کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5448327 | 1511775 | 2017 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and electrochemical properties of KPb4âxCax(PO4)3 (0 â¤Â x â¤Â 1.5) for oxidation of cadmium at graphite electrode
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Chemically modified carbon paste electrode (CPE) for cadmium (II) analysis has been constructed by mixing KPb4âxCax(PO4)3 (0 â¤Â x â¤Â 1.5) (CaLA) and graphite powder. The lacunar apatite was synthesized using solid reaction and characterized by X-ray diffraction (XRD), infrared spectroscopy (IR) and Raman spectroscopy. The refinement study was carried out using Rietveld method where the obtained results show a good agreement between the observed and calculated patterns. The detection of cadmium (II) was investigated in acetate buffer (pH 4.5) using differential pulse anodic stripping voltammetry (DPASV). The limit of detection obtained under the optimized experimental conditions was 5.35 Ã 10â7 mol Lâ1 with a relative standard deviation of 2.37%. Possible interferences were tested and evaluated in 5.0 Ã 10â5 mol Lâ1 cadmium (II) in the presence of other inorganic ions. Finally, the proposed method was successfully applied to determine cadmium (II) in seawater and mussel samples. Hence, the satisfactory results confirm the applicability of this sensor in practical analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 188, 15 February 2017, Pages 75-85
Journal: Materials Chemistry and Physics - Volume 188, 15 February 2017, Pages 75-85
نویسندگان
Sara Lahrich, Bouchaib Manoun, Moulay Abderrahim El Mhammedi,