کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4908077 1426590 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rapid and sensitive determination of tartrazine using a molecularly imprinted copolymer modified carbon electrode (MIP-PmDB/PoPD-GCE)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Rapid and sensitive determination of tartrazine using a molecularly imprinted copolymer modified carbon electrode (MIP-PmDB/PoPD-GCE)
چکیده انگلیسی
A novel molecularly imprinted copolymers sensor for fast and direct determination of tartrazine (TZ) was studied. The copolymers were immobilized on the surface of the glassy carbon electrode (GCE) directly via electropolymerization with m-dihydroxybenzene (m-DB) and o-phenylenediamine (o-PD) as monomers. After elution, the copolymer was filled with nanopores that can specially bounds with tartrazine molecule. The developed sensor (MIP-PmDB/PoPD-GCE) determinates tartrazine specifically and quickly in the soft drinks sample without pretreatment. The linear relationship between the currents and the tartrazine concentration was 5.0 nM-1.1 μM, and a sensitivity limit of 3.5 nM was achieved. The whole process cost less than 5 min. The success practical application of MIP-PmDB/PoPD-GCE sensor on analyzing TZ in soft drink samples offers a promising potential on fast directly determination of tartrazine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 785, 15 January 2017, Pages 90-95
نویسندگان
, , , , , ,