品红酸
... Magendie-Hertwig sign 马-赫二氏征,马让迪氏征(一眼内下转,他... magenta acid 品红酸... magenta tongue 洋红舌...
本文研究了分光光度法测定甲醛中的变色酸法和品红亚硫酸法,同时对这两种方法进行了比较。
Methods The content of formaldehyde in rongalite was determined by sulfurous acid, magenta and acetylacetone spectrophotometry respectively.方法采用品红亚硫酸法和乙酰丙酮法测定吊白块中甲醛含量,并计算样品中吊白块的含量。
It is produced by the reduction of fuchsin by sulfurous acid, and is oxidized by aldehydes and ketones, restoring the magenta color of the fuchsin.配法是用亚硫酸使品红溶液还原,若有醛酮类存在时便使之氧化而重新呈现品红本身的洋红色。