کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10561328 969769 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Separation of PAHs in aerosol by thin layer chromatography for compound-specific stable carbon isotope analysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Separation of PAHs in aerosol by thin layer chromatography for compound-specific stable carbon isotope analysis
چکیده انگلیسی
A method using a thin layer chromatography (TLC) for compound-specific stable carbon isotope analysis of polycyclic aromatic hydrocarbons (PAHs) with four to seven rings was developed in this study. Five aerosol samples were used as test samples. Two stationary phases and eight developing systems were tested. The results indicated: (1) silica gel is superior to aluminum oxide and the silica gel precoated plate developed with hexane:chloroform (45:5, v/v) can give the best separation effect; (2) individual PAHs associated with aerosols can be effectively separated from unresolved complex mixture (UCM) by this procedure. The carbon isotope composition of PAHs can be measured with a standard deviation (S.D.) < 0.5‰, n = 4. No significant isotopic fractionation was observed during the TLC procedure. And this technique can be used as a potential tool for source identification of PAHs in the aerosols.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 66, Issue 2, 15 April 2005, Pages 487-494
نویسندگان
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