%0 Journal Article %K particle %K ablation %K laser %K laser ablation %K laser-ablation %K inductively coupled plasma %K inductively coupled plasma mass spectrometry %K inductively-coupled-plasma %K laser ablation inductively coupled plasma mass %K mass %K mass spectrometry %K mass-spectrometry %K plasma %K plasma mass spectrometry %K plasma-mass-spectrometry %K spectrometry %K size %K particle-size %A Chunyi Liu %A Xianglei Mao %A Jhanis J Gonzalez %A Richard E Russo %B J.Anal.Atom.Spectrom. %D 2005 %F Laser %G eng %M 167 %P 200-203 %T Study of particle size influence on laser ablation inductively coupled plasma mass spectrometry using an in-line cascade impactor %V 20 %2 LBNL-58652 %X

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.