Journal
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
Volume 16, Issue 7, Pages 681-685Publisher
WILEY
DOI: 10.1002/rcm.626
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Funding
- NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES [P42ES007375] Funding Source: NIH RePORTER
- NIEHS NIH HHS [2P42 ES07375] Funding Source: Medline
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We have designed and constructed an atmospheric pressure laser desorption/chemical ionization (AP-LD/CI) source that utilizes a laser pulse to desorb intact neutral molecules, followed by chemical ionization via reagent ions produced by a corona discharge. This source employs a heated capillary atmospheric pressure inlet coupled to a quadrupole ion trap mass spectrometer and allows sampling under normal ambient air conditions. Preliminary results demonstrate that this technique provides similar to150-fold increase in analyte ions compared to the ion population generated by atmospheric pressure infrared matrix-assisted laser desorption/ionization (AP-IR-MALDI). Copyright (C) 2002 John Wiley Sons, Ltd.
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