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http://dx.doi.org/10.5806/AST.2008.21.2.129

Analysis for explosives in contaminated soil using the electrochemical method  

Ly, Suw Young (Biosensor Research Institute, Seoul National University of Technology)
Publication Information
Analytical Science and Technology / v.21, no.2, 2008 , pp. 129-134 More about this Journal
Abstract
Cyclic voltammetry (CV) and square wave stripping voltammetry (SW) analysis of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) using the double-stranded ds calf thymus (DNA) mixed in carbon nanotube paste electrode (PE) were provided. The optimum analytical conditions were determined and the peak potential was 0.2 V vs. Ag/AgCl. The linear working ranges of CV (50-75 ug/L) and SW (5-80 ng/L) were obtained. The precisions of RSD in the 10 ug/L was 0.086% (n=15) and the detection limit was 0.65 ng/L ($2.92{\times}10^{-12}M$) (S/N=3) with 300 s adsorption time at the optimum condition. The method was used to determine the presence of explosive chemicals in contaminated soil samples.
Keywords
voltammetry; DNA; carbon nanotube; RDX;
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