کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1228211 | 968452 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A reproducible, rapid and inexpensive Folin–Ciocalteu micro-method in determining phenolics of plant methanol extracts
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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: A reproducible, rapid and inexpensive Folin–Ciocalteu micro-method in determining phenolics of plant methanol extracts A reproducible, rapid and inexpensive Folin–Ciocalteu micro-method in determining phenolics of plant methanol extracts](/preview/png/1228211.png)
چکیده انگلیسی
A new combination among time, temperature, alkali and alcohol is described for the spectrophotometric determination of small concentrations of phenolics in methanol extracts from plant. It is a variation of the classical Folin–Ciocalteu (F–C) method, but the reaction conditions are optimized in order to eliminate methanol interferences in the assay. Alcohol concentration and reaction time limits have been evaluated as 4% methanol (v/v) and 20 min at 40 °C, using a 5% (w/v) sodium carbonate solution. This F–C micro-method is reproducible, quick, inexpensive and particularly helpful if it works with numerous samples or on a small scale, such as during the setting up of an experimental procedure of alcoholic extractions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 91, Issue 1, January 2009, Pages 107–110
Journal: Microchemical Journal - Volume 91, Issue 1, January 2009, Pages 107–110
نویسندگان
Nunzia Cicco, Maria T. Lanorte, Margherita Paraggio, Mariassunta Viggiano, Vincenzo Lattanzio,