Determination of major and trace elements in six herbal drugs for relieving heat and toxic by ICP-AES with microwave digestion

Objective: to establish a method to simultaneously determine major and trace element contents of na, k, cu, fe, zn, mn, ca, mg, cr, ni, pb, se, as and cd in six herbal drugs. methods: microwave digestion procedure was applied under optimized conditions for digesting medicinal herbs. concentrations of elements were determined by icp-aes. results: the results indicated that the herbal drugs were abundant in major and trace contents which are healthy for human body. after optimizing the microwave digestion technology, the recovery of the element was 96.79–103.47% and the rsd < 5.0%. conclusion: icp-aes combining the microwave digestion technology, there were a lot of merits of time-saving, saving efforts, reducing environmental pollution, fast and accurate determination result in determining major and trace elements.