کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1206409 965233 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stir bar sorptive extraction of volatile compounds in vinegar: Validation study and comparison with solid phase microextraction
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Stir bar sorptive extraction of volatile compounds in vinegar: Validation study and comparison with solid phase microextraction
چکیده انگلیسی

Stir bar sorptive extraction was evaluated for analysing volatiles in vinegar. The procedure developed shows detection and quantitation limits, and linear ranges adequate for analysing this type of compounds. The accuracy obtained was close to 100%, with repeatability values lower than 13%. The extraction efficiency is inversely affected by the acetic acid content. Although the absolute areas decrease, the compound area/internal standard area ratio remains constant, so for quantitative analysis, the acetic acid concentration does not affect the analytical data. The method was compared with a previous SPME method. Similar performance characteristics were obtained for both methodologies, with lower detection and quantitation limits and better repeatability reproducibility values for SBSE. Both analytical methods were used to analyse a variety of vinegars. The results obtained from both methods were in agreement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1167, Issue 1, 5 October 2007, Pages 18–26
نویسندگان
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