一般认为低出生体重婴儿死亡率高与金属的含量有关。妊娠妇女需要金属量增多。作者对两组年龄、地区及社会经济状态相似的妇女做了分析研究,用原子吸收光谱法测定了分娩时母体及脐血内钙、镁、铜、铅和铁的含量。25个妇女所生婴儿在1,500～2,500克之间,50个妇女所生婴儿〉2.500克。试验结果证明;钙和铁的含量在母血和脐血有一定差异,低生出体重一组均低。除了母体血铁的含量以外,在低出生体重组的母血及脐血中,全部 Generally believed that low birth weight infant mortality and metal content. Pregnant women need more metal. The authors analyzed two groups of women of similar age, region and socio-economic status and determined the contents of calcium, magnesium, copper, lead and iron in maternal and umbilical cord blood by atomic absorption spectrometry. 25 women born between 1,500 to 2,500 grams of infants, 50 women born babies> 2.500 grams. Test results show that; calcium and iron content in maternal and umbilical blood have some differences, low birth weight of a group were low. In addition to maternal iron content, in low birth weight maternal and umbilical blood, all