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Magnetic Solid ‒ Phase Extraction of Trace Amounts of Nickel in Food Samples Using Polydopamine Coated Fe3O4 Nanoparticles | ||
| Iranian Journal of Analytical Chemistry | ||
| مقاله 1، دوره 4، شماره 2، آذر 2017، صفحه 1-9 اصل مقاله (1.37 M) | ||
| نوع مقاله: Full research article | ||
| نویسندگان | ||
| Mohsen Nekoeinia* 1؛ Saeed Yousefinejad2؛ Mohammad Reza Abdi1؛ Behnam Ebrahimpour3 | ||
| 1Department of Chemistry, Payame Noor University, P.O.BOX 19395-3697 Tehran, Iran | ||
| 2. Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran | ||
| 3Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran | ||
| چکیده | ||
| A simple and a green methodology has been developed for the preconcentration of Ni2+ based on the adsorption of its dimethylglyoximate complex on polydopamine coated Fe3O4 nanoparticles. The adsorbed complex was easily desorbed using 1.0 mL of CHCl3 and the concentration of nickel was determined by UV-Vis spectrophotometry. The effects of pH, sorbent mass, extraction time on the sorption of nickel dimethylglyoximate complex were investigated using Box–Behnken design. In optimal experimental conditions, a wide linear range of 5.0-600.0 μg/L with detection limit of 1.49 μg/L was obtained. The proposed method was applied for extraction and preconcentration of Ni2+ in various food samples and the results were compared with the official AOAC method. | ||
| کلیدواژه‌ها | ||
| nickel؛ Polydopamine؛ Magnetic Solid‒Phase Extraction؛ Nanosorbents؛ Dimethylglyoxime | ||
| عنوان مقاله [English] | ||
| استخراج فاز جامد مغناطیسی مقادیر ناچیز نیکل در نمونههای مواد غذایی با نانوذرات اکسید آهن پوشش داده شده با پلی دوپامین | ||
| نویسندگان [English] | ||
| مسعود نکوئی نیا1؛ سعید یوسف نژاد2؛ محمدرضا عبدی1؛ بهنام ابراهیم پور3 | ||
| 1بخش شیمی، دانشگاه پیام نور، صندوق پستی 3697-19395، تهران، ایران | ||
| 2گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی شیراز، شیراز، ایران | ||
| 3بخش شیمی، دانشگاه تربیت مدرس تهران، تهران، ایران | ||
| چکیده [English] | ||
| یک روش ساده و سبز برای پیش تغلیظ +Ni2 بر اساس جذب سطحی کمپلکس دی متیل گلی اکسیمات آن بر روی نانوذرات اکسید آهن پوشش داده شده با پلی دوپامین توسعه یافت. کمپلکس جذبشده به آسانی با 1 میلی لیتر کلروفرم واجذب و غلظت نیکل با اسپکتروفتومتری مرئی- ماورا بنفش تعیین شد. اثر pH، میزان جاذب و زمان استخراج بر روی جذب کمپلکس نیکل دی متیل گلی اکسیمات بوسیله روش طراحی آزمایش باکس- بنکن مورد بررسی قرار گرفت. در شرایط بهینه، محدوده وسیع خطی از 0/600 -0/5 میلی گرم بر لیتر با حد تشخیص 49/1 میلی گرم بر لیتر بدست آمد. روش پیشنهادی برای استخراج و پیش تغلیظ نیکل در نمونههای مختلف مواد غذایی بکار برده شد و نتایج آن با روش رسمی AOAC مقایسه گردید. | ||
| کلیدواژه‌ها [English] | ||
| نیکل, پلی دوپامین, استخراج فاز جامد مغناطیسی, نانو جاذب, دی متیل گلی اکسیم | ||
| مراجع | ||
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