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锰是人体代谢必需微量元素。正常人每日需摄入２～３ｍｇ。但过量的锰则对机体各系统产生危害。故测定生物样品中锰含量至关重要。我们对２１７名焊接工人尿锰进行了分析，结果如下。１对象在开滦煤矿选择焊接工龄１年以上、身体健康、无肝肾疾患的纯焊接工人２１７名为研...
Manganese is an essential trace element for human metabolism. Normal daily intake of 2 ~ 3mg. However, excess manganese is harmful to the system of the body. Therefore, the determination of manganese content in biological samples is crucial. We conducted a survey of urinary manganese in 217 welding workers. The results are as follows. 1 object Kailuan Coal Mine in the choice of welding more than 1 year of service life, good health, no pure liver and kidney disease welders 217 for research ...