کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5156508 1500581 2017 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of chitosan based magnetic molecularly imprinted polymers for selective separation and spectrophotometric determination of histamine in tuna fish
ترجمه فارسی عنوان
سنتز پلیمرهای مغناطیسی مبتنی بر کیتوزان برای جداسازی انتخابی و تعیین اسپکتروفتومتریک هیستامین در ماهی تن
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
A novel chitosan molecularly imprinted polymers (CHI/MIPs) coated on Fe3O4 magnetic nanoparticles (MNPs) for selective solid phase extraction (SPE) of histamine (His) was synthesized by cross-linking of CHI with (3-Glycidyloxypropyl) trimethoxysilane (GPTMS) in the presence of His as the template molecule, and GPTMS/MNPS. Synthesized sorbent was characterized by scanning electron microscopy, X-ray diffraction, FT-IR and via adsorption kinetics and adsorption isotherms. The application of this sorbent was investigated in preconcentration and spectrophotometric determination of His by charge transfer complexation. The method is based on the adsorption of His on CHI/MMIPs and subsequent reaction of desorbed His with 2,3-Dichloro 5,6-dicyano-p-benzoquinone (DDQ) reagent for final spectrophotometric detection. The experimental parameters affecting separation efficiency and spectrophotometric determination were optimized. Under optimum conditions and at an analytical wavelength of 468 nm, the calibration plot is linear in the 5.0-160.0 ng mL−1 concentration range, and the limit of detection (estimated at S/N = 3) is 1.5 ng mL−1. The intra-day and inter-day precisions are in the range from 2.9 to 4.1%. The method was successfully applied for determination of His in spiked tuna fish samples where it gave recoveries ranging from 94.3 to 107.0%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 177, 1 December 2017, Pages 306-314
نویسندگان
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