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安乃近注射液常微带黄色,日久常转深黄色。现在我们已可制造完全无色的,放置日久亦不变色。兹将变色原因的试验总结如下:1.变色与氧气关系——安乃近溶液以100℃加热半小时,即变微黄色。假使在溶液中滴加双氧水,则即刻变成深黄色。如果在制造时采用惰性气体灌充,则所得成品即使加热亦不致变色,这说明氧气的存在对变色有极大的关系。
Ambroxel injection often microstrip yellow, day to day often dark yellow. Now that we have made it completely colorless, it does not change color over time. The reasons for the discoloration will be summarized as follows: 1. The relationship between color change and oxygen - Metamorphic solution was heated to 100 ℃ for half an hour, that is slightly yellow. If hydrogen peroxide is added dropwise to the solution, it becomes dark yellow immediately. If filled with inert gas at the time of manufacture, the finished product does not discolor even when heated, indicating that the presence of oxygen has a great relationship to discoloration.