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KMID : 0385520080210020129
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Analytical Science & Technology
2008 Volume.21 No. 2 p.129 ~ p.134
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Analysis for explosives in contaminated soil using the electrochemical method
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Lee Suw-Young
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Abstract
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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 (2.92×10?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.
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KEYWORD
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voltammetry, DNA, carbon nanotube, RDX
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