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African Journal of Pharmacy and Pharmacology
The contents of 22 essential mineral elements and trace, heavy and toxic metals in 14 herbal drugs collected from the local markets of the western province of Saudi Arabia have been determined. All investigated elements were detected using inductively coupled plasma-atomic emission spectrometer (ICP-AES) after pretreatment of the tested samples with microwave digestion system. The levels of the most dangerous heavy metals Cd and Pb in the samples were below the maximum permitted levels reporteddoi:10.5897/ajpp12.1455 fatcat:vgvl7vkm4ndzzixyzuopznjl5m