Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Formaldehyde measurements in libraries: Comparison between infrared diode laser spectroscopy and a DNPH-derivatization method
AbstractFormaldehyde concentrations have been measured in the university libraries in Strasbourg (east of France). Infrared diode laser spectroscopy and a conventional DNPH-derivatization method followed by liquid chromatography coupled to UV detection have been used simultaneously for comparison purposes.The formaldehyde concentrations obtained by both the techniques were always in excellent agreement, showing that the infrared diode laser spectroscopy can be used for formaldehyde monitoring in indoor atmosphere, with a time resolution of few minutes.Formaldehyde concentrations were generally found to be in the range 8–33μgm−3, except for two libraries where concentrations of 82 and 105μgm−3 have been measured. Using the results obtained by both techniques, the resulting mean formaldehyde level in the investigated libraries was then 33.5±31.2μgm−3, where the quoted error correspond to the standard deviation.Acetaldehyde and hexanal levels have also been quantified by duplicated measurements in the same libraries by the DNHP-derivatization method. They ranged from 0.0 to 11.3μgm−3 for acetaldehyde and from 1.0 to 16.7μgm−3 for hexanal and their mean values were found to be 2.1±3.2μgm−3 (acetaldehyde) and 4.0±4.4μgm−3 (hexanal), where the quoted errors correspond to the standard deviation.
Formaldehyde measurements in libraries: Comparison between infrared diode laser spectroscopy and a DNPH-derivatization method
AbstractFormaldehyde concentrations have been measured in the university libraries in Strasbourg (east of France). Infrared diode laser spectroscopy and a conventional DNPH-derivatization method followed by liquid chromatography coupled to UV detection have been used simultaneously for comparison purposes.The formaldehyde concentrations obtained by both the techniques were always in excellent agreement, showing that the infrared diode laser spectroscopy can be used for formaldehyde monitoring in indoor atmosphere, with a time resolution of few minutes.Formaldehyde concentrations were generally found to be in the range 8–33μgm−3, except for two libraries where concentrations of 82 and 105μgm−3 have been measured. Using the results obtained by both techniques, the resulting mean formaldehyde level in the investigated libraries was then 33.5±31.2μgm−3, where the quoted error correspond to the standard deviation.Acetaldehyde and hexanal levels have also been quantified by duplicated measurements in the same libraries by the DNHP-derivatization method. They ranged from 0.0 to 11.3μgm−3 for acetaldehyde and from 1.0 to 16.7μgm−3 for hexanal and their mean values were found to be 2.1±3.2μgm−3 (acetaldehyde) and 4.0±4.4μgm−3 (hexanal), where the quoted errors correspond to the standard deviation.
Formaldehyde measurements in libraries: Comparison between infrared diode laser spectroscopy and a DNPH-derivatization method
Hanoune, B. (Autor:in) / LeBris, T. (Autor:in) / Allou, L. (Autor:in) / Marchand, C. (Autor:in) / Le Calvé, S. (Autor:in)
Atmospheric Environment ; 40 ; 5768-5775
10.05.2006
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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