Polarographic determination of nitrate i
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M.I.N Ximenes; S Rath; F.G.R Reyes
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Article
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2000
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Elsevier Science
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English
β 119 KB
A polarographic method for the determination of nitrate in vegetables is presented. The method is based on the reduction of nitrate to nitric oxide which reacts in solution with colbalt (II) and thiocyanate ions forming an electroactive complex that is reduced at the dropping mercury electrode at -0