Experimental evidence of state-selective charge transfer in inductively coupled plasma-atomic emission spectrometry

被引：28

作者：

Chan, GCY ^{[1
]}

Hieftje, GM ^{[1
]}

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2004年 / 59卷 / 07期

关键词：

inductively coupled plasma-atomic emission spectrometry; excitation mechanism; charge transfer; collisional mixing; matrix effect;

D O I：

10.1016/j.sab.2004.05.008

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

State-selective charge-transfer behavior was observed for Fe, Cr, Mn and Cu in inductively coupled plasma (ICP)-atomic emission spectrometry. Charge transfer from At+ to Fe, Cr and Mn is state-selective because of inefficient collisional mixing of the quasiresonant charge-transfer energy levels with nearby levels. This low efficiency is the consequence of differences in electronic configuration of the core electrons. The reason for state-selective charge-transfer behavior to Cu is not clear, although a tentative explanation based on efficiency of intramultiplet and intermultiplet mixing for this special case is offered. (C) 2004 Elsevier B.V. All rights reserved.

引用

收藏

页码：1007 / 1020

页数：14

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