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- E-ISSN 2288-8985
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Voltammetric measurements of iron using an infrared photodiode electrode
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2007, v.20 no.4, pp.289-295
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(2007). Voltammetric measurements of iron using an infrared photodiode electrode. Analytical Science and Technology, 20(4), 289-295.
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Abstract
A simple electric circuit of an infrared photodiode electrode (IPDE) was utilized to monitor iron using square-wave (SW) anodic stripping voltammetry (SV) and cyclic voltammetry (CV). The optimum analytical conditions were determined and were compared with those of common working electrodes. The comparison showed that CV is more sensitive and convenient to use than the common voltammetry methods. At the optimized conditions, the working ranges of 0.1- to 0.8- and 0.85- to 6.0 mg/L iron was obtained. Relative standard deviation of 15 measurements of iron (0.4 mg/L) was 0.09%. The analytical detection limit was found to be <TEX>$80{\pm}0.6ug/L$</TEX>, which was applied to iron in waste water.
- keywords
- Iron, voltammetry, infrared, photodiode
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