CHARACTERIZATION OF A LOW-PRESSURE MICROVOLUME PLASMA EMISSION DETECTOR FOR GAS-CHROMATOGRAPHY

被引：7

作者：

KLEMP, M ^{[1
]}

PUIG, L ^{[1
]}

TRIVEDI, K ^{[1
]}

SACKS, R ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109

来源：

JOURNAL OF CHROMATOGRAPHIC SCIENCE | 1992年 / 30卷 / 04期

关键词：

D O I：

10.1093/chromsci/30.4.136

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A hollow-cathode glow discharge device for element-selective gas chromatography detection is evaluated. The device is used with a vacuum-outlet GC for the plasma emission detection of some nonmetallic elements. The GC column passes directly into the hollow cathode cavity. The cavity volume is about 10 jiL. The device is operated in a pressure range of about 10 to 100 Torr with plasma currents from 15 to 150 mA. Polymer formation occurs in the cathode cavity during passage of large quantities of solvent. Strategies for controlling these processes are discussed. When used for high speed GC detection, some tailing is observed, particularly for fluorinated compounds. The effects of electrode geometry, plasma current, and plasma pressure on relative emission intensities and detector band shapes are described for the element selective detection of F-containing compounds. © Oxford University Press 1992.

引用

页码：136 / 141

页数：6

共 22 条

[1] CAVITY FOR MICROWAVE-INDUCED PLASMAS OPERATED IN HELIUM AND ARGON AT ATMOSPHERIC-PRESSURE [J].