比尼司特

IntroductionThe groundbreaking Symmetry CMOS-based EBSD detector, together with the powerful AZtec® software, is capableof acquiring EBSD and EDS data at speeds in excess of 3000 indexed patterns per second (pps). These speeds, twiceas fast as those achievable with conventional CCD-based detectors, are further enhanced by the fact that extremepixel-binning of the diffraction patterns is not necessary. This means that the quality of the data collected usingSymmetry is significantly better than with CCD-based detectors, both in terms of hit rate and also angular accuracy.In this application note we give examples of how Symmetry can be used to characterise the microstructures in twoexample metals at high speeds, providing reliable statistics in affordable timescales.

IntroductionIn Transmission Electron Microscopy (TEM) there are two ‘go to’ techniques for elemental analysis: EnergyDispersive X-ray Spectroscopy, (EDS), and Electron Energy Loss Spectroscopy, (EELS).EDS is a mature technique that can be used for most specimens. The intensity of generated X-raysis proportional to the mass thickness of the sample. However, this can become a limitation for verythin specimens or those comprising light elements. On the other hand, EELS is more suitable for thinsamples where the thickness is less than the inelastic mean free path of electrons in the material. EELSdoes, however, give high signal to noise for light elements. Simultaneous acquisition of both signals is apowerful tool for materials analysis.

HAAKE Viscotester-iQ智能流变仪提供的桨叶式测量方式向用户提供了一种快速、简单准确的方法来评估混凝土和水泥浆的屈服应力，并将其与标准塌落实验数据相关联。

芬太尼（Fentanyl）是一种强效的类阿片止痛剂，截至2012年，芬太尼是医学中使用最广泛的合成阿片类药物。其特点是起效迅速且作用时间极短，静脉注射后1分钟起效，4分钟达高峰，维持作用30分钟；肌内注射后约7分钟起效，维持约1~2小时。它是脑中μ -阿片受体的强力激动剂，芬太尼比吗啡效力高50~100倍，是海洛因的50倍；而其衍生物卡芬太尼（carfentanil）的药效是芬太尼的100倍，海洛因的5000倍，吗啡的10000倍，只要0.02克，就足以使一个成年人毙命。本应用主要介绍如何使用Serstech手持式拉曼光谱仪检测芬太尼。

上海伯东代理美国 inTEST-Temptronic 高低温测试机用于集成电路IC卡高低温测试，inTEST-Temptronic 高低温测试机每秒可快速升温/降温 18 度、测试温度精度高达±1℃，特别适合大规模集成电路的高低温电性能检测。

A forensic method for analysis of opiates, opioids, andtheir metabolites without hydrolysis has been developedusing the Prelude SPLC system and TSQ Endura MS. Byeliminating the hydrolysis step, the sample preparationtime and analysis cost was drastically reduced. The LCmethod on the Prelude SPLC system/TSQ Endura MS provided ample resolution for all isobaric compounds andan outstanding increase in overall speed of analysis. The high sensitivity that the TSQ Endura MS provided allowed for low limits of quantitation of even the least responsive analytes, like the gluronidated metabolites. The fast SRMacquisition rate yielded a successful, simultaneous analysisof 19 compounds with 10 internal standards.

testo350烟气分析仪测试窑炉气氛在水泥生产过程中，主要有三个环节需要对发生的排放情况进行监测和分析。熟料煅烧环节的窑炉氛围测试、测试预热器中的炉内气氛、

Developing Multiple Reaction Monitoring (MRM)-based screening methods for routine analysis is a common operation in analytical laboratories. To maximize analytical performance, researchers often need to optimize many LC and MS parameters. An intelligent software could assist method development from several aspects, such as cutting method development time, automating workflow, auto-selecting optimal parameters, tracking system to meet compliance requirement, etc.

The measurements discussed in this document relate to aCr-Ni-steel sample, the composition of which was originallydetermined with XRF and S-OES. Steel analysis using EDSgenerally deals with calculating the content of elements inthe intermediate atomic number range through evaluation ofthe K-lines of the X-ray spectrum.

Metal–organic frameworks assembled from flexible alicyclic carboxylate and bipyridyl ligands for sensing of nitroaromatic explosives

曼彻斯特机场集团（M.A.G）是英国最大的机场运营商，负责管理伦敦斯坦斯特德机场、伯恩茅斯机场、东米德兰兹机场和曼彻斯特机场四个机场组成的大型机场网络，每年共为约4850万人提供服务。该小组希望找到新的方法来减少噪声影响，优化运营并促进与周围社区的对话，建立互信关系，加强噪声管理。

o-Dichlorobenzene was dried over anhydrous sodium sulfate and distilled prior to use.All reactions were performed in a commercial microwave reactor(XH-100A,100-1000W,Beijing Xianghu Science and Technology Development Co.Ltd,Beijing,P.R.China).The temperature of the reaction mixture was measured by an immersed platinum resistance thermometer.Melting points were measured on a melting point apparatus and are uncorrected.H NMR(200 or 300 MHz)and C NMR(50 or75MHz)spectra were obtained on an EI mass spectrometer.IR spectra were recorded on a FT-IR spectrometer with an OMNI sampler.TLC separations were performed on silica gel GF plates ,and the plates were visualized with UV light.

本报告中介绍了一个使用示例，即如何采用高效液相色谱仪NexeraTM系列产品和高效液相色谱质谱分析仪LCMS-2050所组成的系统来分析孟鲁司特钠中的杂质。孟鲁司特钠作为支气管哮喘和过敏性鼻炎的治疗药物，收载于日本药典第十七修订版中。在本项测定中，不仅确认了杂质的分子量，还使用源内CID进行了结构分析。

采用UVISEL相调制型椭圆偏振光谱仪对Porous silicon composite material 样品进行分析，研究其相应光学性质。

本方法参考《NY/T761-2008蔬菜和水果中有机磷、有机氯、拟除虫菊酯和氨基甲酸酯类农药多残留的测定》用乙腈提取试样中的有机氯及拟除虫菊酯类农药，加入氯化钠使提取液中乙腈与水分离，取乙腈层浓缩后用正己烷溶解，应用睿科Fotector-06C全自动固相萃取系统，使用佛罗里硅土柱分离、净化，淋洗液经浓缩后，供GC/MS-SIM检测，外标法定量；当加标浓度为0.5mg/kg时，回收率在80~110%之间，除了p,p'-DDD与o,p'-DDT其他目标物的RSD小于10%，能够准确有效地测定。

利特斯光电直读光谱仪系统操作流程

本文应用岛津成像质谱显微镜iMScope QT对佩奥特掌（Peyote）植株本体与花中的麦司卡林的空间分布进行了分析，发现麦司卡林在导管相对集中的区域含量更高，为司法检测中微损取材提供参考，同时也为麦司卡林合成与运输机制的研究提供了线索。

相比于索氏提取，时间更短，产率更高。Abstract:The longan (Dimocarpus Longan Lour.) peel was extracted with 95% ethanol employing microwave-assisted extraction and Soxhlet extraction method, the total phenolic content of microwave-assisted extract of Langan peel (MEL) and Soxhlet extract of Langan peel (SEL) reached 96.78 mg/g and 90.35 mg/g dry weight, respectively, expressed as pyrocatechol equivalents, which were quanti?ed using Folin–Ciocalteu reagent. Subsequently, antioxidant properties of two extracts were investigated employing various established systems in vitro including 2,20-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, hydroxyl radical scavenging assay using a new resonance scattering (RS) method, reducing power and total antioxidant capacity. MEL and SEL showed excellent antioxidant in all test systems compared to synthetic antioxidant 2,6-di-ter-butyl-4-methylphenol (BHT) and the antioxidant activities of MEL were all superior to those of SEL. Furthermore, the suitability of MEL and SEL as substitute of BHT were determined in peanut oil, and the decrease of lipid oxidation were monitored using thiobarbituric acid-reactive substances (TBARS) assay. MEL and SEL treatment signi?cantly (P 0.05) reduced lipid oxidation in peanut oil compared to the control. No signi?cant differences (P ? 0:05T in lipid oxidation were detected between MEL, SEL and BHT samples of peanut oil.

Near-infrared spectroscopic solutions by Metrohm NIRSystems Theory of NIR spectroscopy NIR instruments and software for lab and process；Applications for NIRS and fields of use

Abstract—The palladium-catalyzed arylation of rac-(E)-3-acetoxy-1,3-diphenylprop-1-ene with arylboronic acids was studied under controlled microwave irradiation conditions. Avariety of different catalysts, bases, and solvents were explored in order to achieve optimum yields in the shortest possible reaction times. The best isolated yields were obtained using Pd2(dba)3$CHCl3/PPh3 as the catalytic system, potassium phosphate monohydrate as the base, and toluene/H2O as a solvent system. Microwave irradiation using 5 mol% of the palladium catalyst for 90 s (max. temp 170 C) generally afforded the cross-coupling products in good to excellent yields.

孟鲁司特钠作为支气管哮喘和过敏性鼻炎的治疗药物，孟鲁司特钠已经实现了与美国药典和欧洲药典之间的统一。本稿中使用“Prominence-i”和“Nexera-i MT”，对遵循了日本药局方的孟鲁司特钠进行了系统适用性试验。

Analysis of cathode raw materials for Li-ion batteries by Agilent 5900 ICP-OES

Abstract：Pseudostellarin B (cyclic peptide) was isolated and purified from the herbs of Pseudostellaria heterophylla (Miq.) Pax for the first time by high-speed counter-current chromatography (HSCCC) using a two-phase solvent system consisting of n-butanol–ethyl acetate–water (0.6:4.4:5,v/v).The technique can isolate mg levels of the target compound per run with purity better than 96%. The chemical structure of the compound has been positively confirmed by electrospray ionization time of flight (TOF) MS,H-NMR,C-NMR and H-C COSY analyses.

免疫酶技术(immunoenzymatic technique)分析方式的改进

依照美国药典方法，用YMC-Pack Ph苯基柱（规格：3.0× 100mm,5μ m）测定孟鲁司特钠片的含量（含量均匀度、溶出度），系统适应性试验结果符合规定。

本文使用岛津三重四极杆液质联用系统建立了一种测定饲料中尼卡巴嗪残留量的方法。该方法可以在8 min内完成样品的分析检测，尼卡巴嗪在0.04~50 ng/mL浓度范围内均具有较好的线性关系，线性相关系数大于0.9996，各校准点准确度为97.1~106.0，所有组分保留时间和峰面积的相对标准偏差分别在0.055~0.075%和0.656~1.339%之间，加标回收率在87.3%~98.8%之间。尼卡巴嗪残留物的LOD为0.01 ng/mL，LOQ为0.02 ng/mL，满足GB/T 19423-2020《饲料中尼卡巴嗪的测定 液相色谱-质谱联用法》规定要求。该方法操作简捷、灵敏度高、分析速度快，满足饲料中尼卡巴嗪残留物的定性定量分析。

AbstractAn organic–inorganic poly(3,4-ethylenedioxy-thiophene) (PEDOT)/RuO2xH2O nanocomposite (approxi-mately 1 wt.% RuO2) has been successfully prepared for the first time under microwave irradiation within 5 min with power 900 W via in situ chemical polymerization. The morphology and structure of the resultant material is characterized by transmission electron microscope and Fourier transform infrared. Moreover, the electrochemical properties of the synthesized nanocomposite can be controlled by adjusting the annealing temperature, which is definitely illustrated by cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectra. Electrochemical data have shown that the PEDOT/RuO2xH2O nanocomposite annealed at 150 °C possesses the most favorable charge/discharge ability with a specific capacitance of 153.3 F g?1at a current density of 150 mA g?1 and the high efficient utilization of PEDOT at various current densities. Furthermore, such composite has a less capacitance degradation of 23.8% after 1,000 continuous cycles. The improved electrochemical performance are mainly attributed to the large electroactive surface of nanocomposite and the existence of amorphous RuO2xH2O particles as well as a synergistic effect of the polymer PEDOT and annealed RuO2xH2O. Thus, the PEDOT/RuO2xH2O nanocomposite annealed at 150 °C can act as a promising electroactive material for supercapacitor application

An RSLC-MS/MS method for quantitative analysis of five ethanolamines was developed and described. By using a mixed-mode analytical column and selective MRM MS/MS detection, this method showed significant improvements over previously reported methods with minimum sample preparation, totalchromatographic resolution, capability of sub-ppb level quantification, and high throughput. Application of this method to the analysis of surface waters was demonstrated and showed no quantifiable amounts above the LRLs. Matrix effects and recovery were evaluated using two surface water matrices and the results indicated better quantitation accuracy for DEA by using an isotope labeled analogue as an internal standard.

Agilent Intelligent System Emulation Technology (ISET) within the Agilent 1290 Infinity II LC facilitates the transfer of methods from Agilent and non-Agilent HPLC and UHPLC systems. This Application Note shows how the 1290 Infinity II LC with ISET emulates the ternary gradient of a Waters Acquity H-Class system for the analysis of peptides. Over 97 % agreement is achieved using the 1290 Infinity II LC with ISET, in contrast to without ISET.

用不同技术同时测量活性污泥絮凝的粒径分布Simultaneous determination of activated sludge floc size distribution by different techniques.