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A platform for research: civil engineering, architecture and urbanism
Laboratory Evaluation of an Aldehyde Scrubber System Specifically for the Detection of Acrolein
We demonstrate the use of an aldehyde scrubber system to resolve isobaric aldehyde/alkene interferences in a proton transfer reaction mass spectrometer (PTR-MS) by selectively removing the aldehydes from the gas mixture without loss of quantitative information for the alkene components. The aldehyde scrubber system uses a bisulfite solution, which scrubs carbonyl compounds from the gas stream by forming water-soluble carbonyl bisulfite addition products, and has been evaluated using a synthetic mixture of acrolein and isoprene. Trapping efficiencies of acrolein exceeded 97%, whereas the transmission efficiency of isoprene was better than 92%. Quantification of the PTR-MS response to acrolein was validated through an intercomparison study that included two derivatization methods, dinitrophenylhydrazine (DNPH) and O-(4-cyano-2-ethoxybenzyl)hydroxylamine (CNET), and a spectroscopic method using a quantum cascade laser infrared absorption spectroscopy (QCL) instrument. Finally, using cigarette smoke as a complex matrix, the acrolein content was assessed using the scrubber and compared with direct QCL-based detection.
Laboratory Evaluation of an Aldehyde Scrubber System Specifically for the Detection of Acrolein
We demonstrate the use of an aldehyde scrubber system to resolve isobaric aldehyde/alkene interferences in a proton transfer reaction mass spectrometer (PTR-MS) by selectively removing the aldehydes from the gas mixture without loss of quantitative information for the alkene components. The aldehyde scrubber system uses a bisulfite solution, which scrubs carbonyl compounds from the gas stream by forming water-soluble carbonyl bisulfite addition products, and has been evaluated using a synthetic mixture of acrolein and isoprene. Trapping efficiencies of acrolein exceeded 97%, whereas the transmission efficiency of isoprene was better than 92%. Quantification of the PTR-MS response to acrolein was validated through an intercomparison study that included two derivatization methods, dinitrophenylhydrazine (DNPH) and O-(4-cyano-2-ethoxybenzyl)hydroxylamine (CNET), and a spectroscopic method using a quantum cascade laser infrared absorption spectroscopy (QCL) instrument. Finally, using cigarette smoke as a complex matrix, the acrolein content was assessed using the scrubber and compared with direct QCL-based detection.
Laboratory Evaluation of an Aldehyde Scrubber System Specifically for the Detection of Acrolein
Knighton, W. Berk (author) / Herndon, Scott C. (author) / Shorter, Joanne H. (author) / Miake-Lye, Richard C. (author) / Zahniser, Mark S. (author) / Akiyama, Kenichi (author) / Shimono, Akio (author) / Kitasaka, Kazuya (author) / Shimajiri, Hatsumi (author) / Sugihara, Koichi (author)
Journal of the Air & Waste Management Association ; 57 ; 1370-1378
2007-11-01
9 pages
Article (Journal)
Electronic Resource
Unknown
Elsevier | 1991