Study of particle size infkuence on laser ablation inductively coupled plasma mass spectrometry using an in-line cascade impactor

被引：30

作者：

Liu, CY ^{[1
]}

Mao, XL ^{[1
]}

González, J ^{[1
]}

Russo, RE ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2005年 / 20卷 / 03期

关键词：

D O I：

10.1039/b414422h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An in-line cascade impactor was used as a low pass filter to study the effects of particles on inductively coupled plasma mass spectrometry (ICP-MS) performance. The temporal relative standard deviation (TRSD), which represents the short term internal precision during repetitive ablation, was improved from 20% to 4% by removing large particles ablated from brass alloys. External precision for spot to spot measurements on a bulk sample was improved to approximately 2%. The ablated aerosol chemistry was particle size dependent: smaller particles were zinc rich while larger particles were copper rich.

引用

页码：200 / 203

页数：4

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