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pubmed-article:2221402pubmed:issue7lld:pubmed
pubmed-article:2221402pubmed:dateCreated1990-11-19lld:pubmed
pubmed-article:2221402pubmed:abstractTextA polarographic investigation of the copper-3-hydroxy-1-p-sulphonatophenyl-3-phenyltriazene (HSPT) complex in 0.05 M sodium tetraborate medium is described and a simple and sensitive single-sweep polarographic method for the determination of trace amounts of copper in biological samples is proposed. The complex was shown to be Cu(HSPT)2 with log beta' = 11.38. The polarographic wave is caused by the reduction of copper(II) in the adsorbed complex to copper amalgam on the surface of a mercury electrode. The current peak is directly proportional to the concentration of copper in the range 8.0 x 10(-9)-4.0 x 10(-6) M and the detection limit is 5.0 x 10(-9) M.lld:pubmed
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pubmed-article:2221402pubmed:authorpubmed-author:ZhaoZ FZFlld:pubmed
pubmed-article:2221402pubmed:authorpubmed-author:GaoZ QZQlld:pubmed
pubmed-article:2221402pubmed:authorpubmed-author:ShengL QLQlld:pubmed
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pubmed-article:2221402pubmed:volume115lld:pubmed
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pubmed-article:2221402pubmed:pagination951-3lld:pubmed
pubmed-article:2221402pubmed:dateRevised2004-11-17lld:pubmed
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pubmed-article:2221402pubmed:year1990lld:pubmed
pubmed-article:2221402pubmed:articleTitleSingle-sweep polarography of the copper(II)-3-hydroxy-1-p-sulphonatophenyl-3-phenyltriazene complex and its analytical applications.lld:pubmed
pubmed-article:2221402pubmed:affiliationDepartment of Chemistry, Wuhan University, Hubei, People's Republic of China.lld:pubmed
pubmed-article:2221402pubmed:publicationTypeJournal Articlelld:pubmed