微波消解——凯式定氮法测定牛奶中蛋白质含量

DETERMINATION OF PROTEIN CONTENT IN MILK BY MICROWAVE DIGESTION-KJELDAHL

建立微波消解—凯式定氮法测定牛奶中蛋白质含量的方法,采用密闭微波消解样品,优化微波消解条件。方法的相对标准偏差RSD为1.82%,回收率在98.8%～101.7%之间。

A method of microwave digestion-kjeldahl for the determination of protein content in milk was developed. Microwave digestion conditions were optimized. The RSD is 1.82 %, the recovery is 98.8 %-101.7 %.