1.The colorimetry of sulfuric acid and p-Dimethylaminobenzaldehyde used to determinate the fusel oil of alcoholic liquor,but it occurs deviation.
测定白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。
2.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.