Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Robert W. Coutant"'
Determination of Phase-Distributed Polycyclic Aromatic Hydrocarbons in Air by Grease-Coated Denuders
Autor:
Robert W. Coutant, Robert G. Lewis
Publikováno v:
Gas and Particle Phase Measurements of Atmospheric Organic Compounds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39e6fa297066dbe11876c59b488e85b4
https://doi.org/10.1201/9781003078340-9
https://doi.org/10.1201/9781003078340-9
Publikováno v:
Air & Waste. 43:1367-1373
Fixed beds of sorbent media are used for the evaluation of poiynuclear aromatic hydrocarbons (PAH) present in air. Twostage sampling and separate extraction and analyses of PAH associated with aerosol particles and those present in the vapor state ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::327f3725c1dbe2b85317f0276c16a640
https://doi.org/10.1080/1073161x.1993.10467211
https://doi.org/10.1080/1073161x.1993.10467211
Publikováno v:
Atmospheric Environment. Part A. General Topics. 26:2831-2834
The overall efficiency of silicone-grease-coated denuders was determined for the collection of selected 3- and 4-ring polynuclear aromatic hydrocarbons (PAH). PAH studied were fluorene, phenanthrene, anthracene, acenaphthene and pyrene. Fluorene was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb75afbe2622870e864e415b51138c03
https://doi.org/10.1016/0960-1686(92)90020-l
https://doi.org/10.1016/0960-1686(92)90020-l
Autor:
Robert W. Coutant
Publikováno v:
Environmental Science & Technology. 25:1649-1649
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0add2cb5e846f9d0c0fabfaa68e7188
https://doi.org/10.1021/es00021a020
https://doi.org/10.1021/es00021a020
Publikováno v:
Atmospheric Environment (1967). 23:2205-2211
A laminar flow model incorporating variable collisional reaction efficiency is developed and applied for the design of annular denuders. Efficiencies predicted with the model show excellent agreement with published empirical data for annular denuders
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e1f08f2008b371a5a175316ae870dc3
https://doi.org/10.1016/0004-6981(89)90182-0
https://doi.org/10.1016/0004-6981(89)90182-0
Autor:
Chester W. Spicer, Gerald F. Ward, Darrell W. Joseph, A.J. Gaynor, Irwin H. Billick, Robert W. Coutant
Publikováno v:
Environment International, Vol 15, Iss 1, Pp 643-654 (1989)
Recent studies have shown that NO{sub 2} is removed from indoor air more rapidly than by air exchange alone. The relative efficiencies for NO{sub 2} removal by a large number of materials are presented here, along with a discussion of the factors tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d4b7de81d56da50d218e785a015244
https://doi.org/10.1016/0160-4120(89)90087-1
https://doi.org/10.1016/0160-4120(89)90087-1
Publikováno v:
Atmospheric Environment (1967). 22:403-409
Laboratory and field sampling experiments were conducted to determine the phase-distribution of polynuclear aromatic hydrocarbons (PAH) in the ambient atmosphere and to determine the potential for artifact formation due to volatilization and ozone (O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ed8d86e49a80108522c33936051d2bc
https://doi.org/10.1016/0004-6981(88)90046-7
https://doi.org/10.1016/0004-6981(88)90046-7
Publikováno v:
Analytical Chemistry. 57:214-219
Ce dispositif de mise d'echantillon avec du Tenax GC comme sorbant se compare favorablement aux dispositifs actifs et a une bien meilleure sensibilite que les moniteurs passifs qui utilisent du charbon de bois active
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9f60afe165f0d6a16fc566f37c58c4f
https://doi.org/10.1021/ac00279a050
https://doi.org/10.1021/ac00279a050
Autor:
Robert W. Coutant
Publikováno v:
Environmental Science & Technology. 11:873-878
The performances of various filter media are determined relative to their use in collection of ambient sulfates. The effects of operational parameters and atmospheric variables on the collection of sulfates are investigated. Results show that sorptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4707f02bec6b40bde0832733acd0fc71
https://doi.org/10.1021/es60132a008
https://doi.org/10.1021/es60132a008
Publikováno v:
Analytical Chemistry. 58:445-448
The effect of fluctuating concentration on the sampling rate of a thermally reversible passive sampler is discussed, and guidelines are presented for minimizing the error associated with this phenomenon. A modified passive sampler developed using the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7745350ce14ea77083a2c3327ea53a1
https://doi.org/10.1021/ac00293a039
https://doi.org/10.1021/ac00293a039