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生物材料中全氮的测定是一个关键性的分析。应用最广的是开氏定氮法。作为常规分析,这个方法的主要缺点在于,完成浸提需时太长。在应用中还会遇到下述困难:(1)对环氮化合物所起化学反应不完全;(2)所形成的硫酸铵很容易造
Determination of total nitrogen in biological materials is a key analysis. The most widely used is Kjeldahl method. As a general analysis, the main disadvantage of this method is that it takes too long to complete the extraction. In the application will encounter the following difficulties: (1) ring nitrogen compounds from the chemical reaction is not complete; (2) the formation of ammonium sulfate is easy to make