The article discussed the changing relation between total alkalinity content and titration equivalence point and changed situation of methyl orange in the different PH value color.
本文讨论了水样中总碱度含量与滴定等当点的变化关系和甲基橙在不同PH值时的颜色变化情况。
Furthermore, the distributing state of different type of carotenes in carrot and the relationship between the color of carrot and the total content of carotenes in carrot were studied too.
胡萝卜中类胡萝卜素的分布状况，以及胡萝卜中类胡萝卜素含量与胡萝卜色泽的相关性。
The study was conducted to investigate the total pigment and pigment components of different breeds of color carp by spectrophotometer and thin-layer chromatography.
用光谱和色谱两种方法对锦鲤的总色素和色素组分进行了研究。
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