Attenuation of Polyatomic Ion Interferences in Inductively Coupled Plasma Mass Spectrometry by Gas-Phase Collisions
作者： John T. Rowan , R. S. Houk
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摘要: A double quadrupole arrangement to remove polyatomic ions by collisions with an added target gas has been evaluated. The Ar2+, ArO+, and ArN+ were attenuated factors of 50-400 count rates \lesssim 100 counts s−1. Fifty seventy percent the analyte retained. Removal retention favored low-energy Xe or CH4 rather than typical gases like N2 Ar. Products ion-molecule reactions between background in first could be observed.
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