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http://dx.doi.org/10.5806/AST.2007.20.4.289

Voltammetric measurements of iron using an infrared photodiode electrode  

Ly, Suw Young (Biosensor Research Institute, Seoul National University of Technology)
June, Young Sam (Department of Chemistry Korea University)
Lee, Hyun Ku (Biosensor Research Institute, Seoul National University of Technology)
Kwak, Kyu Ju (Department of Chemistry, Yonsei University)
Kim, Kun Woo (Advanced Scientific Experiment group in DaeJin High school)
Kim, Jong Hyoung (Advanced Scientific Experiment group in DaeJin High school)
Jeong, Ho Young (Advanced Scientific Experiment group in DaeJin High school)
Kim, Bong Kyun (Advanced Scientific Experiment group in DaeJin High school)
Chun, Seok Joo (Advanced Scientific Experiment group in DaeJin High school)
Chang, Jin Won (Advanced Scientific Experiment group in DaeJin High school)
Publication Information
Analytical Science and Technology / v.20, no.4, 2007 , pp. 289-295 More about this Journal
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 $80{\pm}0.6ug/L$, which was applied to iron in waste water.
Keywords
Iron; voltammetry; infrared; photodiode;
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