Abstract: After dissolved by HCl-HNO_3,samples were added into the nine elements' standard solutions increased by concentration degrees respectively,then the contents of nickel,copper,manganese,iron,lead,antimony,zinc,calcium and magnesium were determined by air-acetylene fire atomic absorption spectrometry (FAAS).The optimum determination conditions have been established.The interference tests for other elements that probably exist have been investigated.The recovery was in the range of 97.5%~103.0%.The relative sta...