Abstract: Inductively coupled plasma mass spectrometry was employed to simultaneous detertmine 9 trace necessarytransitional elements(V、Cr、Mn、Fe、Co、Ni、Cu、Zn and Mo)for human in foods. Calibration with rhodium asthe internal standard was used .The samples were digested using a microwave oven. The results of the analysis of reference materialwere compared with certfied values.For all analyte elements,the correlation coefficient of the calibration curves was 0.9990,therecoveries in the 90.2%～106% range,the relative standard in the 0.4%～4.4% range.

Key words: food, transitional elements, ICP-MS