SD90762 residual chlorine measuring instrument using photoelectron colorimetric detection principle to replace the traditional visual colorimetry.
SD90762余氯测定仪采用光电子比色检测原理取代传统的目视比色法。
Making standard solution as reference and preparing the simulation of reagents makes it possible that content of and cyanide in the sample can be measured with visual colorimetry.
制作标准溶液作为参比，制备模拟试剂，实现用目视比色法测定样品中微量磷和氰化物含量。
Analyzed qualitatively and determined quantitatively the exist and relative content of aloe dry powder by visual colorimetry, which using product of coloured complex and colour difference.
研究了利用有色复合物的生成及颜色差别，定性鉴别和目视比色定量测定芦荟干粉的存在和相对含量的方法。
Analyzed qualitatively and determined quantitatively the exist and relative content of aloe dry powder by visual colorimetry, which using product of coloured complex and colour difference.
研究了利用有色复合物的生成及颜色差别，定性鉴别和目视比色定量测定芦荟干粉的存在和相对含量的方法。
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