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

Publication Type

Journal Article

LBNL Report Number

LBNL-58652

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

20

Year of Publication

2005

Pagination

200-203

Accession Number

167