Stacking from the sample stream in CZE using a pneumatically driven computerized sampler

被引：15

作者：

Kuldvee, R ^{[1
]}

Kaljurand, M ^{[1
]}

机构：

[1] Tallinn Univ Technol, Dept Chem, EE-0026 Tallinn, Estonia

来源：

ANALYTICAL CHEMISTRY | 1998年 / 70卷 / 17期

关键词：

D O I：

10.1021/ac9801115

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

It is demonstrated that a pneumatically driven computerized sampling device for capillary electrophoresis facilitates sample stacking by the head-column field amplification (HCFA) technique. This device utilizes a rapid exchange between buffer and sample in a narrow channel at the separation capillary inlet and makes possible the combination of two classical injection modes-the electrokinetic and hydrodynamic modes. Detection limits obtained were about 9 nM for alkylbenzylamine cations with common UV detection.

引用

页码：3695 / 3698

页数：4

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