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对唐山市区 51 6名小学生发中锌、铜、钙、镁、铅含量进行了测定。锌、铜、钙、镁用原子吸收分光光度法测定 ,发铅用溶出法测定。数据进行医学统计分析。调查显示 ,唐山市区小学生发中锌、钙、镁含量偏低者较多 ,其中缺锌者占 34.7% ,缺钙者占 2 7.1 % ,缺镁者占 2 3.8% ;发铅含量偏高者较多 ,占 30 .2 %。发铅含量男生明显高于女生 ,发锌、钙、镁含量男生明显低于女生
The contents of zinc, copper, calcium, magnesium and lead in 51 6 primary school students in Tangshan city were measured. Zinc, copper, calcium and magnesium were determined by atomic absorption spectrophotometry and lead was determined by the dissolution method. Data for medical statistical analysis. Survey shows that primary school students in Tangshan hair zinc, calcium, magnesium content is low, of which zinc deficiency accounted for 34.7%, calcium deficiency accounted for 21.7%, magnesium accounted for 23.8%; hair lead content is high More, accounting for 30.2%. Hair content of boys was significantly higher than girls, hair zinc, calcium, magnesium content of boys was significantly lower than girls