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
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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
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发表时间:
2014
期刊:
影响因子:
2.9
通讯作者:
D. Belder
中科院分区:
文献类型:
--
作者:
F. Schwarzkopf;T. Scholl;S. Ohla;D. Belder
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.
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影响因子:
7.4
作者:
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通讯作者:
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影响因子:
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作者:
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Lee, TD
DOI:
--
发表时间:
2009
期刊:
In Analysis
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Smith, Richard D.
DOI:
--
发表时间:
2005
期刊:
影响因子:
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作者:
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