测定人尿中铅含量可以诊断铅中毒情况。人尿中铅的测定可用原子吸收分光光度法(1)或脉冲极谱汞膜电极溶出法(2),但这些方法所用仪器难于普及。目前我国多采用双硫腙氯仿萃取比色法,这种方法的缺点是:用剧毒药品氢化钾作掩蔽剂,萃取剂氯仿严重污染环境,且灵敏度较差,同时样品和试剂用量多,测定过程中劳动 Determination of human urine lead content can be diagnosed lead poisoning. Determination of human urine lead by atomic absorption spectrophotometry (1) or pulsed polarographic mercury electrode dissolution (2), but these methods are difficult to popularize the instrument. At present, our country use more dithizone chloroform extraction colorimetric method, the disadvantage of this method is: with highly toxic drugs potassium hydride as a masking agent, chloroform extractant serious environmental pollution, and the sensitivity is poor, while the amount of samples and reagents, determination The process of labor