Measurement of the organic nitrate yield from OH reaction with isoprene. Chen, X., H., Hulbert, D., Shepson, P., B., & Xiaohui, C. Journal of Geophysical Research-Atmospheres, 103(D19):25563-25568, 1998.
Measurement of the organic nitrate yield from OH reaction with isoprene [link]Website  abstract   bibtex   
This paper describes the results of measurements of the branching ratio (k/sub 2b//(k/sub 2a/+k/sub 2b/)) for formation of organic nitrates via peroxy radical reaction with NO, following the reaction of the OH radical with isoprene (2-methyl-1,3-butadiene). The experiments were conducted in a 5 m/sup 3/ all-Teflon photochemical reaction chamber, via the photolysis of isopropyl nitrite in the presence of isoprene and NO. The organic nitrate yield was determined from the measurement of the sum of all organic nitrate isomers, using an organic nitrate selective detector, as a function of isoprene consumed. Organic nitrates were sampled directly from the reaction chamber into a capillary chromatographic column, followed by separation and quantitative pyrolytic conversion to NO/sub 2/, which was detected through luminol chemiluminescence. In this manner, seven isomeric organic nitrates were observed, with a total yield of 4.4%. The structural features of the precursor peroxy radicals that influence the magnitude of the yield is discussed. Emission inventories for isoprene and NO lead to the conclusion that as much as 7% of NO emitted in the eastern United States in the summer months is lost from the atmosphere through the isoprene nitrate channel.
@article{
 title = {Measurement of the organic nitrate yield from OH reaction with isoprene},
 type = {article},
 year = {1998},
 keywords = {& Earth Sciences (PHYS),2-methyl-1,3-butadiene,Atmosphere,Atmospheric chemistry,Branching ratio,Chemical,Chemical reaction product,Chemistry,Earth Sciences,Free radical reaction,Free radical reactions,Free radicals,Isomeric organic nitrate,Isoprene,Molecule-molecule reactions,Organic compounds,Organic nitrate yield,Oxygen compounds,Peroxy radical,Physical,alkyl,constants,gas-phase reaction,hydrocarbons,hydroxyl,no,nox,oh,peroxy-radicals,photooxidations,radical reaction,site},
 pages = {25563-25568},
 volume = {103},
 websites = {<Go to ISI>://000076490200034},
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 last_modified = {2015-06-12T17:34:59.000Z},
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 source_type = {Journal Article},
 notes = {
        <m:bold>From Duplicate 1 ( </m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B; Xiaohui, Chen )<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 2 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B; Xiaohui, Chen; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 2 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B; Xiaohui, Chen; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 1 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Xiaohui, Chen; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>Article<m:linebreak></m:linebreak>American Geophys. Union<m:linebreak></m:linebreak>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 2 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>And Duplicate 3 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>OCT 20<m:linebreak></m:linebreak>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 3 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B; Xiaohui, Chen; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 1 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Xiaohui, Chen; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>Article<m:linebreak></m:linebreak>American Geophys. Union<m:linebreak></m:linebreak>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 2 (</m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B)<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>OCT 20<m:linebreak></m:linebreak>
        <m:linebreak></m:linebreak>
        <m:bold>From Duplicate 2 ( </m:bold>
        <m:bold>
          <m:italic>Measurement of the organic nitrate yield from OH reaction with isoprene</m:italic>
        </m:bold>
        <m:bold> - Chen, X H; Hulbert, D; Shepson, P B )<m:linebreak></m:linebreak>
        </m:bold>
        <m:linebreak></m:linebreak>129XW<m:linebreak></m:linebreak>J GEOPHYS RES-ATMOS<m:linebreak></m:linebreak>
        <m:linebreak></m:linebreak>
      },
 abstract = {This paper describes the results of measurements of the branching ratio (k/sub 2b//(k/sub 2a/+k/sub 2b/)) for formation of organic nitrates via peroxy radical reaction with NO, following the reaction of the OH radical with isoprene (2-methyl-1,3-butadiene). The experiments were conducted in a 5 m/sup 3/ all-Teflon photochemical reaction chamber, via the photolysis of isopropyl nitrite in the presence of isoprene and NO. The organic nitrate yield was determined from the measurement of the sum of all organic nitrate isomers, using an organic nitrate selective detector, as a function of isoprene consumed. Organic nitrates were sampled directly from the reaction chamber into a capillary chromatographic column, followed by separation and quantitative pyrolytic conversion to NO/sub 2/, which was detected through luminol chemiluminescence. In this manner, seven isomeric organic nitrates were observed, with a total yield of 4.4%. The structural features of the precursor peroxy radicals that influence the magnitude of the yield is discussed. Emission inventories for isoprene and NO lead to the conclusion that as much as 7% of NO emitted in the eastern United States in the summer months is lost from the atmosphere through the isoprene nitrate channel.},
 bibtype = {article},
 author = {Chen, X H and Hulbert, D and Shepson, P B and Xiaohui, Chen},
 journal = {Journal of Geophysical Research-Atmospheres},
 number = {D19}
}
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