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77年版中国药典收载的氮测定法,即凯氏定氮法是目前比较好的分析方法,定氮法改良而成,分为常量方法和半微量定氮法,它们各具有特点,就试样而言前者检品要比半微量取样多,精确度也不如后者,故凯氏定氮法在实验中得到人们的重视,此法不仅测定蛋白质的含氨基酸的化合物,还可以对象偶氮、亚硝酸盐或硝基、肼等化合物中的氮经过处理后,也能测得良好的结果。现根据定氮法操作时分析
The 77-year version of the Chinese Pharmacopoeia nitrogen determination method, that is, Kjeldahl method is a better analytical method, nitrogen method improved, divided into constant and semi-micro-nitrogen method, they have their own characteristics, try For example, the former seized goods than the semi-micro-sample, the accuracy is not as good as the latter, so Kjeldahl method in the experiment by people’s attention, this method not only determine the protein amino acid compounds, but also the object azo , Nitrite or nitro, hydrazine and other compounds in the nitrogen after treatment, but also measured good results. Now based on the nitrogen method of operation analysis