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http://dx.doi.org/10.12925/jkocs.2014.31.3.472

Detecting gold by voltammetric handhold systems  

Kim, Nack-Joo (Dept. of Fine Chemistry, Seoul National Univ. of Science & Technology)
Choi, Dal-Woong (Department of Public Health Sciences, Graduate School, Korea University)
Yoo, Hai-Soo (Korea Institute Ocean Science Technology)
Lee, Kyung (Excavation Literature and Ancient Scripts Research Institute, Fudan University)
Lee, Chang-Hyun (Division of General Education, Pyeongtaek University)
Ly, Suw-Young (Biosensor Research Institute)
Kim, Tae-Yun (Biosensor Research Institute)
Publication Information
Journal of the Korean Applied Science and Technology / v.31, no.3, 2014 , pp. 472-477 More about this Journal
Abstract
A voltammetric investigation of Au assay was conducted at a low cost, using Nafion and DNA immobilized on a graphite Pencil working electrode (NDP) with a black lead counter and reference. The following optimal parameters were found: 0.4 V amplitude, 500 Hz frequency, -0.7 V initial potential, and 0.015 V increment potential. These optimal conditions were also applied to sand obtained from the river site. The aforementioned technique is simpler and less costly compared to the common voltammetry and spectrophotometric methods.
Keywords
gold; graphite nafion; voltammetry; alluvial gold;
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