کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1229065 1495231 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new solid phase microextraction method using organic ligand in micropipette tip syringe system packed with modified carbon cloth for preconcentration of cadmium in drinking water and blood samples of kidney failure patients
ترجمه فارسی عنوان
یک روش میکروکساکتازی فاز جامد جدید با استفاده از لیگاند آلی در سیستم سرنگ نوک میکوریپیته بسته بندی شده با پارچه کربنی اصلاح شده برای پیشگیری از کادمیم در آب آشامیدنی و نمونه های خون بیماران نارسایی کلیه
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• A fast and simple miniaturized SPμE method with carbon cloth in a syringe system.
• The retention of Cd was achieved by using 8 hydroxyquinoline as complexing agent.
• A new miniaturizes SPμE method was easy and has less solvent consumption.
• It was applied for determination of Cd in water, blood and urine samples.
• High level of Cd in water causes adverse effects to the kidney failure patients.

A simple and efficient miniaturized solid phase microextraction (M-SPμE) in a syringe system was developed for preconcentration of cadmium (Cd) in environmental and biological samples, followed by flame atomic absorption technique. The syringe system contains the micropipette tip packed with activated carbon cloth, coated with modified magnetic nanoparticles of iron oxide Triton X114 (ACC-NPs). Scanning electron microscopy and energy dispersive spectroscopy used for characterization of the size, morphology and elemental composition of ACC-NPs. The sample solution treated with a complexing reagent 8-hydroxyqunilone (8-HQ), and drawn into the syringe, filled with ACC-MNPs and dispensed manually for 2–10 drawing/discharging cycles. The analyte retained on ACC-NPs in micropipette tip-syringe system were then eluted with different volume of 1.5 mol L−1 HCl by 1–5 drawing/discharging cycles. The syringe system directly couple with FAAS for analysis. The influence of different variables on the extraction efficiency of Cd, including adsorbent dosage, pH, sample volume, eluent volume and drawing/discharging cycles of syringe system were optimized.At optimized extraction conditions, the method showed good linearity in the range of 5–250 μg L−1, with a limit of detection 0.15 μg L−1. Repeatability of the extraction (%RSD) was <5%, n = 5. The validity and accuracy of the method was checked by the certified reference materials. The proposed method was successfully applied for the determination of Cd in different drinking water and biological samples of kidney failure patients and healthy controls.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 138, 5 March 2015, Pages 296–302
نویسندگان
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