Abstract: In this paper, the concentration of Ca 、 Mg 、 Fe 、 Mn 、 Cu 、 Zn and Cr in the hair of young people from Zang, She and Chaoxian Nationalities were determined by inductively coupled plas- ma atomic emission spectrometry (ICP-AES). A data matrix of concentration of elements existing in the hair from three nationalities is evaluated comprehensively by using cluster analysis.The results show that there are considerable differences among these nationalities.

Key words: Trace element; ICP-AES; Hair; Cluster Analysis; Zang Nation; She Nation; Chaoxian Nation