Use the skim milk and heat it for a while,add some protein precipitator to deposit the protein,according to the volume of the deposit,we can know the concentration of protein in milk.

• 对牛乳进行脱脂、水浴加热后加入一定量的蛋白质沉淀剂,离心分离,根据沉淀体积直接读取蛋白质含量。