TY - Abstract A1 - Karbiwnyk, C A1 - Helmig, D A1 - Birks, J T1 - Measurement of atmospheric non-methane volatile organic compounds using ambient CFC reference compounds N1 - R825417 ER - TY - Abstract A1 - Karbiwnyk, C A1 - Mills, C A1 - Helmig, D A1 - Birks, J T1 - Vertical profile measurements of atmospheric non-methane volatile organic compounds using ambient CFC reference compounds N1 - R825417 JF - EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION PB - American Geophysical Union ER - TY - Abstract A1 - Karbiwnyk, C A1 - Mills, C A1 - Helmig, D A1 - Birks, J T1 - Vertical profile measurements of atmospheric non-methane volatile organic compounds using ambient CFC reference compounds N1 - R825417 ER - TY - JOUR A1 - Karbiwnyk, C M A1 - Mills, C S A1 - Helmig, D A1 - Birks, J W T1 - Minimization of water vapor interference in the analysis of non-methane volatile organic compounds by solid adsorbent sampling Y1 - 2002/06/7 N1 - R825417 JF - JOURNAL OF CHROMATOGRAPHY A J1 - J CHROMATOGR A VL - 958 IS - 1-2 SP - 219 EP - 229 ER - TY - JOUR A1 - Karbiwnyk, C M A1 - Mills, C S A1 - Helmig, D A1 - Birks, J W T1 - Use of chlorofluorocarbons as internal standards for the measurement of atmospheric non-methane volatile organic compounds sampled onto solid adsorbent cartridges. Y1 - 2003/01/28 N1 - R825417 JF - ENVIRONMENTAL SCIENCE & TECHNOLOGY J1 - ENVIRON SCI TECHNOL J2 - ENVIRONMENTAL SCIENCE & TECHNOLOGY J3 - Enviornmenal Research VL - 37 IS - 5 SP - 1002 EP - 1007 ER - TY - CONF A1 - Karbiwnyk, C A1 - Birks, J A1 - Helmig, D T1 - Measurement of non-methane volatile organic compounds using ambient CFC reference compounds. Y1 - 1997// N1 - R825417 ER - TY - CONF A1 - Karbiwnyk, C A1 - Birks, J A1 - Helmig, D T1 - Measurement of non-methane volatile organic compounds using ambient CFC reference compounds. Y1 - 1998/03/ N1 - R825417 ER - TY - CONF A1 - Helmig, D A1 - Birks, J A1 - Kuck, L A1 - Balsley, B T1 - Vertical profiles of biogenic volatile organic compounds (BVOC) and isoprene oxidation products within the planetary boundary layer in the Peruvian Amazon. Y1 - 1997// N1 - R825417 ER -