Extractive-spectrophotometric determinat
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Carmen Molins Legua; Pilar Campíns Falcó; Adela Sevillano Cabeza
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Article
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1993
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Elsevier Science
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English
⚖ 732 KB
Sodium 1,Znaphthoquinone 4-sulphonate (NQS) was tested as a reagent for amphetamine in order to develop an extractive-spectrophotometric method for the determination of the drug in urine samples. The standard additions method showed the absence of proportional bias error whereas the Youden method an