Improving sensitivity in microchip electrophoresis coupled to ESI‐MS/MS on the example of a cardiac drug mixture

Improving sensitivity in microchip electrophoresis coupled to ESI‐MS/MS on the example of a cardiac drug mixture
复制标题

以心脏药物混合物为例,提高微芯片电泳与 ESIâMS/MS 联用的灵敏度

DOI:
10.1002/elps.201300615
复制
发表时间:
2014
期刊:
影响因子:
2.9
通讯作者:
D. Belder
D. Belder
中科院分区:
生物学3区
文献类型:
--
作者:
F. Schwarzkopf;T. Scholl;S. Ohla;D. Belder

文献摘要

参考文献

被引文献

相似文献

本文提出了一种基于质谱学检测的MCE灵敏度优化方法。以普萘洛尔、比索洛尔、利多卡因、普鲁卡因为研究对象,研究了不同芯片布局和实验参数对MS检测灵敏度的影响,以期获得较高的MS检测灵敏度和良好的芯片分离效果。一个重要的方面是比较包含各种鞘流道的微流控布局与避免芯片上的鞘流结的微流控布局。我们使用了带有单片集成纳米射线发射极尖端的玻璃芯片,该芯片与运行在碎裂模式(MSN)下的IT质谱仪无死体积耦合。在此条件下,模型化合物普萘洛尔的检出限可降至0.6 ng/mL。
A comprehensive study for a sensitivity optimization in MCE with mass spectrometric detection is presented. As a text mixture, we chose a mixture of the cardiac drugs propranolol, bisoprolol, lidocaine, procaine and studied the effect of different chip layouts and experimental parameters with the aim of achieving both high sensitivity in MS detection and adequate chip electrophoretic separation. An important aspect was a comparison of microfluidic layouts containing various sheath‐flow channels with that avoiding sheath‐flow junctions on‐chip. We utilized glass chips with monolithically integrated nanospray emitter tips coupled dead volume‐free to an IT mass spectrometer running in fragmentation mode (MSn). With this setup, detection limits down to 0.6 ng/mL for the model compound propranolol were achieved.
DOI: 10.1021/ac800428w
发表时间: 2008-09-15
影响因子: 7.4
作者:
Mellors, J. S.;Gorbounov, V.;Ramsey, R. S.;Ramsey, J. M.
通讯作者: Ramsey, J. M.
DOI: 10.1021/ac990967p
发表时间: 2000-01-15
影响因子: 7.4
作者:
Licklider, L;Wang, XQ;Lee, TD
通讯作者: Lee, TD
功能性电喷雾发射器。
DOI: --
发表时间: 2009
期刊: In Analysis
影响因子: --
作者:
M. Prudent;H. Girault
通讯作者: H. Girault
DOI: 10.1021/ac061133r
发表时间: 2006-11-15
影响因子: 7.4
作者:
Kelly, Ryan T.;Page, Jason S.;Smith, Richard D.
通讯作者: Smith, Richard D.
DOI: --
发表时间: 2005
期刊:
影响因子: --
作者:
S. Arscott;S. Gac;C. Rolando
通讯作者: C. Rolando