凯氏定氮是测定化合物或混合物中总氮量的一种方法。即在有催化剂的条件下，用浓硫酸消化样品将有机氮都转变成无机铵盐，然后在碱性条件下将铵盐转化为氨，随水蒸气蒸馏出来并为过量的硼酸液吸收，再以标准盐酸滴定，就可计算出样品中的氮量。由于蛋白质含氮量比较恒定，可由其氮量计算蛋白质含量，故此法是经典的蛋白质定量方法。
... quantitative determination定量测定 Kjeldahl determination凯氏定氮；凯氏定氮法 gender determination性别决定 ...
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...法与仪器检测方法比较研究-毕业论文参考网 关键词：凯氏定氮；脂肪测定；水分测定；蛋白质测定； [gap=1192]Key words: Kjeldahl; Fat measurement; Determination of Water; Protein Determination ...
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...凯氏定氮 [gap=801]m， Potato Dextrose Agar and Wheat Bran Medium，maize residue，inorganic nitrogen,，the Kjeldahl Nitrogen Determination method ...
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Protein is important indicator of evaluation of milk and dairy products. At present,the common detection methods include Kjeldahl method,Dumas Combustion Method,IR spectroscopy and Rapid Detection methods.
蛋白质是乳及乳制品质量评价的重要指标,其检测方法有凯氏定氮法、杜马斯燃烧法、红外光谱法及多种新兴的快速检测方法。
参考来源 - 乳及乳制品中蛋白质检测技术的研究进展·2,447,543篇论文数据，部分数据来源于NoteExpress
总氮含量测定采用凯氏定氮法。
Micro - Kjeldahl method was developed to determine total nitrogen.
实践证明，改进的凯氏定氮装置完全可以满足常量定氮分析。
The practice proved that the improved equipment of Kjeldadhl method can meet the requirements of constant nitrogen analysis completely.
用凯氏定氮法测得此条件下的蛋白质的水解率可达80.7%。
The protein hydrolysis ratio in this condition determined by Kjeldahl nitrogen method had reached 80.7%.
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