کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1985567 1540227 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biosorption using chitosan thiourea polymer as an extraction and preconcentration technique for copper prior to its determination in environmental and food samples by flame atomic absorption spectrometry: Synthesis, characterization and analytical applica
ترجمه فارسی عنوان
جذب بیولوژیکی با استفاده از پلیمر تیووراسیون کیتوزان به عنوان تکنیک استخراج و پیش سازش برای مس قبل از تعیین آن در نمونه های محیطی و مواد غذایی با استفاده از طیف سنج جذب اتمی شعله: سنتز، خصوصیات و کاربرد تحلیلی
کلمات کلیدی
جذب بیولوژیک، پلیمر تیوورا کیتوزان، تعیین مشخصات،
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
The present work describes the synthesis and use of the chitosan thiourea polymer (CT polymer) as a novel biosorbent for copper preconcentration prior to its determination by flame atomic absorption spectrometry (FAAS). CT polymer submitted in the present study was synthesized by the direct reaction between chitosan isolated from penaeus monodon chitin and ammonium thiocyanate, then the chemical structure and morphology of polymer were investigated by spectroscopic measurements, thermal analysis, X-ray diffraction (XRD) and scanning electron microscope (SEM). The results of SEM and XRD show that the prepared CT polymer has rough and hard surface with pores and nanofibers structure in the α-form. The height equivalent to the theoretical plates (HETP), the plates number (N), LOD and LOQ of CT polymer packed column were calculated to be 0.10 ± 0.04 mm, 100 ± 2.02, 0.3 μg L−1and 0.99 μg L−1, respectively. The developed column was employed in combination with FAAS for the analysis of copper in a certified reference material (NRCC-SLRS-4 Riverine water), potato, tea, and rice. Furthermore, the structure of the copper complex with CT polymer was proven with the aid of different spectroscopic and magnetic measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 93, Part A, December 2016, Pages 390-401
نویسندگان
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