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Quantitative sample injection for capillary electrophoresis

✍ Scribed by Chuanyi Yao; Ruyu Gao; Chao Yan

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
194 KB
Volume
26
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

An apparatus including a rotary‐type injector was designed for quantitative sample injection in capillary electrophoresis (CE), in which both pressurized flow and electroosmotic flow were used to drive the background electrolyte solution. A relative standard deviation of peak area of lower than 1% was achieved by using this apparatus. The effects of back‐pressure regulator, restrictor, and applied voltage on separation efficiency and resolution were investigated. The utility of this apparatus in both micro‐HPLC and pressurized capillary electrochromatography (pCEC) was also demonstrated.

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