Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Harold I. Schiff"'
Publikováno v:
Journal of Geophysical Research: Atmospheres. 101:14721-14728
The tunable diode laser absorption spectrometric technique was employed to measure H2O2 and HCHO during the Mauna Loa Observatory Photochemistry Experiment 2 (MLOPEX 2) fall and winter intensives. Comparisons were made between the measurements made w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e37138f16172e8087755ed9918bc70c8
https://doi.org/10.1029/95jd03655
https://doi.org/10.1029/95jd03655
Autor:
Gervase I. Mackay, T. Staffelbach, Harold I. Schiff, Brian G. Heikes, B. McCully, D. R. Karecki, Gregory L. Kok
Publikováno v:
Journal of Geophysical Research: Atmospheres. 101:14729-14739
From the fall of 1991 through the summer of 1992 the Mauna Loa Observatory Photochemistry Experiment 2 (MLOPEX 2) took place in Hawaii. The experiment consisted of four intensive research periods, each approximately 1 month in duration. We report a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba45268aa6894902ab7723ecb9a19bb1
https://doi.org/10.1029/95jd02197
https://doi.org/10.1029/95jd02197
Autor:
Richard E. Shetter, Gervase I. Mackay, Donald H. Stedman, James Walega, T. Iguchi, Harold I. Schiff
Publikováno v:
Environmental sciencetechnology. 18(11)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d28dbadbc821db51acb684d8cbb598c6
https://pubmed.ncbi.nlm.nih.gov/22283211
https://pubmed.ncbi.nlm.nih.gov/22283211
Autor:
Gregory L. Kok, John A. Lind, Tadeusz E. Kleindienst, Chris M. Nero, Hoon Hwang, Gervase I. Mackay, Purnendu K. Dasgupta, Robert R. Arnts, Harold I. Schiff, Allan L. Lazrus, Laura K. Mayne, Dennis N. Hodges, Paul B. Shepson
Publikováno v:
Environmental sciencetechnology. 22(1)
A study was conducted to measure hydrogen peroxide from three sources: (1) zero air in the presence and absence of common interferences, (2) steady-state irradiations of hydrocarbon/NO/sub x/ mixtures, and (3) ambient air. The techniques employed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ab94914d61f53859f91fde7e708d71f
https://pubmed.ncbi.nlm.nih.gov/22195510
https://pubmed.ncbi.nlm.nih.gov/22195510
Publikováno v:
Environmental sciencetechnology. 21(3)
A tunable diode laser absorption spectrometer (TDLAS) has been used to make real-time measurements of NO/sub 2/ and HNO/sub 3/ in diesel engine exhaust. Teflon filters in the sample line protected the optics from exhaust particulates. Nitric acid and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ea567d332999e2a9b399dc461c9f0f0
https://pubmed.ncbi.nlm.nih.gov/22185110
https://pubmed.ncbi.nlm.nih.gov/22185110
Publikováno v:
Analytical Chemistry. 65:2472-2477
A gas chromatographic technique for trace level detection of peroxyacetyl nitrate (PAN) that relies on postcolumn chemical amplification as a means of improving the detection limit has been developed. The GC detector is based on luminol chemiluminesc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::286125d7ffa6eea6422b76705de32dbe
https://doi.org/10.1021/ac00066a012
https://doi.org/10.1021/ac00066a012
Autor:
Alex D. Colvin, Dennis Schuetzle, Gervase I. Mackay, Keith R. Carduner, Richard Y. Leong, D. R. Karecki, Harold I. Schiff
Publikováno v:
Environmental Science & Technology. 26:930-934
Tunable diode laser spectroscopy (TDLAS) of oil-derived SO 2 in automotive exhaust demonstrated acceptable repeatability in determination of oil consumption at steady-state engine operating conditions. The response time of the instrument was approxim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2862f96d45d8b33508cbb112b55f7a57
https://doi.org/10.1021/es00029a010
https://doi.org/10.1021/es00029a010
Autor:
Stephanie A. Vay, Brian A. Ridley, Gerhard Hübler, Douglas D. Davis, Donald R. Hastie, S. E. Vanbramer, Michael O. Rodgers, John D. Bradshaw, S. Dorris, P. J. Lebel, A. L. Torres, Scott T. Sandholm, Mary Anne Carroll, Harold I. Schiff, B. J. Huebert
Publikováno v:
Journal of Geophysical Research: Atmospheres. 95:10193-10198
Nitric acid concentrations, measured by both teflon/nylon filter packs (FP) and the tungstic oxide denuder (DEN), are compared with the average NO(x) concentrations from LIF and chemiluminescent methods. The HNO3/NO(x) ratio based on FPs ranged from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e22dd788417135c8b7b895e2a727bf01
https://doi.org/10.1029/jd095id07p10193
https://doi.org/10.1029/jd095id07p10193
Autor:
Estelle P. Condon, John D. Bradshaw, Douglas D. Davis, B. Baum, William L. Chameides, Sasha Madronich, Donald R. Hastie, Mary Anne Carroll, Scott T. Sandholm, A. L. Torres, Harold I. Schiff, Gerald L. Gregory, Brian A. Ridley, Michael O. Rodgers
Publikováno v:
Journal of Geophysical Research: Atmospheres. 95:10235-10247
Airborne measurements of NO2/NO ratios in the free troposphere, obtained using two-photon LIF (TP-LIF) and chemiluminescence (CL) detectors during the NASA Global Tropospheric Experiment Chemical Instrumentation Test and Evaluation 2 (CITE 2) program
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33a747156efda1d8534f1473f972e59b
https://doi.org/10.1029/jd095id07p10235
https://doi.org/10.1029/jd095id07p10235
Autor:
Peter J. LeBel, B. J. Huebert, Harold I. Schiff, Stephanie A. Vay, S. E. Vanbramer, Donald R. Hastie
Publikováno v:
Journal of Geophysical Research: Atmospheres. 95:10199-10204
Over 240 measurements of nitric acid (HNO3) were made in the free troposphere as well as in the boundary layer. Marine HNO3 measurement results were strikingly similar to results from GAMETAG and other past atmospheric field experiments. The marine b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bf27a4077ada202d0354642967a082b
https://doi.org/10.1029/jd095id07p10199
https://doi.org/10.1029/jd095id07p10199