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Real‐time Chemical Analysis of Aerosol Particles Using an Ion Trap Mass Spectrometer
Author(s) -
Yang Mo,
Reilly Peter T. A.,
Boraas Kirk B.,
Whitten William B.,
Ramsey J. Michael
Publication year - 1996
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(199602)10:3<347::aid-rcm476>3.0.co;2-m
Subject(s) - chemistry , ion trap , mass spectrometry , aerosol , ion , particle (ecology) , analytical chemistry (journal) , quadrupole ion trap , spectrometer , optics , chromatography , oceanography , physics , organic chemistry , geology
This paper describes the real‐time mass spectrometry of individual aerosol particles using an ion trap mass spectrometer. The airborne particulates, injected directly into the ion trap from the air, are detected by two‐fiber‐optic based particle detectors mounted above the ion trap electrode. The measured velocity of the incoming particle is used to predict the arrival time and to fire a Nd‐YAG laser so that the desorption laser pulse can intercept the fast moving particle at the center of the ion trap. Real‐time analysis of airborne potassium nitrate particles with a size of 15 μm has been achieved.