کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
182106 459416 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel method for the anodic stripping voltammetry determination of Sb(III) using silver nanoparticle-modified screen-printed electrodes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A novel method for the anodic stripping voltammetry determination of Sb(III) using silver nanoparticle-modified screen-printed electrodes
چکیده انگلیسی

Carbon screen-printed electrodes (CSPE) modified with silver nanoparticles present an interesting alternative in the determination of antimony using differential pulse anodic stripping voltammetry.Metallic silver nanoparticle deposits have been obtained by direct electrochemical deposition. Scanning electron microscopy measurements show that the electrochemically synthesized silver nanoparticles are deposited in aggregated form. Any undue effects caused by the presence of foreign ions in the solution were also analyzed to ensure that common interferents in the determination of antimony by ASV, such as bismuth, do not influence the electrochemical response of the latter element. The detection limit for Sb(III) obtained was 6.79 × 10−10 M. In terms of reproducibility, the precision of the above mentioned method in %RSD values was calculated at 3.50%. The method was applied to determine levels of antimony in seawater samples and pharmaceutical preparations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 9, Issue 4, April 2007, Pages 820–826
نویسندگان
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