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.
AN - 167 BT - J.Anal.Atom.Spectrom. C2 - LBNL-58652 LA - eng LB - Laser M1 - 3 N1 -LBNL-58652 NOT IN FILE
N2 -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.
PY - 2005 SP - 200 EP - 203 T2 - J.Anal.Atom.Spectrom. TI - Study of particle size influence on laser ablation inductively coupled plasma mass spectrometry using an in-line cascade impactor VL - 20 ER -