解读2020药典比表面积新增章节 这些仪器五星标注
p style="text-indent: 2em "span style="font-family: 宋体 text-align: justify text-indent: 32px "2020版《中国药典》将于/spanspan style="text-align: justify text-indent: 32px font-family: Calibri "2020/spanspan style="font-family: 宋体 text-align: justify text-indent: 32px "年/spanspan style="text-align: justify text-indent: 32px font-family: Calibri "2/spanspan style="font-family: 宋体 text-align: justify text-indent: 32px "月/spanspan style="text-align: justify text-indent: 32px font-family: Calibri "1/spanspan style="font-family: 宋体 text-align: justify text-indent: 32px "日正式实施,其中新增了比表面积测定法的章节。本文将就这一新变及所涉及的检测方法和仪器与各位读者朋友探讨分享。/span/ph1 label="标题居中" style="font-size: 32px font-weight: bold border-bottom: 2px solid rgb(204, 204, 204) padding: 0px 4px 0px 0px text-align: center margin: 0px 0px 20px "span style="font-size: 18px color: rgb(0, 176, 80) "strongspan style="font-size: 18px font-family: 宋体 "为什么中国药典要新增比表面积测定法的章节?/span/strong/span/h1p style="text-indent:32px text-align:justify text-justify:inter-ideograph"strongspan style="font-size: 16px font-family: 宋体 "首先/span/strongspan style="font-size: 16px font-family: 宋体 ",比表面积是粉体药用辅料的一项重要功能性指标。无论是药品生产链上净化、加工、混合、制片、包装等环节,还是研发上的有效期、溶解速率、药效等方面都与比表面积息息相关。药用稀释剂、粘合剂、润滑剂、助流剂、抗结块剂等都需要关注比表面积功能性指标。/span/pp style="text-indent:32px text-align:justify text-justify:inter-ideograph"span style="font-family: 宋体 font-size: 16px"span style="font-family:宋体"例如在预防和治疗疾病方面具有巨大潜力的药物缓释研究就经常用到多孔材料,如/spanCOFSspan style="font-family:宋体"材料就是一种具有药物负载及缓释效果的材料,适当地提升该材料比表面和孔容,就有可能在确保良好药物缓释性能的前提下,提升其载药量。/span/span/pp style="text-indent:32px text-align:justify text-justify:inter-ideograph"strongspan style="font-size: 16px font-family: 宋体 "其次/span/strongspan style="font-family: 宋体 font-size: 16px"span style="font-family:宋体",药典新增比表面积测定方法也是与国际接轨的需要。虽然此前版本的中国药典并未收录比表面积的测定方法,但在欧美发达国家,相关药典早已有所收录。如《美国药典》/spanUSP41-NF36span style="font-family:宋体"、《欧洲药典》/spanspan style="font-family:Calibri"EP9.0/spanspan style="font-family:宋体"、《英国药典》/spanspan style="font-family:Calibri"BP2018/spanspan style="font-family:宋体"、《日本药典》/spanspan style="font-family:Calibri"JP17/spanspan style="font-family:宋体"均已收载比表面积测定法。/span/span/pp style="text-indent:32px text-align:justify text-justify:inter-ideograph"span style="font-size: 16px font-family: 宋体 "如今《中国药典》也被世界卫生组织列为制定《国际药典》的主要参考之一,收录比表面积测定法,也更有助于我国制药领域同行在研发生产、质量评价、标准制定等活动中与国际接轨。/span/ph1 label="标题居中" style="font-size: 32px font-weight: bold border-bottom: 2px solid rgb(204, 204, 204) padding: 0px 4px 0px 0px text-align: center margin: 0px 0px 20px "span style="color: rgb(0, 176, 80) font-size: 18px "strongspan style="color: rgb(0, 176, 80) font-family: 宋体 "2020span style="color: rgb(0, 176, 80) font-family: 宋体 "药典比表面积测定法与国外主流药典有何异同?/span/span/strong/span/h1p style="text-indent:32px"span style=" font-family:宋体 font-size:16px"span style="font-family:宋体"气体吸附法是测定材料比表面积的主流方法之一,也是欧、美、日药典测量比表面积的主流方法之一。而/span2020span style="font-family:宋体"版《中国药典》收载的比表面积测定方法也是气体吸附法。具体而言与国外药典相比有以下异同:/span/span/ptable border="1" cellspacing="0" style="border: none" align="center"tbodytr class="firstRow"td width="140" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "br//tdtd width="238" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pstrongspan style="font-family: 宋体 font-size: 16px"国外主流药典内容/span/strongstrong/strong/p/tdtd width="189" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pstrongspan style="font-family: 宋体 font-size: 16px"2020span style="font-family:宋体"版中国药典变化/span/span/strongstrong/strong/p/td/trtrtd width="140" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"方法介绍与原理/span/p/tdtd width="238" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style="font-family:宋体 font-size:16px"1. BETspan style="font-family:宋体"方程及原理介绍/span/span/ppspan style="font-family:宋体 font-size:16px"2. 多点方式测定/span/ppspan style="font-family:宋体 font-size:16px"3. 单点方式测定/span/p/tdtd width="189" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"与国外主流药典一致/span/p/td/trtrtd width="140" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"供试品的处理与技术要求/span/p/tdtd width="238" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style="font-family:宋体 font-size:16px"1. 供试品的脱气处理/span/ppspan style="font-family:宋体 font-size:16px"2. 吸附质/span/ppspan style="font-family:宋体 font-size:16px"3. 取样量/span/p/tdtd width="189" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style="font-family:宋体 font-size:16px"1. 新增了对吸附质纯度的要求/span/ppspan style="font-family:宋体 font-size:16px"2. 缺少少标准物质列表/span/ppspan style="font-family:宋体 font-size:16px"3. 其余内容一致/span/p/td/trtrtd width="140" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"测定方法/span/p/tdtd width="238" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style="font-family:宋体 font-size:16px"1. 第一法:动态流动法/span/ppspan style="font-family:宋体 font-size:16px"2. 第二法:容量法/span/p/tdtd width="189" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"与国外主流药典一致/span/p/td/trtrtd width="140" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"仪器校准/span/p/tdtd width="238" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"用标准物质定期校准/span/p/tdtd width="189" valign="top" style="border: 1px solid rgb(0, 0, 0) padding: 5px "pspan style=" font-family:宋体 font-size:16px"与国外主流药典一致/span/p/td/tr/tbody/tablep style="text-align: justify text-indent: 2em "span style=" font-family:宋体 font-size:16px"span style="font-family:宋体"这其中/span2020span style="font-family:宋体"版《中国药典》相比于国外最独特之处,就在于新增了对吸附质纯度的要求。/span/spanspan style="font-family: 宋体 "吸附质即在测定温度下,被供试品表面吸附的气体。常用的吸附质主要有氦气和氪气。/spanspan style="color: rgb(0, 176, 240) "strongspan style="font-family: 宋体 "2020版《中国药典》规定:选用的吸附质必须干燥,且纯度不小于span style="font-family: Calibri "99.99%/span/span/strong/spanspan style="font-family: 宋体 color: rgb(0, 0, 0) "。/span/ph1 label="标题居中" style="font-size: 32px font-weight: bold border-bottom: 2px solid rgb(204, 204, 204) padding: 0px 4px 0px 0px text-align: center margin: 0px 0px 20px "span style="font-size: 18px color: rgb(0, 176, 80) "strongspan style="font-size: 18px font-family: 宋体 "两种新增表面测试方法解析/span/strong/span/h1p style="text-indent:32px text-align:justify text-justify:inter-ideograph"span style="font-family: 宋体 font-size: 16px"span style="font-family:宋体"目前气体吸附原理的比表面积测定法主要有三种,动态流动法、静态容量法和重量法,这三种方法都收录于《/spanGB/T19587-2017span style="font-family:宋体"—/spanspan style="font-family:Calibri"ISO9277:2010/spanspan style="font-family:宋体"气体吸附/spanspan style="font-family:Calibri"BET/spanspan style="font-family:宋体"法测定固态物质比表面积》中。国外主流药典只收载了前两种方法,/spanspan style="font-family:Calibri"2020/spanspan style="font-family:宋体"版《中国药典》也与国外药典相同,目前只收载了动态流动法和容量法。/span/span/pp style="text-indent:32px text-align:justify text-justify:inter-ideograph"strongspan style="font-size: 16px font-family: 宋体 "动态流动法:/span/strongspan style="font-size: 16px font-family: 宋体 "即连续流动色谱法,精密量取一定量的吸附质注入检测系统,记录色谱峰,计算单位体积吸附质对应峰面积的大小,再将span style="font-family: 宋体 text-align: justify text-indent: 32px "装有供试品的样品管侵入杜瓦瓶的液氮中,进行吸脱附处理,得到脱附峰,记录峰面积,根据单位体所对应的峰面积大小,计算供试品对吸附质的吸附量,按BET方程作图并计算得到供试品的比表面积。/span/span/pp style="text-align:center"img style="max-width:100% max-height:100% " src="https://img1.17img.cn/17img/images/202007/uepic/111c6470-5763-4ddb-b8ee-b0a3bbea06b3.jpg" title="图片1.jpg" alt="图片1.jpg"//pp style="text-indent:32px text-align:justify text-justify:inter-ideograph"strongspan style="font-size: 16px font-family: 宋体 "静态容量法:/span/strongspan style="font-size: 16px font-family: 宋体 "在一个密闭的真空系统中,供试样置于液氮杜瓦瓶中,改变样品管总氮气压力,使样品在不同的氮气压力下吸附氮气至饱和,用精密压力传感器测出样品吸附前后样品室中氮气压力的变化,再根据气体状态方程计算出气体的吸附量,可以按阶梯顺序测出吸脱附等温线,进而进行比表面计算或孔径分析。/span/pp style="text-align:center"img style="max-width:100% max-height:100% " src="https://img1.17img.cn/17img/images/202007/uepic/4ecebb10-5db7-44e9-9e48-a6fde8326384.jpg" title="图片2.jpg" alt="图片2.jpg"//pp style="text-align:justify text-justify:inter-ideograph"span style=" font-family:宋体 font-size:16px" /spanbr//pp style="text-indent:32px text-align:justify text-justify:inter-ideograph"span style="font-size: 16px font-family: 宋体 "动态流动法与静态容量法的区别如下表所示:/span/ptable border="1" cellspacing="0" style="margin-left: 7px border: none " align="center"tbodytr class="firstRow"td valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"br//tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"动态色谱法/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"静态容量法/span/strongstrong/strong/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"测试功能/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"比表面/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"比表面,孔径分布/span/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"吸附质/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"氮气、氪气/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style=" font-family:宋体 font-size:16px"气体(常用氮气,2020版药典中规定,在比表面测试中,本法仅使用纯度不小于99.99%的纯吸附质而非混合气体)/span/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"优缺点/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"优点是:分析速度快,准确度好,分辨率高,尤其针对中小比表面样品,如电池材料、有机材料、金属粉体等,比表面分析下限低,重复性高。 br/缺点是:由于分压范围低、不能测试真正的脱附等温线等限制,不适合做孔径分析。/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"优点是:适合比表面及孔径分析,分辨率、准确度高,适合催化剂、分子筛等多孔、比表面较大样品的比表面及孔径分布分析测试。 br/缺点是:相对于动态法测量比表面积速度偏慢。/span/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"测试范围/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"分压:5%~95%, br/比表面0.01m2/g以上/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"分压:0.0001% ~ 99.6%,br/对应孔径范围0.35-500nm, br/比表面0.01m2/g以上/span/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"测试耗时/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"参比法比表面,15min/3个样品; br/单点BET比表面20-30min/4个样品; br/5点BET比表面约120min/4个样品。/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"单个分压点约3-10min; br/5点BET比表面约20-40min; br/40个吸附脱附点约3-10小时。/span/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"是否需要抽真空/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="color:#333333 font-family:宋体"否/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"是/span/p/td/trtrtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="32"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"strongspan style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"平衡模式/span/strongstrong/strong/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="296"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"流动态的相对平衡/span/p/tdtd valign="center" style="background: rgb(255, 255, 255) border: 1px solid windowtext padding: 5px " width="295"p style="margin-top:0 margin-right:0 margin-bottom:10px margin-left:0"span style="font-family: 宋体 color: rgb(51, 51, 51) letter-spacing: 0 font-size: 16px"一定体积内的静态平衡/span/p/td/tr/tbody/tablep style=" text-align:center"span style="font-size: 14px font-family: 宋体 "(对比表来源自网络)/span/ph1 label="标题居中" style="font-size: 32px font-weight: bold border-bottom: 2px solid rgb(204, 204, 204) padding: 0px 4px 0px 0px text-align: center margin: 0px 0px 20px "span style="color: rgb(0, 176, 80) font-size: 18px "strongspan style="color: rgb(0, 176, 80) font-family: 宋体 "从新版药典看仪器:这些品牌值得关注/span/strong/span/h1p style="text-indent: 28px text-align: justify "span style="font-family: 宋体 font-size: 16px "《中国药典》是国家药品标准的重要组成部分,是国家药品标准体系的核心。随着2020版《中国药典》新增了比表面测定的章节,比表面积分析仪势必将在制药行业得到更多的应用。仪器信息网为大家推荐几款符合新版药典规定的优质比表面积分析仪器,供大家参考:/span/pp style="text-align: center text-indent: 0em "a href="https://www.instrument.com.cn/netshow/SH100710/C73679.htm" target="_self" style="text-decoration: underline "span style="color: rgb(0, 176, 240) "strong精微高博JWGB=BK222 双站全自动比表面积测试仪/strongstrong/strong/span/a/pp style="text-indent: 0em text-align: center "a href="https://www.instrument.com.cn/netshow/SH100710/C73679.htm" target="_self" style="text-decoration: underline "span style="color: rgb(0, 176, 240) "strong(点击了解仪器更多详情及解决方案)/strongstrong/strong/span/a/pp style="text-align:center"strongimg style="max-width:100% max-height:100% " src="https://img1.17img.cn/17img/images/202007/uepic/d9d71b4d-fe56-4e5b-aa63-76dcc76b1ac5.jpg" title="精微高博JWGB.jpg" alt="精微高博JWGB.jpg"//strong/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "产地:/span/strongspan style="font-family: 宋体, SimSun "中国/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "测试方法:/span/strongspan style="font-family: 宋体, SimSun "静态容量法/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "测试范围:/span/strongspan style="font-family: 宋体, SimSun "比表面积0.01m2/g至无上限/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "参考价位:/span/strongspan style="font-family: 宋体, SimSun "10-15万/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "亮点拾遗:/span/strongspan style="font-family: 宋体, SimSun "完全独立两站并列分析,可同时进行两个样品的孔径分析,测试效率高;两个同位脱气站,脱气温度可达400℃;采用液氮面控制综合系统及软件补偿技术,确保整个测试过程中样品室非均匀温度场相对恒定,以确保分析的准确性,适合液氮、液氩、冰水等各种冷浴。(该公司另有动态流动法JW-DX等相关仪器提供)/span/pp style="text-align:center"span style="text-decoration: underline font-size: 16px font-family: 宋体, SimSun color: rgb(0, 176, 240) "strongspan style="font-family: 宋体, SimSun font-size: 16px text-decoration: underline "麦克仪器/span/strong/spanspan style="text-decoration: underline color: rgb(0, 176, 240) font-family: 宋体, SimSun font-size: 16px "strongspan style="text-decoration: underline font-family: Calibri color: rgb(0, 0, 255) "/span/strongstrongspan style="font-family: Calibri color: rgb(0, 0, 255) "a href="https://www.instrument.com.cn/netshow/C163225.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-family: 宋体, SimSun font-size: 16px "Gemini VIIspan style="color: rgb(0, 176, 240) font-family: 宋体 "全自动比表面积与孔隙度分析仪/span/a/span/stronga href="https://www.instrument.com.cn/netshow/C163225.htm" target="_self"strong/strong/a/span/pp style="text-align:center"a href="https://www.instrument.com.cn/netshow/C163225.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-family: 宋体, SimSun font-size: 16px "span style="color: rgb(0, 176, 240) font-family: 宋体, SimSun font-size: 16px "strongspan style="font-size: 14px color: rgb(0, 176, 240) font-family: 宋体 "(/span/strongstrongspan style="font-size: 14px color: rgb(0, 176, 240) font-family: 宋体 "点击了解仪器更多详情及解决方案/span/strongstrongspan style="font-size: 14px color: rgb(0, 176, 240) font-family: 宋体 ")/span/strong/span/aspan style="font-size: 16px "strong/strong/span/pp style="text-align:center"img style="max-width: 100% max-height: 100% width: 300px height: 300px " src="https://img1.17img.cn/17img/images/202007/uepic/9504cccb-7abe-4f5e-a30a-60513dbe06f6.jpg" title="Gemini VII全自动比表面积与孔隙度分析仪.jpg" alt="Gemini VII全自动比表面积与孔隙度分析仪.jpg" width="300" height="300" border="0" vspace="0"/span style="font-family: 宋体 font-size: 16px " /span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "产地:/span/strongspan style="font-family: 宋体, SimSun "美国/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "测试方法:/span/strongspan style="font-family: 宋体, SimSun "静态容量法/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "测试范围:/span/strongspan style="font-family: 宋体, SimSun "比表面积0.01m2/g-无上限/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "参考价位:/span/strongspan style="font-family: 宋体, SimSun "30-50万/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "亮点拾遗:/span/strongspan style="font-family: 宋体, SimSun "采用创新设计,保证样品管和平衡管、样品和参比蓄气池和与他们关联的管路所处条件完全相同。在分析过程中,蓄气池之间的压力差被监控。这种共有模式保证任何压力差完全是由于样品吸附造成,而不是在分析过程中自由空间的变化造成。(该公司另有动态流动法仪器提供)/span/pp style="text-align: center text-indent: 0em "a href="https://www.instrument.com.cn/netshow/C27765.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="font-family: Calibri color: rgb(0, 0, 255) font-size: 14px "span style="font-size: 16px color: rgb(0, 176, 240) font-family: 宋体 "安东帕康塔全自动比表面和孔径分布分析仪/spanAutosorb-iQ/span/strongstrong/strong/span/a/pp style="text-align: center text-indent: 0em "a href="https://www.instrument.com.cn/netshow/C27765.htm" target="_self" style="font-size: 16px text-decoration: underline "span style="font-size: 16px "span style="font-size: 16px color: rgb(0, 176, 240) "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "(/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "点击了解仪器更多详情及解决方案/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 ")/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "/span/strong/spanstrong/strong/span/a/pp style="text-indent:28px text-align:center"img style="max-width: 100% max-height: 100% width: 300px height: 300px " src="https://img1.17img.cn/17img/images/202007/uepic/a2bc4892-18ef-4323-8ccb-3a3f2102cc91.jpg" title="康塔Autosorb-iQ.jpg" alt="康塔Autosorb-iQ.jpg" width="300" height="300" border="0" vspace="0"/span style="font-size: 16px "strongspan style="font-family: 宋体 color: rgb(0, 0, 255) font-size: 14px " /span/strong/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "产地:/span/strongspan style="font-family: 宋体, SimSun "奥地利/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "测试方法:/span/strongspan style="font-family: 宋体, SimSun "静态容量法/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "测试范围:/span/strongspan style="font-family: 宋体, SimSun "比表面积0.0005m2/g至无上限/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "参考价位:/span/strongspan style="font-family: 宋体, SimSun "50-100万/span/pp style="text-indent: 2em text-align: justify "strongspan style="font-family: 宋体, SimSun "亮点拾遗:/span/strongspan style="font-family: 宋体, SimSun "在原有的单站分析系统之上另外配置了一套分析系统,也就是说又增加了一套高精度的压力传感分析组件,包含1 个1000torr、一个10torr 和一个1torr 的压力传感器。即压力传感器的个数增加到了8 个。(该公司另有动态流动法仪器提供)/span/pp style="text-align: center text-indent: 0em "a href="https://www.instrument.com.cn/netshow/C311273.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="font-size: 16px "span style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "麦奇克拜尔/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "/span/strong/spanspan style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "/span/strongstrongspan style="font-family: 宋体 color: rgb(0, 0, 255) font-size: 14px "span style="font-size: 16px color: rgb(0, 176, 240) font-family: 宋体 "全自动比表面积及孔径分布测定仪/spanspan style="text-decoration: underline font-family: 宋体 color: rgb(0, 0, 255) font-size: 16px "miniX/span/span/strongstrong/strong/span/span/a/pp style="text-align: center text-indent: 0em "a href="https://www.instrument.com.cn/netshow/C311273.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "(/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "点击了解仪器更多详情及解决方案/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 ")/span/strong/span/aspan style="font-size: 16px "strong/strong/span/pp style="text-align:center"img style="max-width: 100% max-height: 100% width: 300px height: 300px " src="https://img1.17img.cn/17img/images/202007/uepic/375fedcd-8376-4c95-a5be-4c05bf173c84.jpg" title="拜尔minx.jpg" alt="拜尔minx.jpg" width="300" height="300" border="0" vspace="0"//pp style="text-align: justify text-indent: 2em "strongspan style="font-family: 宋体, SimSun "产地:/span/strongspan style="font-family: 宋体, SimSun "日本/span/pp style="text-align: justify text-indent: 2em "strongspan style="font-family: 宋体, SimSun "测试方法:/span/strongspan style="font-family: 宋体, SimSun "静态容量法/span/pp style="text-align: justify text-indent: 2em "strongspan style="font-family: 宋体, SimSun "测试范围:/span/strongspan style="font-family: 宋体, SimSun "比表面积0.01m2/g-无上限/span/pp style="text-align: justify text-indent: 2em "strongspan style="font-family: 宋体, SimSun "参考价位:/span/strongspan style="font-family: 宋体, SimSun "50万-100万/span/pp style="text-align: justify text-indent: 2em "strongspan style="font-family: 宋体, SimSun "亮点拾遗:/span/strongspan style="font-family: 宋体, SimSun "配备了 GDO* 功能:基于从以前的样品测量所得到的吸附等温线数据获取最优化的进气量进行快速测量。并采用先进的自由空间测量技术(AFSM™ ) 提高了测量精度和再现性。(该公司另有动态流动法仪器提供)/span/pp style="text-align:center"a href="https://www.instrument.com.cn/netshow/SH101602/" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "贝士德/span/strongstrongspan style="font-family: 宋体 color: rgb(0, 0, 255) font-size: 14px "BSD-BET400 span style="font-size: 16px color: rgb(0, 176, 240) font-family: 宋体 "全自动快速比表面积仪/span/span/strongstrong/strong/span/a/pp style="text-align:center"a href="https://www.instrument.com.cn/netshow/SH101602/" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "(/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "点击了解贝士德更多详情及解决方案/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 ")/span/strong/span/a/pp style="text-align:center"img style="max-width: 100% max-height: 100% width: 300px height: 365px " src="https://img1.17img.cn/17img/images/202007/uepic/ae60ba84-0117-4179-bd35-37d7191f14fa.jpg" title="贝士德 BSD-BET400_看图王.jpg" alt="贝士德 BSD-BET400_看图王.jpg" width="300" height="365" border="0" vspace="0"/span style="font-size: 16px "span style="font-family: 宋体 font-size: 16px " /spanspan style="font-size: 16px font-family: 宋体 " /span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "产地:/span/strongspan style="font-family: 宋体 "中国/spanstrong/strong/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "测试方法:/span/strongstrongspan style="font-family: 宋体 "/span/strongspan style="font-family: 宋体 "动态流动法/span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "测试范围:/span/strongstrongspan style="font-family: 宋体 "/span/strongspan style="font-family: 宋体 "比表面积/spanspan style="font-family: Calibri "0.0/spanspan style="font-family: 宋体 "1/spanspan style="font-family: Calibri "m2/g/spanspan style="font-family: 宋体 "至无上限/span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "参考价位:/span/strongspan style="font-family: 宋体 "10-20万/span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "亮点拾遗/span/strongstrongspan style="font-family: 宋体 ":/span/strongspan style="font-family: 宋体 "快速测试,20min/4个样品,高重复性;具有专利的吹风加热功能,保证得到尖锐快速的脱附峰,减少背景误差;具有专利的气体恒温装置,/spanspan style="font-family: Calibri "span style="font-family: 宋体 "使检测器/span10minspan style="font-family: 宋体 "的漂移小于/spanspan style="font-family: Calibri "0.1mV/span/spanspan style="font-family: 宋体 ";具有专利的气体净化冷阱,/spanspan style="font-family: Calibri "span style="font-family: 宋体 "使气体纯度提高/span1span style="font-family: 宋体 "个数量级以上/span/spanspan style="font-family: 宋体 ";具有专利的/spanspan style="font-family: Calibri "Uspan style="font-family: 宋体 "型样品管/spanspan style="font-family: Calibri " /span/spanspan style="font-family: 宋体 ",使得样品管装样方便并不局限于粉末样品测试。/span/span/pp style="text-align: center "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 176, 240) font-family: 宋体 "/span/stronga href="https://www.instrument.com.cn/netshow/C413567.htm" target="_self"strongspan style="font-family: 宋体 color: rgb(0, 0, 255) "理化联科iPore400比表面和孔径分析仪span style="color: rgb(0, 176, 240) font-family: 宋体 "/span/span/strongstrong/strong/a/span/pp style="text-align: center "a href="https://www.instrument.com.cn/netshow/C413567.htm" target="_self"span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "(/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "点击了解仪器更多详情及解决方案/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 ")/span/strong/span/a/pp style="text-align:center"img style="max-width: 100% max-height: 100% width: 300px height: 300px " src="https://img1.17img.cn/17img/images/202007/uepic/79027b11-23ba-452e-af89-5ab9cb289ff0.jpg" title="理化联科iPore600比表面和微孔分析仪.jpg" alt="理化联科iPore600比表面和微孔分析仪.jpg" width="300" height="300" border="0" vspace="0"/span style="font-family: Calibri font-size: 16px " /span/pp style="text-indent: 2em "strongspan style="font-size: 16px font-family: 宋体, SimSun "产地:/span/strongspan style="font-size: 16px font-family: 宋体, SimSun "中国/span/pp style="text-indent: 2em "strongspan style="font-size: 16px font-family: 宋体, SimSun "测试方法:/span/strongspan style="font-size: 16px font-family: 宋体, SimSun "静态容量法/span/pp style="text-indent: 2em "strongspan style="font-size: 16px font-family: 宋体, SimSun "测试范围:/span/strongspan style="font-size: 16px font-family: 宋体, SimSun "比表面积0.005m2/g(氮气)至无上限或0.0005m2/g(氪气)至无上限/span/pp style="text-indent: 2em "strongspan style="font-size: 16px font-family: 宋体, SimSun "参考价位:/span/strongspan style="font-size: 16px font-family: 宋体, SimSun "30-50万/span/pp style="text-indent: 2em "strongspan style="font-size: 16px font-family: 宋体, SimSun "亮点拾遗:/span/strongspan style="font-family: 宋体, SimSun text-indent: 2em "1)控温控压脱气,自动判断脱气终点;2)氮吸附做0.04m2/g的样品可以重复性很好,同样可以得到孔分布数据,不需要氪气,降低了仪器成本;3)一次可以做6个样品,效率高。(该公司另有动态流动法仪器提供)/span/pp style="text-align:center"a href="https://www.instrument.com.cn/netshow/C206328.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "彼奥德/span/strongstrongspan style="font-family: 宋体 color: rgb(0, 0, 255) font-size: 14px "Kubo1200/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "超高速全自动比表面积分析仪/span/strongstrong/strong/span/a/pp style="text-align:center"a href="https://www.instrument.com.cn/netshow/C206328.htm" target="_self" style="text-decoration: underline color: rgb(0, 176, 240) font-size: 16px "span style="color: rgb(0, 176, 240) font-size: 16px "strongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "(/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 "点击了解仪器更多详情及解决方案/span/strongstrongspan style="color: rgb(0, 0, 255) font-size: 14px font-family: 宋体 ")/span/strong/span/aspan style="font-size: 16px "strong/strong/span/pp style="text-align:center"img style="max-width:100% max-height:100% " src="https://img1.17img.cn/17img/images/202007/uepic/49d1afa7-7bc3-4983-b877-efe6c651b8c3.jpg" title="彼奥德kubo1200.jpg" alt="彼奥德kubo1200.jpg"/span style="font-size: 16px "strongspan style="font-family: 宋体 color: rgb(0, 0, 255) font-size: 14px " /span/strong/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "产地:/span/strongspan style="font-family: 宋体 "中国/spanstrong/strong/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "测试方法:/span/strongstrongspan style="font-family: 宋体 "/span/strongspan style="font-family: 宋体 "静态容量法/span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "测试范围:/span/strongstrongspan style="font-family: 宋体 "/span/strongspan style="font-family: 宋体 "比表面积/spanspan style="font-family: Calibri "0.0/spanspan style="font-family: 宋体 "01/spanspan style="font-family: Calibri "m2/g/spanspan style="font-family: 宋体 "至无上限/span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "参考价位:/span/strongstrongspan style="font-family: 宋体 "/span/strongspan style="font-family: 宋体 "span style="font-family: 宋体 "约/span30span style="font-family: 宋体 "万/span/span/span/pp style="text-align: justify text-indent: 2em "span style="font-size: 16px "strongspan style="font-family: 宋体 "亮点拾遗/span/strongstrongspan style="font-family: 宋体 ":/span/strongstrongspan style="font-family: 宋体 "/span/strongspan style="font-family: Calibri "span style="font-family: 宋体 "比表面积分析速度快,可在/span30span style="font-family: 宋体 "分钟内完成/spanspan style="font-family: Calibri "8/spanspan style="font-family: 宋体 "个样品的多点/spanspan style="font-family: Calibri "BET/spanspan style="font-family: 宋体 "测试/span/spanspan style="font-family: 宋体 ",/spanspan style="font-family: Calibri "span style="font-family: 宋体 "配置独立/span8span style="font-family: 宋体 "站式样品制备站(脱气站)/span/spanspan style="font-family: 宋体 "。(该公司另有动态流动法仪器提供)/span/span/pp style="text-indent: 0em text-align: center "strongspan style="font-family: 宋体 letter-spacing: 0px background: rgb(255, 255, 255) font-size: 18px "点击进入/span/stronga href="https://www.instrument.com.cn/zc/191.html" style="font-family: 宋体 letter-spacing: 0px background: rgb(255, 255, 255) text-decoration: underline font-size: 18px color: rgb(0, 176, 240) "span style="color: rgb(0, 176, 240) "strongspan style="font-family: 宋体 color: rgb(0, 0, 255) letter-spacing: 0px background: rgb(255, 255, 255) text-decoration: underline font-size: 18px "比表面及孔径分析仪专场/span/strong/span/astrongspan style="font-family: 宋体 letter-spacing: 0px background: rgb(255, 255, 255) font-size: 18px ",了解更多更全的相关优质仪器/span/strong/p