کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
181947 459413 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Amperometric determination of chemical oxygen demand using boron-doped diamond (BDD) sensor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Amperometric determination of chemical oxygen demand using boron-doped diamond (BDD) sensor
چکیده انگلیسی

A new application of boron-doped diamond (BDD) electrode was developed for detecting chemical oxygen demand (COD) by amperometric method. The effects of some basic experimental parameters including pH and applied potential on the response of the BDD electrode were investigated and the optimal operating conditions were obtained. In the COD tests of standard samples, a wide linear range of 20–9000 mg l−1 COD and a low detection limit of 7.5 mg l−1 COD were well established with the present approach. Additionally, the BDD sensor was successfully employed to determine the COD of real samples from various chemical or pharmaceutical wastewaters and the performance still kept stable after over 400 measurements. The results obtained indicated that, as compared with the conventional COD determination techniques, the proposed sensor was an environmentally friendly method with the advantages of short analysis period, simplicity, and no requirement of complicated sample pretreatment even for a sample containing relatively high concentration of organic pollutants.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 9, Issue 9, September 2007, Pages 2280–2285
نویسندگان
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