微波消解-等离子体原子发射光谱法测定石榴皮和石榴籽中微量元素

Determination of Trace Elements in Pomegranate Peel and Pomegranate Seed by Inductively Coupled Plasma-Atomic Emission Spectrometry with Microwave Digestion

采用微波消解样品,电感耦合等离子体原子发射光谱法(ICP-AES)测定了石榴皮和石榴籽中K、Ca、Mg、Fe、Al、Cu、Zn、Mn、Na、Li、P、S 12种微量元素的含量。在最佳仪器工作条件下,各元素的加标回收率为91.8%～103.1%,相对标准偏差(RSD)为0.70%～2.68%。实验结果可为石榴皮和石榴籽中微量元素与其药效的相关性提供科学依据。

The trace elements of K,Ca,Mg,Fe,Al,Cu,Zn,Mn,Na,Li,P and S in the pomegranate peel and pomegranate seed were determined by inductively coupled plasma atomic emission spectrometry（ICP-AES） with microwave digestion.Under the optimal working conditions of the equipment,the element recoveries of standard addition are 91.8%~103.1%,and the relative standard deviations（RSDs） are 0.70%~2.68%.