Based on the colorimetry mechanism,the meaning oftrichroism is studied,as well as the synthetic and selecting principles of trichroism ofreactive and disperse dyes in particular.

本文从色度学理说明色意义,并详细论述料及分散料色的合成和则。

The colorimetry of sulfuric acid and p-Dimethylaminobenzaldehyde used to determinate the fusel oil of alcoholic liquor,but it occurs deviation.

测定白酒中杂醇油常采用硫酸-对二甲胺基苯甲醛比色法,但测定常有误差。