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由于全脂奶粉中含脂肪量较多,对测定微量元素带来一定困难。干法灰化法固然可以较彻底地分解有机物,但由于温度过高而导致某些微量元素的挥发损失。本文重点摸索湿法消化方法,以寻求较好的消化体系,介决奶粉中微量元素测定。奶粉中测定微量元素工作近几年发表文章并不多。1982年 Mile 和 Preston发表了《婴儿代奶粉中铅的工业分析》;Hasse 等人用 HNO_3～HClO_4-H_2SO_4消化体系在加压设备160℃时消化奶粉;Khalid 等
As whole milk contains more fat in the determination of trace elements to bring some difficulties. Although the dry ashing method can decompose organic matter more thoroughly, the loss of volatility of some trace elements is caused by the temperature being too high. This article focuses on wet digestion method to seek better digestive system, determine the determination of trace elements in milk powder. Determination of trace elements in milk work published articles in recent years is not much. In 1982, Mile and Preston published “Industrial Analysis of Lead in Milk Powder for Infants”; Hasse et al. Digested powdered milk with a HNO_3 ~ HClO_4-H_2SO_4 digestion system at 160 ° C; Khalid et al