کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
178926 459327 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Silver particle-decorated carbon paste electrode based on ionic liquid for improved determination of nitrite
ترجمه فارسی عنوان
الکترودهای رب کربنی با ذرات نقره ای بر پایه مایع یونی برای تعیین میزان نیتریت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Silver sub-micrometre particle-decorated carbon-based ionic liquid paste electrode
• Two-step reduction/oxidation electrode conditioning protocol
• Wide linear range, favourably low LOD, and excellent repeatability for nitrite determination

A simple silver particle-modified carbon paste electrode is proposed for the determination of low concentration levels of nitrite ions. The electrode consists of a carbon powder decorated with silver sub-micrometre particles (AgPs) and a hydrophobic ionic liquid trihexyltetradecylphosphonium chloride as a binder. It has been shown that AgPs exhibit a strong electrocatalytic effect on the nitrite oxidation. For optimal electroanalytical performance the electrode was conditioned via silver oxidation/reduction cycle. The electrode revealed a linear square-wave voltammetric response in a wide examined concentration range of 0.05 to 1.0 mmol L− 1, limit of detection (LOD) of 3 μmol L− 1 and excellent repeatability with RSD of 0.3%.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 52, March 2015, Pages 45–48
نویسندگان
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