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J Am Soc Mass Spectrom

Title:		Air analysis using tenax collection with jet-separator enrichment and ion trap mass spectrometric analysis
Author(s):		Kok GL; Cisper ME; Hemberger PH;
Address:		"Research Aviation Facility, National Center for Atmospheric Research, Boulder, Colorado, USA"
Journal Title:		J Am Soc Mass Spectrom
Year:		1996
Volume:		7
Issue:		11
Page Number:		1172 - 1176
DOI:		10.1016/S1044-0305(96)00138-9
ISSN/ISBN:		1044-0305 (Print) 1044-0305 (Linking)
Abstract:		"A dual adsorbent trap inlet system has been developed for an ion trap mass spectrometer (ITMS) to provide a rapid and sensitive system for screening of volatile organic compounds in air. The system employs three stages of concentration: preconcentration on an adsorbent Tenax trap, focusing in a cryogenic collection trap, and jet separator enrichment immediately prior to analysis by ITMS. Ten minute integrated samples are collected and analyzed immediately. The detection limit is 0. 9 parts-per-trillion by volume (pptrv) based on toluene as the analyte, and the reproducibility is 2% or better. Ambient air was analyzed for toluene on April 4, 1996 in Los Alamos, New Mexico, and concentrations ranged from 11-158 pptrv"
Keywords:
Notes:		"PubMed-not-MEDLINEKok, G L Cisper, M E Hemberger, P H eng 1996/11/01 J Am Soc Mass Spectrom. 1996 Nov; 7(11):1172-6. doi: 10.1016/S1044-0305(96)00138-9"