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

Publication Type

Journal Article

Authors

Liu, Chunyi, Xianglei Mao, Jhanis J. Gonzalez, Richard E. Russo

Abstract

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.

Journal

J.Anal.Atom.Spectrom.

Volume

Year of Publication

2005

Notes

LBNL-58652 NOT IN FILE

Organization

Laser Technologies Group, Energy Storage and Distributed Resources Division