QUANTITATIVE SPECTROPHOTOMETRIC METHOD FOR DETERMINING AND IDENTIFYING ORTHO- CHLOROBENZILIDENEMALONIC ACID DINITRILES IN EXTRACTS

摘要

FIELD: analytical methods. SUBSTANCE: alcoholic extract is mixed with 35-45% aqueous solution of sodium hydroxide and 0.04-0.6% alcoholic solution of m- dinitrobenzene, whereupon, 20 min later, reaction mixture is subjected to spectrophotometric determination. EFFECT: simplified procedure. 3 cl, 3 dwg, 1 tbl