凯氏定氮仪测定大豆水溶性蛋白含量的影响因素  

Factors Influencing of Determination of Soybean Water-Soluble Protein Content by Kjeldahl Nitrogen Analyzer

作　　者：林秀 Lin xiu(Institute of Grain and Oil Quality Supervision and Test of FuJian Province,Fuzhou,Fujian 350012,China)

机构地区：[1]福建省粮油质量监测所,福建福州350012

出　　处：《福建分析测试》2020年第3期41-44,共4页Fujian Analysis & Testing

摘　　要：凯氏定氮法是测定有机物中总氮含量及蛋白浓度的经典方法。本文以FOSS KT8400凯氏定氮仪为例,在熟悉其工作原理的基础上,对其可能引起大豆水溶性蛋白含量结果误差的影响因素进行了分析,为提高检测效率及定氮结果的准确度提供参考。Kjeldahl Nitrogen method was a classical method for determining total nitrogen content and protein concentration in organic matter.The paper was based on familiarity with how the FOSS KT8400 Kjeldahl Nitrogen analyzer work,to ana⁃lyzed the influencing factors that may cause the error of soybean water-soluble protein content,and provided reference for improving detection efficiency and accuracy of nitrogen determination results.

关 键 词：凯氏定氮仪 大豆 水溶性蛋白 影响因素 

分 类 号：O656.3[理学—分析化学]