胆碱 Choline Bitartrate 200 mg 氯化胆碱 Choline Chloride 200 mg 硫酸软骨素 Chondroitin Sulfate Sodium 300 mg 啶甲酸铬 Chromium Picolinate 100 mg 糜蛋白酶 Chymotrypsin 300 mg 环吡酮 Ciclopirox 50 mg 环吡酮杂质A Ciclopirox Related Compound A 25 mg 环吡酮胺 Ciclopirox Olamine 125 mg 环吡酮胺杂质B Ciclopirox Related Compound B 25 mg 西司他丁铵盐 Cilastatin Ammonium Salt 100 mg 西咪替丁 Cimetidine 200 mg 西咪替丁 Cimetidine HCl 200 mg 西诺沙星 Cinoxacin 200 mg 西沙比利 Cisapride 200 mg 西洛他唑 Cilostazol 200 mg 西洛他唑杂质A Cilostazol Related Compound A 50 mg 西洛他唑杂质B Cilostazol Related Compound B 50 mg 西洛他唑杂质C Cilostazol Related Compound C 50 mg 西酞普兰杂质G Citalopram Related Compound G 25 mg 克拉屈滨 Cladribine 200 mg 克拉屈滨杂质A Cladribine Related Compound A 20 mg 西酞普兰杂质H Citalopram Related Compound H 25 mg 氢溴酸西肽普兰 Citalopram HBr 125 mg 西肽普兰杂质A Citalopram Related Compound A 25 mg 西肽普兰杂质B Citalopram Related Compound B 25 mg 西肽普兰杂质C Citalopram Related Compound C 25 mg 西肽普兰杂质D Citalopram Related Compound D 15 mg 西肽普兰杂质E Citalopram Related Compound E 1-(3-dimethylaminopropyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile-N-oxide hydrochloride 25 mg 西肽普兰杂质F Citalopram Related Compound F 200 mg 环丙沙星 Ciprofloxacin 200 mg 环丙沙星乙二胺 Ciprofloxacin Ethylenediamine Analog 25 mg 盐酸环丙沙星 Ciprofloxacin HCl 400 mg 环丙沙星杂质A Ciprofloxacin Related Compound A 25 mg 顺铂 Cisplatin 100 mg 柠檬酸 Citric Acid 200 mg 克拉霉素 Clarithromycin 75 mg 克拉霉素杂质A Clarithromycin Related Compound A 50 mg 克拉霉素鉴别 Clarithromycin Identity 100 mg 克拉维烷-2-羧酸钾 Clavam-2-carboxylate Potassium 4 ug 克拉维酸锂 Clavulanate Lithium 200 mg 环丙沙星甲酰胺 Ciprofloxacin Formamide 125 mg 富马酸氯马斯汀 Clemastine Fumarate 250 mg 克利溴铵 Clidinium Bromide 2 g 克利溴铵杂质A Clidinium Bromide Related Compound A 250 mg 苯咪丁酮 Climbazole 400 mg 盐酸克林霉素 Clindamycin HCl 200 mg 盐酸克林霉素棕榈酸酯 Clindamycin Palmitate HCl 500 mg 克林霉素磷酸酯 Clindamycin Phosphate 125 mg 氯碘羟喹 Clioquinol 500 mg 丙酸氯倍他索 Clobetasol Propionate 200 mg 丙酸氯倍他索杂质A Clobetasol Propionate Related Compound A 50 mg 氯可托龙 Clocortolone Pivalate 200 mg 氯法齐明 Clofazimine 200 mg 降固醇酸 Clofibrate 1 g 克罗米酚柠檬酸盐 Clomiphene Citrate 500 mg 克罗米酚杂质A Clomiphene Related Compound A 100 mg 盐酸氯米帕明 Clomipramine HCl 200 mg 氯硝西泮杂质A Clonazepam Related Compound A 25 mg 氯硝西泮杂质B Clonazepam Related Compound B 25 mg 氯硝西泮杂质C Clonazepam Related Compound C 25 mg 氯压定 Clonidine 200 mg 氯压定 Clonidine HCl 200 mg 氯压定杂质A Clonidine Related Compound A 25 mg 氯压定杂质B Clonidine Related Compound B 25 mg 硫酸氯吡格雷 Clopidogrel Bisulfate 125 mg 氯吡格雷杂质A Clopidogrel Related Compound A 20 mg 氯吡格雷杂质B Clopidogrel Related Compound B 20 mg 氯吡格雷杂质C Clopidogrel Related Compound C 20 mg 氯舒隆 Clorsulon 200 mg 克霉唑 Clotrimazole 200 mg 克霉唑杂质A Clotrimazole Related Compound A 25 mg 苄星邻氯青霉素钠 Cloxacillin Benzathine 200 mg 氯唑西林钠 Cloxacillin Sodium 200 mg 氯氮平 Clozapine 100 mg Clozapine Resolution Mixture 30 mg 鱼肝油 Cod Liver Oil 1 g 秋水仙碱 Colchicine 350 mg 酸考来替泊 Colestipol HCl 200 mg 多粘菌素E甲磺酸钠 Colistimethate Sodium 200 mg 硫酸粘杆菌素 Colistin Sulfate 200 mg 聚维酮 Copovidone 100 mg 玉米油 Corn Oil (AS) 1 g 促肾上腺皮质激素 Corticotropin unit 醋酸可的松 Cortisone Acetate 150 mg 棉籽油 Cottonseed Oil (AS) 1 g 肌酸肝 Creatinine 100 mg 色甘酸钠 Cromolyn Sodium 500 mg 色甘酸钠杂质A Cromolyn Sodium Related Compound A 25 mg 交联聚维酮 Crospovidone 200 mg 克罗米通 Crotamiton 200 mg 异丙苯 Cumene 3x1.2 mL 姜黄素 Curcumin 30 mg 姜黄提取物 Curcuminoids 300 mg 氯化氰定 Cyanidin-3-O-glucoside Chloride 15 mg 维生素B12 Cyanocobalamin (Vitamin B12) 1.5 g 环扁桃酸酯 Cyclandelate 200 mg 赛克利嗪 Cyclizine HCl 200 mg 盐酸环苯扎林 Cyclobenzaprine HCl 200 mg &alpha -环糊精 Alpha Cyclodextrin 50 mg &beta -环糊精 Beta Cyclodextrin 250 mg Gamma Cyclodextrin 200 mg 环己烷甲醇 Cyclohexylmethanol 2x1mL Cyclomethicone 4 200 mg Cyclomethicone 5 200 mg Cyclomethicone 6 200 mg 盐酸环戊酮 Cyclopentolate HCl 300 mg 2-Cyclopropylmethylamino-5-chlorobenzophenone 50 mg 环丝氨酸 Cycloserine 250 mg 环孢霉素 Cyclosporine 50 mg 环孢霉素混合物 Cyclosporine Resolution Mixture 25 mg 环噻嗪 Cyclothiazide (AS) 200 mg 盐酸赛庚啶 Cyproheptadine HCl 500 mg 赛庚啶杂质A Cyproheptadine Related Compound A 40 mg 赛诺吗嗪 Cyromazine 200 mg 半胱氨酸 L-Cysteine HCl 200 mg 阿糖胞苷 Cytarabine 250 mg 胞嘧啶 Cytosine 100 mg 达卡巴嗪 Dacarbazine 125 mg 达卡巴嗪杂质A Dacarbazine Related Compound A 50 mg 达卡巴嗪杂质B Dacarbazine Related Compound B 50 mg 放线菌素 Dactinomycin *) 50 mg 黄豆苷 Daidzin 30 mg 达那唑 Danazol 200 mg 丹曲洛林 Dantrolene 200 mg 丹曲林钠 Dantrolene Sodium 100 mg 丹曲林杂质A Dantrolene Related Compound A 50 mg 丹曲林杂质B Dantrolene Related Compound B 50 mg 丹曲林杂质C Dantrolene Related Compound C 50 mg 氨苯砜 Dapsone 125 mg 盐酸柔红霉素 Daunorubicin HCl 200 mg 十烃溴铵 Decamethonium Bromide 250 mg 地考喹酯 Decoquinate 200 mg 甲磺酸去铁胺 Deferoxamine Mesylate 500 mg 去水醋酸 Dehydroacetic Acid 200 mg 去氢卡替洛尔 Dehydrocarteolol HCl 100 mg 脱氢胆酸 Dehydrocholic Acid 200 mg 地美溴铵 Demecarium Bromide 250 mg 去甲环素 Demeclocycline HCl 200 mg 地那铵苯甲酸盐 Denatonium Benzoate 200 mg 2 -脱氧- D-葡萄糖 2-Deoxy-D-Glucose (AS) 100 mg 去乙酰盐酸地尔硫 Desacetyl Diltiazem HCl 50 mg 地氟烷 Desflurane 0.5 mL 地氟烷杂质A Desflurane Related Compound A 0.1 mL 盐酸地昔帕明 Desipramine HCl 125 mg 去乙酰毛花苷 Deslanoside 100 mg 脱甲氧基姜黄素Desmethoxycurcumin 30 mg 醋酸去氨加压素 Desmopressin Acetate 1.91 mg 去氧孕烯 Desogestrel 50 mg 去氧孕烯杂质A Desogestrel Related Compound A 15 mg 去氧孕烯杂质B Desogestrel Related Compound B 15 mg 去氧孕烯杂质C Desogestrel Related Compound C 25 mg 去羟米松 Desoximetasone 200 mg 醋酸去氧皮质酮 Desoxycorticosterone Acetate 200 mg 去氧皮质酮新戊酸酯 Desoxycorticosterone Pivalate 125 mg 地塞米松 Dexamethasone 125 mg 醋酸地塞米松 Dexamethasone Acetate 200 mg 磷酸地塞米松 Dexamethasone Phosphate 200 mg 马来酸右溴苯那敏 Dexbrompheniramine Maleate 200 mg 马来酸右氯苯那敏 Dexchlorpheniramine Maleate 300 mg 泛醇 Dexpanthenol 500 mg Dextran 1 50 mg Dextran T-10 200 mg Dextran 40 50 mg Dextran 40 System Suitability 200 mg Dextran 70 50 mg Dextran 70 System Suitability 200 mg Dextran Vo Marker 100 mg Dextran 4 Calibration 100 mg Dextran 10 Calibration 100 mg Dextran 40 Calibration 100 mg Dextran 70 Calibration 100 mg Dextran 250 Calibration 100 mg 右美沙芬 Dextromethorphan 2 g 氢溴酸左美沙芬 Dextromethorphan HBr 500 mg 葡萄糖 Dextrose 500 mg 二乙酰单酸甘油酯 Diacetylated Monoglycerides 200 mg 二乙酰基荧光素 Diacetylfluorescein 200 mg 泛影酸 Diatrizoic Acid 100 mg 泛影酸杂质A Diatrizoic Acid Related Compound A 50 mg 地西泮杂质A Diazepam Related Compound A 25 mg 二氮嗪 Diazoxide 200 mg 地布辛 Dibucaine HCl 200 mg 酞酸二丁酯 Dibutyl Phthalate 200 mg 癸二酸二丁酯 Dibutyl Sebacate (AS) 1 mL 2,4 -二氯苯酚 2,4-Dichlorophenol 100 mg 双氯非那胺 Dichlorphenamide 200 mg 敌敌畏 Dichlorvos 150 mg 双氯芬酸钾 Diclofenac Potassium 200 mg 双氯酚酸钠 Diclofenac Sodium 200 mg 双氯酚酸杂质A Diclofenac Related Compound A 25 mg 双氯西林钠 Dicloxacillin Sodium 500 mg 双香豆素 Dicumarol 200 mg 双环己基 Dicyclohexyl 2x2 mL 双环盐酸 Dicyclomine HCl 125 mg 去羟肌苷 Didanosine 200 mg 去羟肌苷系统适用性混合物 Didanosine System Suitability Mixture 10 mg 去羟肌苷杂质A Didanosine Related Compound A 25 mg 去羟肌苷杂质B Didanosine Related Compound B 25 mg 双烯雌酚 Dienestrol 125 mg 二乙醇胺 Diethanolamine 3 mL 枸橼酸乙胺嗪 Diethylcarbamazine Citrate 200 mg 二甘醇 Diethylene Glycol 0.5 mL 二甘醇单乙醚 Diethylene Glycol Monoethyl Ether 0.5 mL 酞酸二乙酯 Diethyl Phthalate 200 mg 乙烯雌酚 Diethylstilbestrol 200 mg 二乙甲苯酚胺 Diethyltoluamide 3 g 醋酸双氟拉松 Diflorasone Diacetate 200 mg 二氟尼柳 Diflunisal 200 mg 洋地黄 Digitalis 3 g 洋地黄毒苷 Digitoxin 200 mg 地高辛 Digoxin 250 mg 二氢辣椒碱 Dihydrocapsaicin 25 mg 二羟马烯雌酮 17a-Dihydroequilin 50 mg 双氢麦角胺甲磺酸盐 Dihydroergotamine Mesylate 500 mg 双氢链霉索 Dihydrostreptomycin Sulfate 200 mg 双氢速甾醇 Dihydrotachysterol unit 二羟丙酮 Dihydroxyacetone 250 mg 氯散糠酸酯 Diloxanide Furoate 200 mg 盐酸地尔硫卓 Diltiazem HCl 200 mg 地尔硫卓杂质A Diltiazem Related Compound A (AS) 25 mg 茶苯海明 Dimenhydrinate 100 mg 奎尼卡因 Dimethisoquin HCl 2 g 二甲亚砜 Dimethyl Sulfoxide 3 g 氨基丁三醇 Dinoprost Tromethamine 50 mg 地诺前列酮 Dinoprostone 50 mg 二羟苯宗 Dioxybenzone 150 mg 枸橼酸苯海拉明 Diphenhydramine Citrate 125 mg 盐酸苯海拉明 Diphenhydramine HCl 200 mg 盐酸地匹福林 Dipivefrin HCl 200 mg 双嘧达莫 Dipyridamole 200 mg 地红霉素 Dirithromycin 200 mg 鸟苷酸二钠 Disodium Guanylate (FCC) 350 mg 肌苷酸二钠 Disodium Inosinate (FCC) 500 mg 磷酸双异丙吡胺 Disopyramide Phosphate 200 mg 2,4-Disulfamyl-5-trifluoromethylaniline 30 mg 双硫仑 Disulfiram 200 mg 双丙戊酸钠 Divalproex Sodium 200 mg 盐酸多巴胺 Dobutamine HCl 600 mg 二十二碳六烯酸乙酯 Docosahexaenoic Acid Ethyl Ester 500 mg Docosyl Ferulate 50 mg 多库酯钙 Docusate Calcium 500 mg 多库脂钠 Docusate Sodium 500 mg 多库酯钾 Docusate Potassium 100 mg 甲磺酸多拉司琼 Dolasetron Mesylate 200 mg 甲磺酸多拉司琼杂质A Dolasetron Mesylate Re

SUMICHIRAL 住友OA-5000 L-乳酸锌手性分析色谱柱：住友L-乳酸锌手性分析色谱柱OA-5000，是由日本住友SCAS生产的，是高性能分离光学异构体的手性柱。研究高效液相色谱法测定乳酸锌中L-乳酸锌含量的方法，并对此方法学进行探讨。采用0A-5000手性色谱柱，1mmol/L CuSO4●5H2O溶液为流动相，流速为1 mL/min进行色谮分离DL-乳酸锌，分离效果好。L-乳酸锌在0.147~3.675 mg/mL范围内呈现良好的线性关系，相关系数达0.9999 (n=6) 精密度实验相对标准偏差为0.044% 稳定性实验相对标准偏差为0.061% 平均回收率达(99.8士 1.90) %，相对标准偏差仅为1.90%。表明此方法操作简便，结果准确可靠，可用于L乳酸锌的准确测定和品质监控。SUMICHIRAL住友色谱柱选择方式（含乳酸分析柱专用柱选择）：乳酸锌作为一种补充微量元素锌的新型营养强化剂，无臭、味甘甜，且价格适中 其相对于硫酸锌等补锌剂更易被人体吸收，对肠道无刺激，具有增强食欲、促进生长发育、提高肌体免 疫力和维持皮肤健康等作用，可广泛用于食品、医疗保健等领域。现代工业中乳酸锌主要是通过氧化锌与乳酸反应，硫酸锌与乳酸钙合成而得。合成乳酸锌的乳酸中含有一个手性碳原子，因此具有旋光性。人体和动物体内存在的L-乳酸脱氢酶只能代谢L-乳酸，不能分解吸收D-乳酸。摄入过量的D-乳酸或DL乳酸会致使血液中含较多D-乳酸，造成体液中酸度过高，继而出现机体疲劳，代谢紊乱，甚至引起酸中毒等症状:世界卫生组织明确规定人体每天摄取控制在100 mg/kg以下，我国市场生产的乳酸主要是用发酵法或化学合成法，大多是DL-乳酸制品。由此建立对乳酸锌及其制品准确测定L-乳酸锌的方法，对于控制品质、提高食品**及监督水平具有重要的意义。L-乳酸锌手性分析：L-乳酸锌手性分析色谱柱 OA-5000的应用及技术支持，欢迎联系住友授权代理商-广州绿百草！广州绿百草是Sumichiral日本住友授权代理商！

Nalgene 3138Oak Ridge 离心管（带密封盖），聚碳酸酯；聚丙烯螺旋盖；硅胶垫圈?可用于转速达50,000xg 的冷冻离心机或非冷冻离心机。有密封盖可供您选择。在进行高温高压操作之前，请将盖放置在管上，但不要按螺纹旋转密封。填充量达到其总容量的80% 以上才能正常工作。可高温高压灭菌/ 生物危害/ 透明/ 防漏订货信息：Nalgene 3138Oak Ridge 离心管（带密封盖），聚碳酸酯；聚丙烯螺旋盖；硅胶垫圈目录编号 3138-0010-0016-0030-0500标称容量，ml10163050每盒数量10101010每箱数量505050100

寡核苷酸的分析与分离合成寡核苷酸和DNA片段被应用于迅速发展的应用领域，包括作为主体或杂交探针用于治疗性制剂。沃特世寡核苷酸分离技术(OST：Oligonucleotide Separation Technology)基于BEH杂化颗粒的反相色谱柱，以及Gen-Pak?离子交换柱，应对各种高分辨分析与实验室规模分离挑战所需，包括涉及各种DNA和RNA品种。寡核苷酸分析柱 — 异乎寻常的高分辨率沃特世寡核苷酸色谱柱装有键合了C18的第二代杂化技术BEH颗粒。对去三苯甲基(detritylated，或称脱保护)的合成寡核苷酸样品的分离，基于成熟的离子对反相色谱法。沃特世提供1.7 μm UPLC颗粒或2.5 μm HPLC颗粒，装填以各种不同色谱柱规格，从而灵活满足各种实验室规模分离或分析的不同需求，并能实现异乎寻常的样品分辨率和卓越的色谱柱使用寿命。此外，沃特世的制造和质控测试程序，有助于确保批次之间与柱之间的性能的一致性，而无论应用的难度有多高。分离效率相当于或优于PAGE、CGE、或离子交换HPLC方法??可从去三苯甲基(脱保护)的全长产物中分辨出失败序列??可放大的柱规格，满足实验室规模的分离需求??超长的色谱柱使用寿命，降低单次分析或分离成本??经MassPREP OST标准品质控测试，帮助确保性能稳定杰出的色谱柱寿命在这些苛刻的分离条件下，填充以BEH技术颗粒的沃特世寡核苷酸色谱柱显示出引人注目的柱寿命，同时还具有并保持卓越的分离性能。而在相同的苛刻分离条件下，传统硅胶基质色谱柱的使用寿命显著缩短。干扰RNA寡核苷酸的UPLC/MS分析RNA干扰(RNAi)机制的发现现在被广泛用于静默目标基因表达，这推动了对小分子干扰RNA(siRNA)分析的需求。为满足对20-25个核苷酸的小分子干扰RNA(siRNA)进行耐用的、快速的、灵敏的分析的需求，沃特世开发了一个UPLC/MS方法，运用了UPLC OST色谱柱和Synapt HDMS质谱仪。采集准确质量可对5’-截断寡聚体(寡核苷酸合成过程所产生的失败序列)以及其它一些杂质峰进行分配。质谱图中的质量的每个峰均使用MaxEnt 1软件进行去卷积化。图2给出了推测性的5’-端失败产物。对寡核苷酸母体的几乎完整序列均进行了解释。质谱分析还显示除了目标21-mer RNAi序列以外，还存在一个额外的尿苷单核苷酸。寡核苷酸分离柱产品一览表订货信息：产品描述粒径孔径柱规格部件编号ACQUITY UPLC OST C18 *1.7 μm130A2.1 x 50 mm186003949ACQUITY UPLC OST C18 *1.7 μm130A2.1 x 100 mm186003950ACQUITY UPLC OST C18 *1.7 μm130A2.1 x 150 mm186005516ACQUITY UPLC OST C18方法验证包**1.7 μm130A2.1x 100 mm186004898ACQUITY UPLC OST C18 定制柱*1.7 μm130A定制186003951XBridge OST C182.5 μm130A2.1 x 50 mm186003952XBridge OST C182.5 μm130A4.6 x 50 mm186003953XBridge OST C182.5 μm130A10 x 50 mm186003954XBridge OST C18 方法验证包**2.5 μm130A4.6 x 50 mm186004906XBridge OST C18定制柱2.5 μm130A定制186003955* 用于配合沃特世UPLC系统使用**来自于不同批次填料所装填的三根色谱柱

Dionex CarboPac PA1 糖和氨基酸分析柱对于各种基质中单糖、双糖和线性多糖的测定，使用耐用的 Thermo Scientific? Dionex? CarboPac? PA1 分析和保护柱。 这款专用的阴离子交换柱与脉冲电流检测技术 (PAD) 结合使用，可提供高分辨率的分离。 Dionex CarboPac PA1 树脂的独特 Thermo Scientific? Dionex? MicroBead? 薄壳结构，使其在所有缓冲盐溶液中可保持 pH 0–14 的稳定性。 薄壳的树脂结构提供出色的质量传递优秀的传质，从而实现快速的梯度再平衡。描述用于碳水化合物分离的耐用型柱 经验证适用于各种正式的食物分析方法特别适合针对营养标签进行的食物分析非常适用于中性与酸性单糖的分离灵敏度低于 Dionex CarboPac PA10 或 PA20 柱提供微孔、标准孔和半制备规格关于 Dionex CarboPac 柱系列Dionex CarboPac 系列提供精选的高性能液相色谱 (HPLC) 柱，每一款均为不同类别化合物而优化。 与能够检测碳水化合物而不产生衍生物的 PAD 配合使用，这些色谱柱支持简单可靠的糖醇、单糖和双糖、多糖和低聚糖分离技术。 Dionex CarboPac 柱提供以下成分的高分辨率分离：膳食纤维中的糖蛋白单糖和复合碳水化合物，包括果聚糖、麦芽糊精和支链淀粉单糖，例如从糖蛋白水解物和植物水解物得到的单糖单糖和双糖 用途和特点AminoPac PA1柱用于氨基酸的快速分离。特别适用于分析酸性和酸不稳定性氨基酸，以及用阳离子交换分离不完全的氨基酸对。Dionex CarboPac PA1 糖和氨基酸分析柱订货信息：分析柱CarboPac PA1 Analytical Column (2 x 250 mm)057178CarboPac PA1 Analytical Column (4 X 250 mm)035391CarboPac PA1 Semi-Preparative Column (9 x 250 mm)039686CarboPac PA1 Semi-Preparative Column (22 x 250 mm)0SP2866保护柱CarboPac PA1 Guard Column (2 x 50 mm)057179CarboPac PA1 Guard Column (4 x 50 mm)043096CarboPac PA1 Guard (9 x 50 mm)063501 Ideal Column for the Separation of Neutral and Acidic MonosaccharidesThe CarboPac? PA1 is an anion-exchange column for the separation of mono-, disaccharides, and specific oligosaccharides using an isocratic eluent. Sialic acid analysis has also been demonstrated on this column. General-purpose column for isocratic determination of monosaccharides and disaccharidesDetection by pulsed amperometric detection no derivatization neededApproved for use in a variety of official methods for the analysis of foodsThe unique MicroBead? pellicular structure of the CarboPac PA1 resin gives it stability from pH 0–14 at all concentrations of buffer salts. The pellicular resin structure allows excellent mass transfer resulting in fast gradient reequilibration.The CarboPac PA1 column is used with pulsed amperometric detection no derivatization is required. Sensitivity on the PA1 is not as high as with the CarboPac PA20 or PA10 for monosaccharide analysis. Thus the CarboPac PA1 is well suited for the analysis of foods for nutritional labeling. The CarboPac PA1 has been approved for use in a number of official methods. CarboPac PA1 Column for Routine Carbohydrate Analysis SpecificationsDimensionsCarboPac PA1 Analytical Column:4 × 250 mm and 2 × 250 mmCarboPac PA1 Guard Column:4 × 50 mm and 2 × 50 mmCarboPac PA1 Semipreparative Column:22 × 250 mmMaximum operating pressure4000 psi (27.9 MPa)Temperature range4–55 °CRecommended operating temperature: ambientTypical operating conditions1500 psi at 1.0 mL/min (analytical and guard columns)Recommended flow rate: 1.0 mL/min (for 4 × 250 mm)Mobile phase compatibilitypH 0–14 up to 2% of common HPLC solvents.Acetate or hydroxide eluents only.Resin composition10-μm-diameter substrate (polystyrene 2% cross-linked with divinylbenzene) agglomerated with 500-nm MicroBead quaternary ammonium functionalized latex (5% cross-linked).Anion-exchange capacityApproximately 100 μeq/column (4 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded-ferrule-style end fittings.All components are nonmetallic.Chromatographic analysis of purified inulin. Analysis of mono- and diphosphorylated monosaccharides on the CarboPac PA1. Isocratic Separation of Sugars Found in Sugarcane Molasses Using the CarboPac PA1 ColumnManualsDionex CarboPac PA1 Column Product ManualProduct Data SheetsDionex CarboPac PA1 Column for Mono-, Di- and Oligosaccharide AnalysisApplication NotesAN 186: Analysis of Paromomycinby HPAE-IPADAN 155: Determination of Trans-Galactooligosaccharides in Foods by AOAC Method 2001.02AN 147: Determination of Polydextrose in Foods by AOAC Method 2000.11AN 92: Determination of Sugars in Molasses by High Performance Anion Exchange with Pulsed Amperometric DetectionAN 82: Analysis of Fruit Juice Adulterated with Medium Invert Sugar from BeetsAN 67: Determination of Plant-Derived Neutral Oligo- and PolysaccharidesAN 66: Determination of Neomycin B and Impurities Using HPAE-PADAN 61: Determination of Tobramycin and Impurities Using HPAE-PAD Application UpdatesAU 150: Determination of Plant-Derived Neutral Oligo- and Polysaccharides Using the CarboPac PA200Technical NotesTN 116: Determination of Bromate by ISO Method 11206TN 36: Analysis of Exoglycosidase Digestions of N-Linked Oligosaccharides Using HPAE-PADTN 30: Monosaccharide and Oligosaccharide Analysis of Glycoproteins Electrotransferred onto Polyvinylidene Fluoride (PVDF) MembranesTN 20: Analysis of Carbohydrates by High Performance Anion Exchange Chromatography with Pulsed Amperometric Detection (HPAE-PAD)

透明 棕色四氟全自动滴定管由上海书培实验设备有限公司加工定制，规格分为：10ml,25ml,50ml 透明玻璃活塞全自动滴定管，透明四氟活塞全自动滴定管，棕色玻璃活塞全自动滴定管，棕色四氟活塞全自动滴定管。 透明 棕色四氟全自动滴定管规格：产品名称规格单价（元）品牌 透明玻璃活塞全自动滴定管10ml330书培25ml350书培50ml370书培 透明四氟活塞全自动滴定管10ml360书培25ml390书培50ml430书培 棕色玻璃活塞全自动滴定管10ml370书培25ml390书培50ml410书培 棕色四氟活塞全自动滴定管10ml400书培25ml430书培50ml470书培透明 棕色四氟全自动滴定管使用方法： 1、在装滴定液前，须将滴定管洗净，使水自然沥干（内壁应不挂水珠），先用少量标准溶液荡洗三次，（每次约5～10ml），除去残留在管壁和下端管尖内的水，以防装入标准溶液被水稀释。2、标准溶液装入滴定管应超过标线刻度零以上，这时滴定管尖端会有气泡，必须排除，否则将造成体积误差。如为酸式滴定管可转动活塞，使溶液的急流逐去气泡；如为碱式滴定管，则可将橡皮管弯曲向上，然后捏开玻珠，气泡即可被溶液排除。3、最后，再调整溶液的液面至刻度零处，即可进行滴定。注意事项 ：1、滴定管在装满标准溶液后，管外壁的溶液要擦干，以免流下或溶液挥发而使管内溶液降温（在夏季影响尤大）。手持滴定管时，也要避免手心紧握装有溶液部分的管壁，以免手温高于室温（尤其在冬季）而使溶液的体积膨胀，造成读数误差。2、使用酸式滴定管时，应将滴定管固定在滴定管夹上，活塞柄向右，左手从中间向右伸出，拇指在管前，食指及中指在管后，三指平行地轻轻拿住活塞柄，无名指及小指向手心弯曲，食指及中指由下向上顶住活塞柄一端，拇指在上面配合动作。在转动时，中指及食指不要伸直，应该微微弯曲，轻轻向左扣住，这样既容易操作，又可防止把活塞顶出。3、每次滴定须从刻度零开始，以使每次测定结果能抵消滴定管的刻度误差。 4、在装满标准溶液后，滴定前“初读”零点，应静置1～2分钟再读一次，如液面读数无改变，仍为零，才能滴定。滴定时不应太快，每秒钟放出3～4滴为宜，更不应成液柱流下，尤其在接近计量点时，更应一滴一滴逐滴加入（在计量点前可适当加快些滴定）。滴定至终点后，须等1～2分钟，使附着在内壁的标准溶液流下来以后再读数，如果放出滴定液速度相当慢时，等半分钟后读数亦可，“终读”也至少读两次。5、滴定管读数可垂直夹在滴定管架上或手持滴定管上端使自由地垂直读取刻度，读数时还应该注意眼睛的位置与液面处在同一水平面上，否则将会引起误差。 （读数应该在弯月面下缘最低点，但遇标准溶液颜色太深，不能观察下缘时，可以读液面两侧最高点，“初读”与“终读”应用同一标准。 ）6、滴定管有无色、棕色两种，一般需避光的滴定液（如硝酸银标准溶液、硫代硫酸钠标准溶液等），需用棕色滴定管。