کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
740737 894186 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel approach for detection of toxic organophosphorus compounds
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Novel approach for detection of toxic organophosphorus compounds
چکیده انگلیسی

We report on a novel approach for the detection of toxic organophosphorus (OP) compounds using electrochemical and fluorescence spectroscopy. An electrochemical sensor device that employs gold (Au) interdigitated electrodes (IDT) on a glass substrate was used for the electrical impedance spectroscopy (EIS) of various OP compounds. Picomolar level detection of ethion, malathion, parathion and fenthion was made possible through EIS performed in the presence of benzodipyrido [3,2-a:2′3′-c] phenazine (BDPPZ). Quantitative detection of ethion, malathion, parathion and fenthion, based on different optical signals produced in the emission spectra, was obtained through fluorescence titration spectroscopy for concentrations as low as 1 pM, 1 nM, 1 μM and 10 μM, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 158, Issue 1, 15 November 2011, Pages 69–74
نویسندگان
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