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以某厂电焊工及电解锰车间操作工75人(男43人,女32人,年龄20—53岁,平均工龄9.4年)为接触组;常年生活在厂区的工人、干部、农民、学生等非接锰者35人(男25人、女10人,年龄16—55岁)为对照组,用甲醛肟比色法和集锰法对其发锰和尿锰进行测定。结果触接组发
75 workers (43 males and 32 females, aged 20-53 years and average working age 9.4 years) were employed as contact persons in the welder and electrolytic manganese workshop of a factory. Workers, cadres, peasants and students all year-round living in the factory area Non-connected manganese 35 (male 25, female 10, aged 16-55 years) as the control group, with formaldehyde oxime colorimetric and manganese method for the determination of its hair manganese and urine manganese. The results of the contact group hair