ELECTRICALLY DRIVEN OPEN-TUBULAR LIQUID-CHROMATOGRAPHY

被引：102

作者：

BRUIN, GJM

TOCK, PPH

KRAAK, JC

POPPE, H

机构：

[1] Laboratory for Analytical Chemistry, University of Amsterdam, 1018 WV Amsterdam

来源：

JOURNAL OF CHROMATOGRAPHY | 1990年 / 517卷

关键词：

D O I：

10.1016/S0021-9673(01)95747-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Electrically driven (ED), as opposed to pressure-driven (PD), open-tubular liquid chromatography (OTLC) was evaluated for different types of open-tubular columns, with inner diameters in the range 5-25 μm. The efficiency of ED-OTLC was found to be better than that of PD-OTLC by a factor of ca. 2, in agreement with theory. Injection of the sample in ED-OTLC by electromigration appears to be much simpler than that with the split-injection procedures in PD-OTLC. Electroosmotic mobility was found to depend little on the application of an ODS coating.With the mobile phase used at 60 000 V/m, the maximum linear velocity was 1.4 mm/s. The potential of ED-OTLC in 10-25 μm I.D. capillaries is demonstrated. © 1990.

引用

页码：557 / 572

页数：16

共 45 条

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