利用微波萃取法进行提取,以稀盐酸为提取剂,浓硝酸-高氯酸为消解体系,采用原子吸收光谱法测定翻白草中铁和铜的含量。翻白草铜、铁元素的提取时间均为150s,阳极电流为120mA,料液比为1∶20(g/mL),铜、铁提取剂酸度分别为1.5和1.0。翻白草根中铜的溶出量最大,而叶中铁的溶出量最大。 Microwave extraction was used for the extraction. With diluted hydrochloric acid as extractant and concentrated nitric acid - perchloric acid as digestion system, atomic absorption spectrometry was used to determine the contents of iron and copper. The extraction time of copper and iron was 150s, the anodic current was 120mA, the ratio of solid to liquid was 1:20 (g / mL), the acidity of copper and iron extractants were 1.5 and 1.0, respectively. Leaching grass roots in the dissolution of the largest copper, while the leaf iron dissolution of the largest.