کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1210968 1493720 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of liquid–liquid extraction with headspace methods for the characterization of volatile fractions of commercial hydrolats from typically Mediterranean species
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Comparison of liquid–liquid extraction with headspace methods for the characterization of volatile fractions of commercial hydrolats from typically Mediterranean species
چکیده انگلیسی

Chemical composition of volatile fractions of nine commercial hydrolats and corresponding essential oils obtained using an industrial process were studied. The hydrolat volatile fractions were reported for the first time. A comparative study of those obtained, on the one hand, by liquid–liquid extraction (LLE) and, on the other hand, using five solid-phase microextraction (SPME) fibers and also purge-and-trap-automatic thermal desorption (P&T-ATD) was conducted with analysis performed by GC and GC/MS. The use of various techniques has resulted in a change of chromatographic profile of the hydrolat volatile fractions. Quantitative differences were established between chemical compositions of headspace and those obtained by a conventional method (LLE). Statistical analyses were carried out to summarize the results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1193, Issues 1–2, 6 June 2008, Pages 37–49
نویسندگان
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