The using and choosing principle and basis of the colorimetric ware in the spectrophotometricmethods 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。
2
The stability of the red pigment from Prunus tomentosa Thunb was investigated by spectrophotometricmethods 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。
3
Spectrophotometric method and gas chromatography were the authorized national standard analytical methods to fusel oil.