Studies on Contents of Heavy Metals in Niuhuang Jiedu Tables / 浙江中医药大学学报

ABSTRACT

[Objective]To compare the contents of heavy metals in 6 types of Niuhuang jiedu tables.[Methods]The content of heavy metals in 6 types of Niuhuang jiedu tables before or after passed through metabolically man-made stomach liquid was detected by inductively coupled plasma atomic eminssion spectrometry(ICP-AES).[Results]These contents of heavy metals in 6 drugs were more than the order in chinese standards.But the contents of acid-soluble heavy metals were much less than or partially accorded with total heavy metals in the same batch of sample.[Conclusion]The content of acid-soluble heavy metals may be taken as one of the items of quality control for the Niuhuang jiedu tablets and traditional Chinese medicine patent prescription.