铅是一种对人体有害的元素。血中铅浓度测定是提供近期接触铅的最好指标;对于环境污染、毒理等方面的研究也具有很重要的意义;很多国家已应用为人群接触环境铅的生物监测指标。国产的和早期进口的原子吸收分光光度计,将血样稀释后直接进样,由于升温困难或因背景扣除效果较差,往往使分析难以进行。我们在现有资料的基础上,改用低毒的乙酸丁酯代替毒性较高的甲基异丁酮作为萃取溶剂,对试剂的用量进行 Lead is a harmful element of the human body. Determination of lead in blood is to provide the best indicators of recent exposure to lead; for environmental pollution, toxicology and other aspects of research is also of great significance; many countries have been applied as a human exposure to environmental lead biological monitoring indicators. Domestic and imported atomic absorption spectrophotometer, the blood sample diluted directly into the sample, due to difficult heating or background subtraction less effective, often make the analysis difficult to carry out. Based on the existing information, we use low-toxic butyl acetate instead of the more toxic methyl isobutyl ketone as the extraction solvent, the amount of reagents