其他检测

解决方案

标准解读

推荐厂商:

山东普创工业科技有限公司 paratronix
岛津企业管理(中国)有限公司 岛津
北京易科泰生态技术有限公司 易科泰
德国赛多利斯集团 赛多利斯
labthink安东帕广州明慧IPHASE中仪宇盛仪电分析艾普拜生物PerkinElmer赛诺普中国百欧林来亨科学仪器上海力晶海能技术徕卡显微系统赛默飞色谱与质谱上海塔望智能科技QUANTUM量子科学标乐图拉扬科技安捷伦北京东西分析仪器FLIR青岛众瑞上海科创色谱仪器凯尔测控欧兰科技天美Waters上海卓光彩谱复纳科学仪器仪真分析仪器Cytiva东南科仪Insustrial Physics欧罗拉生物胤煌科技北京隆福佳大昌华嘉普兰德Molecular Devices上海禾工科学仪器TA仪器上海凯来四方仪器ProteinSimple: a Bio-Techne brand艺达思贸易奥盛仪器赛默飞磐合科仪曼森生物广州领拓如海光电上海谓载睿科集团天瑞仪器(Skyray)丹东百特鲲鹏基因意大利VELP公司华大智造尔迪仪器ATAGO 爱拓富尔邦北京祥鹄上海仪电科仪博赛德科技德祥贝克曼库尔特迹亚国际商贸纳谱分析STARLIMS赛成仪器美析仪器山东盛泰仪器申贝科学仪器逸云天电子高麦克普洛帝-专注流体颗粒管控中国格哈特上海沪析奥美泰克盈盛恒泰北京宝云兴业儒亚科技先锋科技布鲁克·道尔顿SHINING 3Dksst摩方精密上海远慕生物科技有限公司高升电子上海衡翼精密仪器可睦电子(KEM)虹科微纳立方江苏摩信鼎蓝科技上海依阳实业
重置
全部品牌

检测项目:

参考标准:

聚N-异丙基丙烯酰胺智能材料中GPC分析检测方案(液相色谱仪)

“Smart materials” are capable of varying their physical properties in response to environmental changes or stimuli. Such stimuli include temperature, pH, solvent composition, and electric field strength. In particular, smart hydrogels, which change their shrinking and swelling characteristics in response to external stimuli, have been studied for use in engineering and biomedical applications, such as controlled drug release. Poly(n-isopropylacrylamide) (PNIPAM) gel is an important smart hydrogel that responds to temperature changes. PNIPAM gels exhibit negative thermosensitivity, meaning that they undergo a significant level of shrinkage with increasing temperature. Precise control over a hydrogel’s shrinking and swelling characteristics is desirable since this may lead to control over its drug release/ uptake properties. Among other important properties that affect the thermosensitivity of PNIPAM, such as particle structure and size, a key characteristic is the molecular weight distribution. The molecular weight distributions of two PNIPAM polymers were accurately measured by means of GPC with online viscometry, allowing application of the universal calibration technique. This method permits an accurate calibration of the GPC system based upon molecular size in solution (using the relationship between the viscosity of the eluting polymer and its molecular weight). This in turn allows accurate molecular weights to be calculated even though the polymer standards used are not chemically identical to the polymer under investigation, as the column is separating on size not molecular weight. As a result, the molecular weight data usually obtained via this technique are very accurate, in contrast to conventional GPC employing a concentration detector only (eg UV, RI), which provides molecular weight data relative to the polymer calibration standards used. The 390-MDS can be used to provide accurate molecular weights for polymers of unusual structure by employing differen
检测样品: 其他
检测项: GPC分析

安捷伦科技(中国)有限公司

查看联系电话
前往展位
< 1 ··· 7 8 9 10 11 ··· 28 > 前往 GO

仪器信息网行业应用栏目为您提供825篇其他检测方案,可分别用于物理指标检测、生化检验检测、遗传检测、前处理检测、机械性能检测,参考标准主要有等