Synthesis and Characterization of Silica-based Two-dimensional Stationary Phase of weak cation-excha

来源 :第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会 | 被引量 : 0次 | 上传用户:wysaccp
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  A kind of "two-dimensional stationary phase (2DSP)" of liquid chromatography was first synthesized, which has the characters of both weak cation-exchange chromatography and hydrophobic interaction chromatography.The 2DSP is composed of four types of groups including three secondary amines, one thiol, two carboxyls, and silane group.The excellent performance of the synthesized stationary phase is attributed to the "groups-groups" dynamic matching, that is, "apolar-apolar", "polar-polar", and "charge-charge" interactions that exist on the contact region between the stationary phase and protein molecules.Only by controlling the salt concentration of the mobile phase of hydrophobic chromatography, five and eight standard proteins can be completely separated under IEC or HIC mode with the single column (2DLC-1C), respectively.It was found that the dynamic adsorption capacity of the stationary phase for lysozyme was 17.27mg/g and 23.79mg/g under IEC and HIC modes, respectively.Furthermore, the mass recovery of several test proteins under the two modes was found to be higher than 96%.The foregoing result indicates that in comparison with conventional weak cation-exchange and hydrophobic interaction chromatography stationary phases, the synthesized 2DSP has a superior performance.
其他文献
中国银行临汾支行,伴随着我国改革开放的步伐,走过了它不平凡的十年。十年前的临汾中行,也就是1985年,它仅仅是一个只有几个人,没有自己的办公场所,没有下属机构网点,没有储
  Traditionally, the process of scouting HPLC methods has been time consuming as well as labor intensive.Meanwhile, the recent popularity of Ultra High Perfor
会议
面对国内的教改持续推进,新中考视角提高了体育教育的地位,展现了体育教育的追求。为了更好地检验新中考对于初中体育n教育的影响,提高初中体育教育有效性。本文将以湖南省的农
辽宁省投资集团公司从 1990年开始参与锦州港的投资建设 ,10年来 ,我们从最初的一个贷款方或者说一个间接参与者成为第四大股东 ,经历了锦州港初期建设、改组改制以及股票上
数学是九年义务教育极为重要的科目,小学数学教育如何有效地进行也是我们研讨的问题.小学是启蒙阶段,因此,对小学生的数学教育不能仅仅用“应试教育”的思想教学,必须结合新
作为喜爱自己这一行的体育教师,最大的痛苦莫过于离开了心爱的操场,离开了天真活泼的孩子们。 临近开学的一天下午,我参加了一场校外篮球比赛,当我高高跳起投篮落地时,不慎
  Poly(methacrylic acid-ethylene glycol dimethacrylate) monolithic capillary and high performance liquid chromatography was applied to analyze 7 parabens, inc
会议
日立公司中央研究实验室与国家广播公司共同进一步发展激光彩色放映。目前的行密度为每帧1125行,较过去高两倍。以氪激光器提供红光,氩激光器提供蓝光和绿光。 Hitachi Cen
在法国国家电信研究中心(CNET),电视大屏幕的研究人员正试图用激光退火解决一个关键的元件问题——制造大的电路列阵。这种列阵将控制电路与图象发生单元结合,从而简化与电
  The Abraham solvation parameter model is a widely used linear solvation energy relationship (LSERs) model, which was developed to theoretically predict the
会议