Extractionβspectrophotometric determinat
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Tadao Sakai
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Article
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1983
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Elsevier Science
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English
β 424 KB
A method is described for the determination of benzethonium and benzalkonium compounds (l-5 X 10" M) based on the formation of ion-associates with bromocresol green (BCG) and quinine in 1,2-dichloroethane. Benzethonium and benzalkonium are extracted quantitatively after the formation of a new type