Analysis of steroids. Part XVII. A differential spectrophotometric variant of the diethyl oxalate method for the determination of ketosteroid contaminants
- 1 January 1971
- journal article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 96 (1143) , 437-441
- https://doi.org/10.1039/an9719600437
Abstract
A method that consists of spectrophotometry following a Claisen condensation with diethyl oxalate was used for the determination of ketosteroid contaminants. Absorption of the main steroid component was eliminated by a differential spectrophotometric procedure. The proposed method is useful for the determination of ketosteroid contaminants present at the level of 0·1 per cent.Keywords
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