colorimetry

Available acidity is analyzed by pH indicator paper, standard colorimetry or acidimeter;

有机酸可采用比法、纸上层析和气相谱进行分析。

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法,但测定常有误差。

Through researching into the detecting method of the content of carboxylic acid salt, we set up two kinds of adaptive methods: DDC colorimetry method and parvafacies method.

对新的检测方法评价结果表明,该方法准确度高、精密度好、加标回收率好;

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.

本度学原理说明三原意,并详细论述活性染料及分散染料三原的合成和筛选原则。