上海地区7～20岁人群血清微量元素研究

作者检测了上海地区417名7～20岁人群的血清17种微量元素(包括12种必需微量元素)和3种常量元素的含量。其中血清Zn、Cu、Fe、Mn、Cr、Co、Mo、Si、Sn、Ni、V、Ca、P、Mg、Sr、Cd、Pb、Al、Ti共19种元素采用ICAP-9000型等离子体直读光谱仪测定,血清Se由F-78型脉冲极谱仪分析。结果表明,血清Zn、Cu及常量元素等分布比较集中,Cd、Pb、Co、Sr等变异度较大。多数元素与年龄存在相关关系,其中Zn、Fe、Mn、Sr等与年龄呈正相关,Cu、Se、Cr、Pb等则随年龄增长而下降。不同生长发育时期血清多数元素有明显差别,整个人群血清各元素男女间基本一致,但不同时期血清元素有一定性别差异。比较不同地区血清元素的分布,表明市区人群血清Cr、Si、Pb等元素较高,而市郊Cu、Fe、Mn、Sr值较高。

THE RESEARCH ABOUT SERUM TRACE ELEMENTS OF 7-20 YEARS-OLD POPULATION IN SHANGHAI

Seventeen trace elements, including twelve essential trace element, and three normal elements in serum of 417 healthy students aged 7 to 20 in Shanghai were analysed. Except Se which was determined by catalytic pulse polarography, Zn, Cu, Fe, Mn, Cr, Mo, Si, Sn, Ni, V, Co, Cd, Pb, Al, Ti, Sr, Ca, Mg and P in serum were measured by ICP-AES. The result showed that the distribution curve of normal elements and Zn, Cu in serum was more concentrated than the other trace elements. There were significant positive correlation between serum Zn, Fe, Mn, Sr and age, and negative correlation between Cu, Cr, Se, Pb and age, respectively. The elements of males were the same as that of females in total population, but the majority of the elements in serum had sex difference in different age-groups. The serum Cr, Si, Pb contents were higher, and Cu, Fe, Mn, Sr were lower in the urban than in the rural adolescents.