Fast-turnaround alkyl nitrate measurements during the PROPHET 1998 summer intensive. Ostling, K., Kelly, B., Bird, S., Bertman, S., Pippin, M., Thornberry, T., & Carroll, M., A. Journal of Geophysical Research, 106(D20):24439-24449, 2001. abstract bibtex An automated gas chromatographic system for making fast-turnaround measurements of alkyl nitrates was developed and tested. Every 30 min, samples were automatically acquired on a 1/16-inch OD Tenax trap made from fused silica-lined stainless steel tubing and injected by thermal desorption into the gas chromatograph. The system exhibited good chromatographic resolution, minimal breakthrough, and on-trap stability for C/sub 3/-C/sub 5/ nitrates. The detection limit of the instrument was <0.1 parts per trillion by volume for C/sub 3/-C/sub 5/ nitrates with an overall uncertainty of 30% for isopropyl nitrate and 50% for all other quantified compounds. Overall uncertainty of the method was limited by calibration precision rather than by sampling method or chromatography. The system was deployed in the field as part of the Program for Research on Oxidants: Photochemistry, Emissions, and Transport intensive held at the University of Michigan Biological Station in northern Michigan during the summer of 1998 from July 15 to August 22. Ambient results show a significant dynamic range with absolute levels affected by air mass history and pollution sources. The sum of measured C/sub 3/-C/sub 5/ alkyl nitrates obtained during this intensive ranged from 3.45 to 65.8 pptv, with a mean of 18.6 pptv and contributed 1% on average to total NO/sub y/, with a range of 0.5% to 3%.
@article{
title = {Fast-turnaround alkyl nitrate measurements during the PROPHET 1998 summer intensive},
type = {article},
year = {2001},
keywords = {Air pollution,Air pollution measurement,Alkyl nitrate,Atmosphere,Atmospheric composition,Atmospheric measuring apparatus,Atmospheric techniques,Chemical analysis,Chemical composition,Chromatography,Fast turnaround observations,Fused silica-lined stainless steel tubing,Gas chromatograph,Gas chromatography,Instrument,Isopropyl nitrate,Measurement technique,N-propyl nitrate,Organic compounds,PROPHET 1998 summer intensive,Peroxypropionyl nitrate,Tenax trap,United States,ad 1998,usa},
pages = {24439-24449},
volume = {106},
id = {50c73d21-60fa-3489-8bc9-2ea44c3bcea5},
created = {2015-02-12T14:34:52.000Z},
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last_modified = {2015-02-12T20:24:31.000Z},
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source_type = {Journal Article},
notes = {<m:note>Article<m:linebreak/>American Geophys. Union</m:note>},
abstract = {An automated gas chromatographic system for making fast-turnaround measurements of alkyl nitrates was developed and tested. Every 30 min, samples were automatically acquired on a 1/16-inch OD Tenax trap made from fused silica-lined stainless steel tubing and injected by thermal desorption into the gas chromatograph. The system exhibited good chromatographic resolution, minimal breakthrough, and on-trap stability for C/sub 3/-C/sub 5/ nitrates. The detection limit of the instrument was <0.1 parts per trillion by volume for C/sub 3/-C/sub 5/ nitrates with an overall uncertainty of 30% for isopropyl nitrate and 50% for all other quantified compounds. Overall uncertainty of the method was limited by calibration precision rather than by sampling method or chromatography. The system was deployed in the field as part of the Program for Research on Oxidants: Photochemistry, Emissions, and Transport intensive held at the University of Michigan Biological Station in northern Michigan during the summer of 1998 from July 15 to August 22. Ambient results show a significant dynamic range with absolute levels affected by air mass history and pollution sources. The sum of measured C/sub 3/-C/sub 5/ alkyl nitrates obtained during this intensive ranged from 3.45 to 65.8 pptv, with a mean of 18.6 pptv and contributed 1% on average to total NO/sub y/, with a range of 0.5% to 3%.},
bibtype = {article},
author = {Ostling, K and Kelly, B and Bird, S and Bertman, S and Pippin, M and Thornberry, T and Carroll, M A},
journal = {Journal of Geophysical Research},
number = {D20}
}
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Union</m:note>},\n abstract = {An automated gas chromatographic system for making fast-turnaround measurements of alkyl nitrates was developed and tested. Every 30 min, samples were automatically acquired on a 1/16-inch OD Tenax trap made from fused silica-lined stainless steel tubing and injected by thermal desorption into the gas chromatograph. The system exhibited good chromatographic resolution, minimal breakthrough, and on-trap stability for C/sub 3/-C/sub 5/ nitrates. The detection limit of the instrument was <0.1 parts per trillion by volume for C/sub 3/-C/sub 5/ nitrates with an overall uncertainty of 30% for isopropyl nitrate and 50% for all other quantified compounds. Overall uncertainty of the method was limited by calibration precision rather than by sampling method or chromatography. 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