کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7619543 | 1494469 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simple and fast method for simultaneous determination of propionate and sorbate in bread by capillary electrophoresis with UV spectrophotometric detection
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Simple and fast method for simultaneous determination of propionate and sorbate in bread by capillary electrophoresis with UV spectrophotometric detection Simple and fast method for simultaneous determination of propionate and sorbate in bread by capillary electrophoresis with UV spectrophotometric detection](/preview/png/7619543.png)
چکیده انگلیسی
A novel method for simultaneous determination of the preservatives propionate and sorbate in bread samples using capillary electrophoresis with diode array spectrophotometric detection is proposed. This method requires a simple and fast sample preparation using aqueous extraction with sonication aid. A background electrolyte (BGE) composed of 10â¯mmol Lâ1 benzoic acid, 15â¯mmol Lâ1l-histidine and 0.2â¯mmol Lâ1 of cetyltrimethylammonium bromide (CTAB) allowed the separation of the preservatives with good resolution in less than 5â¯min. Propionate was indirectly detected at 235â¯nm, and the sorbate was directly detected at 250â¯nm. The limits of quantification (LOQ) were 4.3 and 1.5â¯mg kgâ1 for propionate and sorbate, respectively. The proposed method was successfully applied for analysis of commercial samples of sliced white bread.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Composition and Analysis - Volume 72, September 2018, Pages 93-96
Journal: Journal of Food Composition and Analysis - Volume 72, September 2018, Pages 93-96
نویسندگان
Francielly Fernanda Souza de Jesus, Aline Guadalupe Coelho, LaÃs de Assis Pallos, José Alberto Fracassi da Silva, Daniela Daniel, Dosil Pereira de Jesus,