The using and choosing principle and basis of the colorimetric ware in the spectrophotometric methods are introduced as well as the correct using method and maintenance.
介绍分光光度法中比色皿的选择原则和依据，以及正确的使用和维护方法。
The stability of the red pigment from Prunus tomentosa Thunb was investigated by spectrophotometric methods in this paper, in order to provide a theoretical basis for the comprehensive utilization.
利用分光光度法系统研究了毛樱桃果实红色素的稳定性，从而为该色素的开发和利用提供科学依据。
Spectrophotometric method and gas chromatography were the authorized national standard analytical methods to fusel oil.
国家标准规定分光光度法和气相色谱法为杂醇油的分析方法。
Methods: We distinguished the bee glue by the thin layer chromatography method, determined its total flavanone content in the preparation by the spectrophotometric method.
方法：用薄层色谱法鉴别蜂胶；用分光光度法测定制剂中蜂胶总黄酮的含量。
This paper has studied and compared three methods of determination of cardiovascular drug, Nitrendipine: Cyanide selective electrode method, single sweep polarography and UV-spectrophotometric method.
本文研究并比较了三种测定抗心血管病药尼群地平的方法：氰离子选择电极法、示波极谱法和紫外分光光度法。
A relatively systematic review is carried out on the basic principles, reagents, methods and applications of indirect and direct spectrophotometric determination of sulphate.
本文就硫酸根的间接及直接光度测定的基本原理、试剂、方法和应用等作了较为系统的评述。
The analytical results are consistent with those by spectrophotometric and polarographic methods.
所得结果与分光光度法和极谱法对照，结果一致。
Methods The pectin content in pectin extract was determined directly by carbazole and sulphuric acid spectrophotometric method, and the measurement was corrected by correction factor.
方法采用咔唑硫酸分光光度法直接测定果胶提取液中的果胶含量，测定结果再用校正因子校正。
Methods The pectin content in pectin extract was determined directly by carbazole and sulphuric acid spectrophotometric method, and the measurement was corrected by correction factor.
方法采用咔唑硫酸分光光度法直接测定果胶提取液中的果胶含量，测定结果再用校正因子校正。
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