本文扣导了在一个工厂的同一车间內三个在工作中接触浓氢氟酸的男王班后尿氟增高,尿氟浓度平均值是12.02毫克/升。操作程序是,将铂金属件放在80％浓度的氢氟酸內浸泡24小时后再用碱浸泡(均在烟橱內进行,并有完整的预防措施),然后经水彻底冲洗后置于焊柜內干燥。环境空气测定, This article drew the results of an increase in urinary fluoride among three men who were exposed to concentrated hydrofluoric acid at work during the same workshop in a factory. The mean urinary fluoride concentration was 12.02 mg / l. The procedure is to soak the platinum metal parts in 80% strength hydrofluoric acid for 24 hours and then soak them in a base (all in a smoking cabinet with complete precautionary measures) and rinse thoroughly with water before setting Solvent inside the dry. Ambient air determination,