Analytical performance of arsenic and selenium boasted hollow cathode lamps

被引：1

作者：

Bezur, L ^{[1
]}

机构：

[1] Tech Univ Budapest, Inst Gen & Analyt Chem, H-1521 Budapest, Hungary

来源：

MICROCHEMICAL JOURNAL | 1998年 / 59卷 / 01期

关键词：

D O I：

10.1006/mchj.1998.1569

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The intensity and overall analytical performance of arsenic, selenium, and a number of other hollow cathode lamps (HCLs) are not good enough in many atomic absorption instruments. As a possible replacement for HCLs, arsenic and selenium high-intensity boosted hollow cathode lamps (BHCLs) were studied. The main operating parameters of BHCLs and the construction of a boosted lamp power supply are described. The intensity characteristics of HCLs and BHCLs and the calibration curves under different conditions are compared to characterize the analytical performance of the lamps studied. Intensity ratios (I-BHCL/I-HCL) of 18 and 4 were calculated for arsenic and selenium. The slope of the calibration curves improved 30% with the use of BHCLs for both elements. (C) 1998 Academic Press.

引用

页码：107 / 116

页数：10