铅侵入人体累积性强,影响人体骨髓造血系统和神经系统。因此大气中的铅含量需要监测。目前测定痕量铅多采用二硫腙比色法,该法烦锁,灵敏度不高,干扰也较多,操作中要使用氰化钾、氯仿毒品;原子吸收光度法虽有操作简便的优点,但灵敏度也不高且仪器昂贵不易普及。本文在资料的基础上引入非离子表面活性剂 Lead invades the human body accumulates strongly, affecting the human bone marrow hematopoietic system and the nervous system. Therefore, the atmospheric lead content needs to be monitored. The current determination of trace lead dithizone colorimetric method, the method annoying lock, the sensitivity is not high, interference is more, the operation to use potassium cyanide, chloroform drugs; atomic absorption spectrophotometry although the advantages of easy operation, But the sensitivity is not high and the instrument is not easy to popularize. In this paper, based on the introduction of non-ionic surfactant