本文对键康人群及接铅工人进行了晨尿、上班后2小时尿及24小时尿中合铅量的测定,以明确何时采集尿液才具有代表性。采用双硫腙热消化法,每份样品作两个平行管,两管间误差小于20％为有效。结果见表1。分析结果,无论是晨尿,上班后2小时尿以及24小时尿,接铅工人的尿铅均值都超过健康人群,差别有非常显著到显著性意义。 In this paper, the key health workers and lead workers were morning urine, 2 hours after work and 24 hours of urinary lead in the determination of lead in order to determine when the collection of urine was representative. Dithizone thermal digestion method, each sample for two parallel tubes, the error between less than 20% is effective. The results are shown in Table 1. Analysis results, whether it is morning urine, 2 hours after work, urine and 24-hour urine, lead workers were more than the average urinary lead in healthy people, the difference was very significant to significant significance.