PROCEDURE DETECTING N-AMINOFENOL IN PRODUCTS OF ORGANIC SYNTHESIS, IN MEDICINAL SUBSTANCES AND IN PREPARATIONS ON THEIR BASES Russian patent published in 2003 - IPC

FIELD: analytical chemistry. SUBSTANCE: procedure detecting naminofenol in products of organic synthesis, in medicinal substances and in preparations on their bases is implemented by measurement of their optical density. Procedure includes solution of preparation in water, formation of alkaline medium, addition of organic reagent and measurement of optical density of solution. Salient feature of this approach consists in formation of alkaline medium with pH value lying within limits from 7 to 13, resorcin or phloroglucide are utilized in the capacity of organic reagent. EFFECT: increased sensitivity and shortened time of analysis.