@article{
 title = {Fourier-transform infrared-analysis of aerosol formed in the photooxidation of isoprene and beta-pinene},
 type = {article},
 year = {1992},
 pages = {1239-1251},
 volume = {26},
 id = {997f1701-426b-363f-9578-22c2a0ddbcdc},
 created = {2014-10-08T16:28:18.000Z},
 file_attached = {false},
 profile_id = {363623ef-1990-38f1-b354-f5cdaa6548b2},
 group_id = {02267cec-5558-3876-9cfc-78d056bad5b9},
 last_modified = {2017-03-14T17:32:24.802Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {Palen:AEPAGT:1992a},
 source_type = {article},
 private_publication = {false},
 abstract = {The chemical composition of smog-chamber aerosol
generated during the photo-oxidation of isoprene and beta-pinene
was probed using infrared (i.r.) microscopy interfaced with a low
pressure impactor. The low-pressure impactor employed ZnSe
impaction surfaces which allowed direct analysis, with no
extraction, using i.r. microscopy. The low detection limits of this
technique, coupled with direct sample analysis, permitted the
chemical analysis of aerosol generated at low to moderate
hydrocarbon and ozone loadings. The quantitative analysis of the
i.r. spectra is limited, in part, by the absence of calibration
standards, however, it is clear that the biogenic aerosols
generated in this work were liquid mixtures containing ketone,
aldehyde, alcohol and organonitrate functional groups. Molar
loadings of each of these functional groups were estimated for nine
smog-chamber experiments. For aerosol formed in isoprene
photo-oxidation, aldehyde and ketone groups dominated (1.8 groups
per average molecule) while for aerosol formed in beta-pinene
photo-oxidation, alcohols and ketones dominated (a combined 2.7
groups per average molecule).
C1 UNIV CALIF LOS ANGELES,DEPT CHEM ENGN,LOS ANGELES,CA 90024.
CALTECH,DEPT CHEM ENGN,PASADENA,CA 91125.
},
 bibtype = {article},
 author = {Palen, E J and Allen, D T and Pandis, S N and Paulson, S E and Seinfeld, J H and Flagan, R C},
 journal = {Atmos Environ Pt A-Gen Top}
}

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The low-pressure impactor employed ZnSe\nimpaction surfaces which allowed direct analysis, with no\nextraction, using i.r. microscopy. The low detection limits of this\ntechnique, coupled with direct sample analysis, permitted the\nchemical analysis of aerosol generated at low to moderate\nhydrocarbon and ozone loadings. The quantitative analysis of the\ni.r. spectra is limited, in part, by the absence of calibration\nstandards, however, it is clear that the biogenic aerosols\ngenerated in this work were liquid mixtures containing ketone,\naldehyde, alcohol and organonitrate functional groups. Molar\nloadings of each of these functional groups were estimated for nine\nsmog-chamber experiments. For aerosol formed in isoprene\nphoto-oxidation, aldehyde and ketone groups dominated (1.8 groups\nper average molecule) while for aerosol formed in beta-pinene\nphoto-oxidation, alcohols and ketones dominated (a combined 2.7\ngroups per average molecule).\nC1 UNIV CALIF LOS ANGELES,DEPT CHEM ENGN,LOS ANGELES,CA 90024.\nCALTECH,DEPT CHEM ENGN,PASADENA,CA 91125.\n","bibtype":"article","author":"Palen, E J and Allen, D T and Pandis, S N and Paulson, S E and Seinfeld, J H and Flagan, R C","journal":"Atmos Environ Pt A-Gen Top","bibtex":"@article{\n title = {Fourier-transform infrared-analysis of aerosol formed in the photooxidation of isoprene and beta-pinene},\n type = {article},\n year = {1992},\n pages = {1239-1251},\n volume = {26},\n id = {997f1701-426b-363f-9578-22c2a0ddbcdc},\n created = {2014-10-08T16:28:18.000Z},\n file_attached = {false},\n profile_id = {363623ef-1990-38f1-b354-f5cdaa6548b2},\n group_id = {02267cec-5558-3876-9cfc-78d056bad5b9},\n last_modified = {2017-03-14T17:32:24.802Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {Palen:AEPAGT:1992a},\n source_type = {article},\n private_publication = {false},\n abstract = {The chemical composition of smog-chamber aerosol\ngenerated during the photo-oxidation of isoprene and beta-pinene\nwas probed using infrared (i.r.) microscopy interfaced with a low\npressure impactor. The low-pressure impactor employed ZnSe\nimpaction surfaces which allowed direct analysis, with no\nextraction, using i.r. microscopy. The low detection limits of this\ntechnique, coupled with direct sample analysis, permitted the\nchemical analysis of aerosol generated at low to moderate\nhydrocarbon and ozone loadings. The quantitative analysis of the\ni.r. spectra is limited, in part, by the absence of calibration\nstandards, however, it is clear that the biogenic aerosols\ngenerated in this work were liquid mixtures containing ketone,\naldehyde, alcohol and organonitrate functional groups. Molar\nloadings of each of these functional groups were estimated for nine\nsmog-chamber experiments. For aerosol formed in isoprene\nphoto-oxidation, aldehyde and ketone groups dominated (1.8 groups\nper average molecule) while for aerosol formed in beta-pinene\nphoto-oxidation, alcohols and ketones dominated (a combined 2.7\ngroups per average molecule).\nC1 UNIV CALIF LOS ANGELES,DEPT CHEM ENGN,LOS ANGELES,CA 90024.\nCALTECH,DEPT CHEM ENGN,PASADENA,CA 91125.\n},\n bibtype = {article},\n author = {Palen, E J and Allen, D T and Pandis, S N and Paulson, S E and Seinfeld, J H and Flagan, R C},\n journal = {Atmos Environ Pt A-Gen Top}\n}","author_short":["Palen, E., J.","Allen, D., T.","Pandis, S., N.","Paulson, S., E.","Seinfeld, J., H.","Flagan, R., C."],"bibbaseid":"palen-allen-pandis-paulson-seinfeld-flagan-fouriertransforminfraredanalysisofaerosolformedinthephotooxidationofisopreneandbetapinene-1992","role":"author","urls":{},"downloads":0},"bibtype":"article","biburl":null,"creationDate":"2014-09-11T15:28:59.266Z","downloads":0,"keywords":[],"search_terms":["fourier","transform","infrared","analysis","aerosol","formed","photooxidation","isoprene","beta","pinene","palen","allen","pandis","paulson","seinfeld","flagan"],"title":"Fourier-transform infrared-analysis of aerosol formed in the photooxidation of isoprene and beta-pinene","year":1992}