Inelastic collisional deactivation in plasma-related non-spectroscopic matrix interferences in inductively coupled plasma atomic emission spectrometry

被引：10

作者：

Al-Ammar, AS ^{[1
]}

Barnes, RM ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1999年 / 54卷 / 07期

关键词：

matrix effects; inductively coupled plasma; inelastic collisional deactivation;

D O I：

10.1016/S0584-8547(99)00046-4

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Inelastic collisional deactivation of the analyte excited state is demonstrated as a dominant cause for non-spectroscopic matrix interference in inductively coupled plasma atomic emission spectrometry (ICP-AES) for commonly used plasma operating conditions in routine analysis. A mathematical simulation of the inelastic collisional model was examined. Comparison between the theoretical model and experimental results using atomic and ionic lines of the analytes Zn, Ba, Mg, Mn and Sr validates the inelastic collisional deactivation model as a dominant cause for non-spectroscopic matrix effect. Matrices evaluated were NH4Cl, NH4SCN, (NH4)(2)SO4, and H2SO4 to represent difficult-to-ionize matrices (DIE) and NaCl and CaCl2 to represent easy-to-ionize element matrices (EIE). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1063 / 1076

页数：14

共 36 条

[1] Correction for non-spectroscopic matrix effects in inductively coupled plasma-atomic emission spectroscopy by internal standardization using spectral lines of the same analyte [J].