APPLICATION OF THE HOLLOW-CATHODE DISCHARGE EMISSION SOURCE TO THE DETERMINATION OF NONMETALS IN MICROSAMPLES

被引：38

作者：

CHEN, FY ^{[1
]}

WILLIAMS, JC ^{[1
]}

机构：

[1] MEMPHIS STATE UNIV,DEPT CHEM,MEMPHIS,TN 38152

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 05期

关键词：

D O I：

10.1021/ac00204a013

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of the hollow cathode discharge source for the excitation of nonmetals In volume-limited samples is discussed. The effects of breakdown voltage, fill-gas composition, electrode composition, hollow size, sample deposition mode, current, and fill-gas pressure on the emission signal from phosphorus and chlorine are reported. Instrumentation, operation, and sample preparation procedures are described. Temporal profiles of the emission signal from very small samples deposited in the hollow are given for P, CI, and Se. Detection limits of 9 and 20 pg are reported for P and CI, respectively. © 1990, American Chemical Society. All rights reserved.

引用

页码：489 / 495

页数：7

共 27 条

[1] THE INVESTIGATION OF 2 SAMPLE PREPARATION TECHNIQUES APPLIED TO THE DETERMINATION OF RARE-EARTHS IN SOLUTIONS WITH THE AID OF HOLLOW-CATHODE EXCITATION [J].