Design analysis of a laser ablation cell for inductively coupled plasma mass spectrometry by numerical simulation

被引：29

作者：

Autrique, D. ^{[1
]}

Bogaerts, A. ^{[1
]}

Lindner, H. ^{[2
]}

Garcia, C. C. ^{[2
]}

Niemax, K. ^{[2
]}

机构：

[1] Univ Antwerp, Dept Chem, Res Grp Plasma Laser Ablat & Surface Modelling An, B-2610 Antwerp, Belgium

[2] Univ Dortmund, Inst Sci Anal, ISAS, D-44139 Dortmund, Germany

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2008年 / 63卷 / 02期

关键词：

laser ablation; aerosol transport; numerical simulation; inductively coupled plasma mass spectrometry;

D O I：

10.1016/j.sab.2007.11.032

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A laser ablation setup including outer chamber, sample tube, sample bolder and transport tubing was modelled and optimized using advanced computational fluid dynamics techniques. The different components of the setup were coupled and the whole device was modelled at once. The mass transport efficiency and transit times of near infrared fermosecond (A) laser generated brass aerosols in pure argon and helium-argon mixtures were calculated at experimentally optimized conditions and a transient signal was constructed. The use of helium or argon did not influence the mass transport efficiency, but the signal structure changed. The signal fine structure was retrieved and experimentally validated. Bimodal peak structures were observed that seemed to originate from turbulent effects in the tubing connecting a Y-connector and the injector. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：257 / 270

页数：14

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