INDIUM HYDRIDE GENERATION ATOMIC-ABSORPTION SPECTROMETRY WITH IN-SITU PRECONCENTRATION IN A GRAPHITE-FURNACE COATED WITH PALLADIUM

被引：22

作者：

LIAO, YP ^{[1
]}

LI, AM ^{[1
]}

机构：

[1] BEIJING UNIV,DEPT CHEM,BEIJING 100871,PEOPLES R CHINA

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1993年 / 8卷 / 04期

关键词：

INDIUM HYDRIDE GENERATION; ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY; PALLADIUM MODIFIER; IN-SITU PRECONCENTRATION;

D O I：

10.1039/ja9930800633

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In situ preconcentration of volatile indium hydride into a pre-heated graphite furnace coated with palladium, which was used as both the collection medium and atomizer, greatly improved the sensitivity for the determination of indium by hydride generation atomic absorption spectrometry. Palladium was found to be a very efficient adsorbent for indium hydride. The operating conditions were optimized and X-ray photoelectron spectroscopy was used to characterize the sample deposits on the graphite platform surface. The method is linear up to 50 ng and the characteristic mass for indium was found to be 0.63 ng.

引用

页码：633 / 636

页数：4

共 11 条

[1] DETERMINATION OF INDIUM BY HYDRIDE GENERATION AND ATOMIC-ABSORPTION SPECTROMETRY [J].