کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7589350 1492088 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of arsenic extraction in rice samples by Plackett-Burman design and response surface methodology
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Optimization of arsenic extraction in rice samples by Plackett-Burman design and response surface methodology
چکیده انگلیسی
Statistical experimental designs were employed to optimize the extraction condition of arsenic species (As(III), As(V), monomethylarsonic acid (MMA) and dimethylarsonic acid (DMA)) in paddy rice by a simple solvent extraction using water as an extraction reagent. The effect of variables were estimated by a two-level Plackett-Burman factorial design. A five-level central composite design was subsequently employed to optimize the significant factors. The desirability parameters of the significant factors were confirmed to 60 min of shaking time and 85 °C of extraction temperature by compromising the experimental period and extraction efficiency. The analytical performances, such as linearity, method detection limits, relative standard deviation and recovery were examined, and these data exhibited broad linear range, high sensitivity and good precision. The proposed method was applied for real rice samples. The species of As(III), As(V) and DMA were detected in all the rice samples mostly in the order As(III) > As(V) > DMA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 204, 1 August 2016, Pages 283-288
نویسندگان
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