INTERFERENCE BY MINERAL ACIDS IN INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY

被引：51

作者：

YOSHIMURA, E

SUZUKI, H

YAMAZAKI, S

TODA, S

机构：

[1] Department of Agricultural Chemistry, University of Tokyo, Bunkyo-ku, Tokyo 113, 1-1-1, Yayoi

来源：

ANALYST | 1990年 / 115卷 / 02期

关键词：

Inductively coupled plasma atomic emission spectrometry; Mineral acid interference; Plasma temperature;

D O I：

10.1039/an9901500167

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Interferences caused by low concentrations of mineral acids have been investigated in inductively coupled plasma atomic emission spectrometry. There appear to be two mechanisms that lower the emission intensities: the decrease in the excitation temperature and the reduction in the aspiration rate. The former was predominant at lower concentrations of mineral acids (≤ M) and the latter became influential at higher acid concentrations (≥ M). The excitation temperature was found to decrease in the presence of mineral acids. The decreases in emission intensities were in fair agreement with those estimated from the decreases in excitation temperature.

引用

页码：167 / 171

页数：5

共 15 条

[1] ELECTRONIC EXCITATION AND IONIZATION TEMPERATURE-MEASUREMENTS IN A HIGH-FREQUENCY INDUCTIVELY COUPLED ARGON PLASMA SOURCE AND THE INFLUENCE OF WATER-VAPOR ON PLASMA PARAMETERS [J].