微波消解-火焰原子吸收光谱法测定下火药材中的微量元素

Determination of Five Mineral Elements in Three Descend Fire Medicine Material by FAAS with Microwave Digestion

微波消解样品,火焰原子吸收光谱法测定下火药材中5种微量元素的含量。菊花中钙、镁、铁、锌、锰的含量分别为15.80,31.42,7.68,0.935,0.105g/kg;桑叶中钙、镁、铁、锌、锰的含量分别为195.6,33.69,7.02,0.839,2.21g/kg;夏枯草中钙、镁、铁、锌、锰的含量分别为110.9,38.69,14.75,1.24,0.112g/kg。该方法加标回收率在90.1%—106.3%之间,方法简单、灵敏、准确,可为下火药材的基础研究提供依据。

Five microelements in descend fire medicine material were digested by microwave and determined by flame atomic absorption spectrometry. The contents of calcium, magnesium, iron, zinc and manganese in the chrysanthemum are 15.80,31.42,7.68,0. 935,0. 105 g/kg,respectively. The contents of calcium,magnesium,iron,zinc and manganese in the mulberry leaf are 195. 6, 33. 69, 7.02,0. 839,2.21g/kg,respectively. The contents of calcium,magnesium,iron, zinc and manganese in the prunella vulgaris carries are 110. 9,38. 69,14.75,1.24,0. 112g/kg, respectively. The method is simple, rapid, sensitive and accurate, which can offer a basis for the development of descend fire medicine material.