中文摘要：

建立了微波消解-连续光源原子吸收光谱法测定鸡精中Ca、Fe、Mg、Zn的方法。实验选择微波消解作为样品的前处理方式，分析研究了乙炔流量和燃烧器高度对测定结果的影响，通过实验分别确定了测定Ca、Fe、Mg、Zn的最佳参数。在此条件下，利用高分辨连续光源原子吸收光谱仪测定鸡精中Ca、Fe、Mg、Zn的含量分别为：206.2、3.6、144.7、4.0μg/g，加标回收率为98.4%～106.7%，本法的精密度（RSD）为1.0%～2.2%。该方法快速、准确、稳定、污染少，具有较高的实用价值，为食品中多元素检测提供了科学依据。

英文摘要：

An effective method was developed for determination of metallic elements in chicken essence by microwave digestion- continuum source atomic absorption spectrophotometry. The samples were digested by microwave. The results were effected by determination parameters of acetylene flow and burner height. The optimum determination parameters were chose by experiments. Under optimum work conditions , the contents of Ca, Fe, Mg, Zn in chicken essence were 206.2, 3.6, 144.7, 4.0μg/g by high resolution continuum source flame atomic absorption spectrophotometry, respectively. The recoveries for the samples were from 98.4%to 106.7%. The precision relative standard deviations were from 1.0%to 2.2%for determining Ca, Fe, Mg, Zn. Therefore, this method was rapid, accurate, stable and less pollution, and has a high practical value. It provided scientific basis for determination of many metallic elements in food.