クロモトロプ酸によるアルカロイド類の微量検出及び定量法について

抄録

Colorimetric determination of alkaloids possessing methylenedioxy group by chromotropic acid was examined and this was found to effect simplification of procedures and microdetermination compared to the existing phloroglucinol method. This method makes it possible to determine the substances in an amount 5-10γ/cc. as formaldehyde and the accuracy is within an error of ±1%. This method is also advantageous in that colored compounds and substances containing impurities could be determined in an almost colorless state by high dilution.