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Determination of Fe(III) Using Diamond Paste Based Electrodes

التفاصيل البيبلوغرافية
العنوان: Determination of Fe(III) Using Diamond Paste Based Electrodes
المؤلفون: Jacobus F. van Staden, Semere Ghebru Bairu, Raluca-Ioana Stefan
المصدر: Instrumentation Science & Technology. 31:411-416
بيانات النشر: Informa UK Limited, 2003.
سنة النشر: 2003
مصطلحات موضوعية: Detection limit, Materials science, Synthetic diamond, General Chemical Engineering, Metallurgy, Analytical chemistry, Diamond, engineering.material, Electrochemistry, law.invention, Ion, Monocrystalline silicon, law, Electrode, engineering, Differential pulse voltammetry, Instrumentation, General Environmental Science
الوصف: Voltammetric characterization of new types of electrochemical sensors, based on diamond paste, was performed for Fe(III). The construction of electrodes was done using monocrystalline diamond [natural diamond 1 µ, synthetic diamond 50 µ (synthetic‐1), and synthetic diamond 1 µ (synthetic‐2)] powder and paraffin oil. Differential pulse voltammetry (DPV) was used to study the variation of peak height with the concentration of Fe(III), at 300 mV (vs. Ag/AgCl). The linear concentration ranges were between 10−12 and 10−9 mol/L for the natural diamond with detection limit of 10−13 mol/L; between 10−7 and 10−5 mol/L for synthetic‐1 with a detection limit of 10−8 mol/L; and between 10−11 and 10−5 mol/L for synthetic‐2, with a detection limit of 10−12 mol/L. Fe(III) was determined from four water samples with relative standard deviation values less than 1%. Ions such as, Fe(II), Cr(III), Cr(VI), Mg(II), Mn(II), Cu(II), and Zn(II) do not interfere in the measurements.
تدمد: 1525-6030
1073-9149
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::1c869b6e4fe7a157509d2e110953f394
https://doi.org/10.1081/ci-120025575
رقم الأكسشن: edsair.doi...........1c869b6e4fe7a157509d2e110953f394
قاعدة البيانات: OpenAIRE
الوصف
تدمد:15256030
10739149