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用法国产Jy70(Ⅱ)型等离子体发射光谱仪,对包头市720例居民发中10种微量元素的含量进行了测定,它们在性别、年龄间的差异经中位数U检验表明:Cr、Ni、Mo、Sr、Mn、Al、 Fe在性别间均存在高度显著性差异(P<0.01);除Cr外均为女性高于男性,10种元素在各年龄组间也大多存在显著性差异。
The contents of 10 trace elements in 720 residents of Baotou City were determined by the Jy70 (Ⅱ) type plasma emission spectrometer. Their differences in gender and age were tested by median U test. The results showed that the contents of Cr, Ni, There were highly significant differences in Mo, Sr, Mn, Al, and Fe between the sexes (P <0.01), except for Cr, women were higher than men, and most of the 10 elements were significantly different among all age groups.