کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
179213 459342 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-enzymatic organophosphorus pesticide detection using gold atomic cluster modified electrode
ترجمه فارسی عنوان
تشخیص آفت کش ها توسط آنزیم های غیر ارگانوفسفره با استفاده از الکترودهای اصلاح خوشه اتمی
کلمات کلیدی
سنسور غیر آنزیمی، خوشه های اتمی طلا، سموم دفع آفات فسفر، ولتاژ سنج میدان میدان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• AuACs modified electrode for OPs pesticide detection for the first time.
• Enhanced activity & sensitivity than bulk Au & AuNPs.
• Lowering the reduction potential OPs than bulk and nano-gold counterparts.
• Achieved a very low detection limit of 0.65 nM.
• Suitable for fast, simple & sensitive analysis of OPs in environmental samples.

In this work, we report the detection of organophosphorous pesticides, particularly methyl parathion using gold atomic clusters (AuACs) non-enzymatically employing square wave voltammetry (SWV). Synthesis of surfactant stabilized gold atomic clusters on a polycrystalline gold electrode was executed by a simple potentiodynamic cyclic voltammetry technique. The clusters are characterized using UV–visible spectroscopy and transmission electron microscopy techniques. The electroanalytical results exhibited linear behavior in the micro (10–80 μM) as well as nanomolar (1–10 nM) concentration ranges and the detection limit is found to be 0.65 nM (S/N = 3). The proposed sensor matrix is evaluated with real samples and the results are in good agreement with high performance liquid chromatographic (HPLC) analysis.

Non-enzymatic organophosphorus pesticide detection using gold atomic clusters exhibits excellent activity along with enhanced sensitivity towards the reduction of methyl parathion.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 38, January 2014, Pages 15–18
نویسندگان
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