title: [Determination of fourteen trace elements in chinese traditional medicines by atomic absorption spectrometry].
abstract: Seven kinds of Chinese traditional medicines, including laoniankechuan tablet, fufangbanxia tablet, weitongning tablet, quanshen tablet, shengshijiangtang capsule, xiasangju particle, and American yangshen tablet, were digested with HNO3-HClO4 mixed acid. The fourteen trace elements, including calcium, magnesium, iron, zinc, potassium, sodium, manganese, copper, chromium, cobalt, strontium, nickel, cadmium and lead in the drugs were determined by atomic absorption spectrometry. The effects of the type of mixed acid, the ratio of HNO3 to HClO4 in mixed acid, the volume of digesting solution, and the digesting time were also investigated in detail. The results obtained show that the concentrations of Ca, Mg, Fe, K and Na in seven kinds of Chinese traditional medicines are higher than those of other elements. Moreover, shengshijiangtang capsule for the treatment of diabetes contains plenty of Mn, and weitongning tablet for the treatment of stomach disease contains plenty of Sr, Mn and Cu.
authors.affiliation: College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China.
authors.forename: Yan-ming
authors.initials: YM
authors.lastname: Liu
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Jin-tu
authors.initials: JT
authors.lastname: Han
authors.forename: Hong-chao
authors.initials: HC
authors.lastname: Chang
authors.forename: Qin-long
authors.initials: QL
authors.lastname: Peng
mesh_terms: D002118:Calcium / Q000032:analysis / Q000737:chemistry; D002214:Capsules; D007501:Iron / Q000032:analysis / Q000737:chemistry; D008274:Magnesium / Q000032:analysis / Q000737:chemistry; D008516:Medicine, Chinese Traditional; D017942:Nitric Acid / Q000737:chemistry; D010472:Perchlorates / Q000737:chemistry; D011188:Potassium / Q000032:analysis / Q000737:chemistry; D015203:Reproducibility of Results; D012964:Sodium / Q000032:analysis / Q000737:chemistry; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods*; D013607:Tablets; D014131:Trace Elements / Q000032:analysis* / Q000737:chemistry
chemical_list: D002214:Capsules; D010472:Perchlorates; D013607:Tablets; D014131:Trace Elements; D017942:Nitric Acid; D012964:Sodium; D007501:Iron; D008274:Magnesium; D011188:Potassium; D002118:Calcium