کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
583365 | 877870 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A sol-gel based solid phase microextraction fiber for analysis of aromatic hydrocarbons
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
A sol-gel based solid phase microextraction fiber for headspace sampling (HP-SPME) and GC determination of benzene, toluene, ethylbenzene and xylenes (BTEX) is introduced. The influences of fiber composition, microextraction conditions such as temperature and time on the fiber performance and desorption temperature and time were investigated. Under optimal conditions, the use of proposed fiber was thermally stable up to 250 °C and demonstrated high sensitive and fast sampling of BTEX from gaseous phase. Depending on the analysed substance, the linear range for a selected fiber and the applied GC-FID technique was from 4 to 80 ng mLâ1with limit of detection (LOD) 0.2-0.7 ng mLâ1 and 100-1000 ng mLâ1 with LOD 8-20 ng mLâ1 for gaseous and soil samples, respectively. HP-SPME-GC analysis was highly reproducible-relative standard deviations (R.S.D.) were between 5.0 and 7.9%. The proposed fiber was successfully used for BTEX sampling from indoor air and headspace of soil samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 152, Issue 2, 1 April 2008, Pages 677-682
Journal: Journal of Hazardous Materials - Volume 152, Issue 2, 1 April 2008, Pages 677-682
نویسندگان
Khalil Farhadi, Maliheh Mamaghanian, Ramin Maleki,