کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7600701 1492145 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Doehlert design-desirability function multi-criteria optimal separation of 17 phenolic compounds from extra-virgin olive oil by capillary zone electrophoresis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Doehlert design-desirability function multi-criteria optimal separation of 17 phenolic compounds from extra-virgin olive oil by capillary zone electrophoresis
چکیده انگلیسی
In Brazil, the consumption of extra-virgin olive oil (EVOO) is increasing annually, but there are no experimental studies concerning the phenolic compound contents of commercial EVOO. The aim of this work was to optimise the separation of 17 phenolic compounds already detected in EVOO. A Doehlert matrix experimental design was used, evaluating the effects of pH and electrolyte concentration. Resolution, runtime and migration time relative standard deviation values were evaluated. Derringer's desirability function was used to simultaneously optimise all 37 responses. The 17 peaks were separated in 19 min using a fused-silica capillary (50 μm internal diameter, 72 cm of effective length) with an extended light path and 101.3 mmol L−1 of boric acid electrolyte (pH 9.15, 30 kV). The method was validated and applied to 15 EVOO samples found in Brazilian supermarkets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 146, 1 March 2014, Pages 558-568
نویسندگان
, , , , ,