采用EDTA络合滴定法测定了不同品质牛奶中的钙含量。结果表明:伊利早餐奶钙含量最高(1.043 8mg/g),银桥酸牛奶钙含量最低(0.958 9 mg/g)。对于同一品牌牛奶,伊利早餐奶中含钙量最高,伊利酸牛奶中含钙量最低;不同品质纯牛奶:伊利纯牛奶中的钙含量最高,古城纯牛奶中的钙含量最低。
The calcium content in different quality of milk was determined by EDTA-complexometric titration.The results showed that the highest calcium content is Yili breakfast milk(1.043 8 mg/g),the lowest is Yinqiao Yoghurt(0.958 9 mg/g).For the same brand of milk,Yili breakfast milk is highest,Yili yoghurt is lowest.And the milk of different quality,the highest is Yili Pure Milk,the lowest is Ancient milk.