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FTIR double-pass transmittance spect...

Hopey, Judith A.

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FTIR double-pass transmittance spectroscopy of size-segregated aerosol deposits.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	FTIR double-pass transmittance spectroscopy of size-segregated aerosol deposits./
作者:	Hopey, Judith A.
面頁冊數:	63 p.
附註:	Source: Masters Abstracts International, Volume: 44-05, page: 2325.
Contained By:	Masters Abstracts International44-05.
標題:	Physics, Atmospheric Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1433253
ISBN:	9780542586989

FTIR double-pass transmittance spectroscopy of size-segregated aerosol deposits.
Hopey, Judith A.

FTIR double-pass transmittance spectroscopy of size-segregated aerosol deposits. - 63 p.

Source: Masters Abstracts International, Volume: 44-05, page: 2325.

Thesis (M.S.)--The University of Alabama in Huntsville, 2006.

A method based on Fourier transform infrared (FTIR) double-pass transmittance spectroscopy was developed for determining functional group loading in size-segregated ambient aerosol deposits. Atmospheric particulate matter (PM) was sampled during the summer of 2004 in Huntsville, AL, with a rotating-stage Micro-Orifice Uniform Deposit Impactor (MOUDI) equipped with aluminum foil substrates. Each sample was analyzed without extraction using an FTIR spectrometer and a Seagull reflectance accessory. For calibration, solutions of pure ammonium sulfate of varying concentrations were prepared and aerosolized. The resulting PM was collected by the MOUDI and analyzed by the FTIR as the PM from the ambient samples was. The PM from these solutions was also analyzed gravimetrically to establish a relationship between analyte mass and area of the corresponding absorption band. This relationship was used to calculate the mass of the sulfate fraction of the ambient aerosol deposits using the relatively isolated feature at 570-640cm-1.

ISBN: 9780542586989Subjects--Topical Terms:

1019431
Physics, Atmospheric Science.

FTIR double-pass transmittance spectroscopy of size-segregated aerosol deposits.
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502 $a Thesis (M.S.)--The University of Alabama in Huntsville, 2006.
520 $a A method based on Fourier transform infrared (FTIR) double-pass transmittance spectroscopy was developed for determining functional group loading in size-segregated ambient aerosol deposits. Atmospheric particulate matter (PM) was sampled during the summer of 2004 in Huntsville, AL, with a rotating-stage Micro-Orifice Uniform Deposit Impactor (MOUDI) equipped with aluminum foil substrates. Each sample was analyzed without extraction using an FTIR spectrometer and a Seagull reflectance accessory. For calibration, solutions of pure ammonium sulfate of varying concentrations were prepared and aerosolized. The resulting PM was collected by the MOUDI and analyzed by the FTIR as the PM from the ambient samples was. The PM from these solutions was also analyzed gravimetrically to establish a relationship between analyte mass and area of the corresponding absorption band. This relationship was used to calculate the mass of the sulfate fraction of the ambient aerosol deposits using the relatively isolated feature at 570-640cm-1.
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