کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7586039 | 1492045 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selective and simultaneous determination of indigo carmine and allura red in candy samples at the nano-concentration range by flow injection analysis with multiple pulse amperometric detection
ترجمه فارسی عنوان
تعیین انتخاب و همزمان قرمز هندی و آلورا قرمز در نمونه های آب نبات در محدوده غلظت نانو توسط تحلیل جریان تزریق با تشخیص آمپومتریک چند پالس
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel, unique electroanalytical method was developed for the simultaneous quantification of the dyes indigo carmine (IC) and allura red (AR) in candies by coupling flow injection analysis and multiple pulse amperometry with a cathodically pretreated boron-doped diamond electrode, using 0.30â¯molâ¯Lâ1 H2SO4 as supporting electrolyte. A dual-potential waveform was employed, causing the electrooxidation of either IC solely or IC and AR simultaneously. Thence, subtraction of current signals was used to quantify IC and AR in the concentration ranges of 70.0-1000â¯nmolâ¯Lâ1 and 40.0-770â¯nmolâ¯Lâ1, with limits of detection of 40.0â¯nmolâ¯Lâ1 and 7.0â¯nmolâ¯Lâ1, respectively. The proposed method, which permits up to 153 determinations per hour with good precision, was successfully applied in the quantification of these dyes in samples of commercial candies; their obtained contents were similar (at a 95% confidence level) to those from a comparative HPLC method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 247, 1 May 2018, Pages 66-72
Journal: Food Chemistry - Volume 247, 1 May 2018, Pages 66-72
نویسندگان
PatrÃcia B. Deroco, Roberta A. Medeiros, Romeu C. Rocha-Filho, Orlando Fatibello-Filho,