|Title||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|
|Year of Publication||2005|
|Authors||Liu, Chunyi, Xianglei Mao, Jhanis J. Gonzalez, and Richard E. Russo|
|Keywords||ablation, inductively coupled plasma, inductively coupled plasma mass spectrometry, inductively-coupled-plasma, laser, laser ablation, laser ablation inductively coupled plasma mass, laser-ablation, mass, mass spectrometry, mass-spectrometry, particle, particle-size, plasma, plasma mass spectrometry, plasma-mass-spectrometry, size, spectrometry|
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.
LBNL-58652 NOT IN FILE