本文提出以砷作载体,铜盐为催化剂,用次亚磷酸钙快速还原砷硒成单体,以苯浮选沉淀,使硒锑及其他杂质得到分离,再以溴酸钾氧化溶解砷硒进入水相,加三价砷还原过量的溴酸钾,在沸水浴上以硒试剂(3,3’—二胺基联苯胺)快速显色。本法回收率和重现性都较好;一小时内可完成测定,适用各品号锑和高铅锑中硒的测定。 In this paper, arsenic as a carrier, copper salt as a catalyst, calcium hypophosphite rapid reduction of arsenic and selenium into monomers, benzene flotation precipitation, so that selenium antimony and other impurities were separated, and then potassium bromate oxidative dissolution of arsenic and selenium into the water phase , Adding trivalent arsenic to reduce excess potassium bromate, rapidly developing color with selenium reagent (3,3’-diaminobenzidine) on a boiling water bath. The recovery rate and reproducibility of this law are better; one hour to complete the determination of the applicable antimony and high-lead antimony content in the determination of selenium.