کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7591564 | 1492103 | 2015 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of the total content of some sulfonamides in milk using solid-phase extraction coupled with off-line derivatization and spectrophotometric detection
ترجمه فارسی عنوان
تعیین مقدار کل برخی از سولفونامید ها در شیر با استفاده از استخراج جامد فاز همراه با مشتق شده خارج از خط و تشخیص اسپکتروفتومتر
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A simple screening method for isolation and determination of the total content of some sulfonamides in milk using solid-phase extraction and a color reaction is described. This procedure is based on SPE of sulfonamides on hypercrosslinked polystyrene, elution with acetonitrile and off-line derivatization with p-dimethylaminocinnamaldehyde in acetonitrile followed by spectrophotometric determination. The reaction produces intense violet-red color and can be easily used both for quantitation of sulfonamides using spectrophotometry and for naked-eye semi-quantitative estimation. Maximum absorption of the reaction product was determined at 540 nm. The Lambert-Beer's law was obeyed in the range of 0.07-3.0 μg mLâ1 in eluate, with the squared correlation coefficient (R2) of 0.9875-0.9995, and the relative standard deviation (RSD) of 3-4%. The limits of SAs detection using preconcentration were of 0.02-0.03 μg mLâ1. The proposed method can be recommended as a routine screening method for quantitation of sulfonamides in milk.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 188, 1 December 2015, Pages 51-56
Journal: Food Chemistry - Volume 188, 1 December 2015, Pages 51-56
نویسندگان
Stanislava G. Dmitrienko, Elena V. Kochuk, Veronika V. Tolmacheva, Vladimir V. Apyari, Yury A. Zolotov,