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Radioactive uranium measurement in vivo using a handheld interfaced analyzer
Author(s) -
Ly Suw Young,
Lee JinHui,
Jung Dong Ho
Publication year - 2010
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.131
Subject(s) - spectrum analyzer , detection limit , uranium , stripping (fiber) , radiochemistry , environmental science , chemistry , analytical chemistry (journal) , materials science , chromatography , metallurgy , physics , optics , composite material
A trace uranium (U) detection method was developed with a handheld voltammetric analyzer that was the size of a mobile phone, with working sensors made of simple graphite pencil electrode (PE). The optimum stripping voltammetric conditions were sought, and the following results were obtained: 0.0 to 0.08 ng/L working ranges and a statistically relative standard deviation of 1.78% (RSD; n = 15) at a 10.0 µg/L U spike. The experiment accumulation time used was only 150 s. Under this condition, the diagnostic detection limit approached 0.007 ng/L. The method was applied to soil of a natural rock in a radioactive mineralogy site. Earthworms that resided at this site were assayed. The method was found to be applicable in biological diagnosis or in real‐time in vivo survey. Environ. Toxicol. Chem. 2010;29:1025–1030. © 2010 SETAC