کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1169460 | 1491170 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of vitamin E and carotenoid pigments by high performance liquid chromatography in shell of Chionoecetes opilio
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This study reports the optimization of a method for the determination of vitamin E and carotenoids in shells of Chionoecetes opilio samples by online HPLC coupled with UV–vis and fluorescence detectors. The carotenoids were determined with diode-array detector (λ 450 nm) and vitamin E with fluorescence detection (λex 288, λem 331 nm).Two extractions methods were compared, saponification followed by an extraction step and a simple extraction with acetone. The last one was selected because allows to determine all compounds.Linearity, precisions and recoveries achieved for all compounds were satisfactory.Mean concentrations (mg per 100 g dry weight) were; 23.3 for vitamin E, 9.49 for astaxanthin and 0.2 mg for β-carotene.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 617, Issues 1–2, 9 June 2008, Pages 225–229
Journal: Analytica Chimica Acta - Volume 617, Issues 1–2, 9 June 2008, Pages 225–229
نویسندگان
María Vilasoa-Martínez, Carina Calaza-Ramos, Julia López-Hernández, María Asunción Lage-Yusty, Perfecto Paseiro Losada, Ana Rodríguez-Bernaldo de Quirós,