Extraction and spectrophotometric determ
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Takeo Katami; Tomokuni Hayakawa; Masamichi Furukawa; Shozo Shibata; Tadashi Hara
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Article
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1986
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Elsevier Science
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English
β 357 KB
## An extraction-spectrophotometric method is described for the determination of traces of zinc with 2-t 2-( 3,5-dibromopyridyl)azo] -5-dimethylaminobenzoic acid. The reagent forms a stable, blue 1:2 zinc/reagent complex that can be extracted into chloroform. The apparent molar absorptivity of the