分光光度法测定用于废氧化铝载体铂催化剂中铂含量。铂被还原成铂黑从杂质中分离出，用王水溶解形成六氯铂酸盐酸溶液，加入氯化亚锡形成橙黄色络合物溶液在４０３ｎｍ进行测定。对该方法的回收率，钼存在对测定的影响进行了研究，方法回收率９８～１０２％，在１０－６数量级，即使钼浓度与铂浓度相等并不影响铂的测定 Spectrophotometric Determination of Platinum Content in Platinum Catalysts for Waste Alumina Supports. Platinum was reduced to platinum black isolated from the impurities, dissolved in aqua regia to form hexachloroplatinic acid solution, stannous chloride was added to form an orange-yellow complex solution at 403 nm. The recoveries of this method and the presence of molybdenum were investigated. The recovery was 98- 102%. On the order of 10-6, even the molybdenum concentration equal to the platinum concentration did not affect the determination of platinum