کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11016083 | 1781692 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection and quantification of trace airborne transfluthrin concentrations via air sampling and thermal desorption gas chromatography-mass spectrometry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
A rapid thermal desorption-gas chromatography-electron ionization-mass spectrometry (TD-GC-EI-MS) method for airborne transfluthrin detection is studied. Active air sampling of 9âL over 1âh at 23â°C through a Tenax®-loaded tube resulted in efficient capture of airborne transfluthrin. Subsequent thermal desorption was employed to achieve an LOD of 2.6 ppqv (parts per quadrillion by volume). A minimum primary desorption temperature of 300â°C is necessary for optimal recovery of sample from the Tenax® adsorbent. The matrix effects of indoor air lead to an error of 10.9% and 10.5% recovery of sample (10âpg and 100âpg loaded tubes, respectively). The linear range was 74-74,000 ppqv with a correlation coefficient of 0.9981. Active air sampling of a novel passive release device revealed a â¼150âpg/L airborne concentration gradient over 1âm, providing spatial characterization of the device's performance. This efficient method allows for the remote collection of samples and rapid analysis of airborne transfluthrin from industrial applications, optimization studies of commercial products as well as domestic/household monitoring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1573, 26 October 2018, Pages 156-160
Journal: Journal of Chromatography A - Volume 1573, 26 October 2018, Pages 156-160
نویسندگان
Michael W.C. Kwan, Jason P. Weisenseel, Nicholas Giel, Alexander Bosak, Christopher D. Batich, Bradley J. Willenberg,