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采用灰化酸溶法处理样品,火焰原子吸收光谱法测定婴幼儿奶粉中钾、钙、钠、锌、铁和镁6种金属元素的含量。对仪器的工作条件作了详细的叙述。吸光度与6种金属元素的质量浓度之间均呈线性关系。应用此法测得3种婴幼儿奶粉中上述6元素的含量分别为779.41,563.69,779.37mg/100g(钾),627.56,430.33,488.6mg/100g(钙),254.6,163.5,223.3mg/100g(钠),5.90,4.98,6.04mg/100g(锌),8.86,7.11,8.00mg/100g(铁),5