在一般参考书中羰基测定部采用羟胺法。但羟胺法也有不足之处,即在用溴酚蓝作指示剂时,等当点有时不明显。到终点时颜色由蓝色变为黄色,且不是突变而是缓变,这样就会引起大误差。我们曾在测定萨利麝香的含量时遇到这种困难,后来就改用电位滴定法测定,取得很好的效果。 In the general reference book carbonyl determination using hydroxylamine method. However, hydroxylamine method also has shortcomings, that is, when using bromophenol blue as an indicator, waiting point is sometimes not obvious. By the end of the color change from blue to yellow, and not a mutation but a gradual change, so it will cause a big error. We have encountered this difficulty in the determination of the content of salty musk, and later on the potentiometric titration method, and achieved good results.