Factors affecting analyte transport through the sampling orifice of an inductively coupled plasma mass spectrometer

被引：36

作者：

Macedone, JH ^{[1
]}

Gammon, DJ ^{[1
]}

Farnsworth, PB ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2001年 / 56卷 / 09期

基金：

美国国家科学基金会;

关键词：

inductively coupled plasma mass spectrometry; matrix effects; laser-induced fluorescence; plasma potential; efficiency;

D O I：

10.1016/S0584-8547(01)00262-2

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Laser-excited ionic fluorescence has been used to study the effects of sample matrix, operating conditions, and load coil shielding on analyte ion transport efficiency through the sampling orifice of an inductively coupled plasma mass spectrometer. Significant changes in ion transport efficiency result from changes in sample composition, R-F forward power, nebulizer flow and torch shield configuration. The changes in ion transport efficiency correlate well with changes in the potential recorded on a single floating probe placed 1 mm upstream from the sampling orifice. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1687 / 1695

页数：9

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