溴化物如溴化钾、溴化钠等,在医药上用处颇多。然溴化物不如氯化物易得纯品,其中常含有多量的氯化物。因之在测定其含量时较为困难。中国药典(1953年版)溴定量法较繁而不易掌握。市售溴盐纯度不一,有的氯化物较多者,用此法不能得出准确的结果。因操作中如加热煮沸时间太少,溴不易完全驱出;如时间 Bromide such as potassium bromide, sodium bromide, etc., a lot of medical use. However, bromide is not as easy as pure chloride, which often contains large amounts of chloride. Therefore it is more difficult to measure the content. Chinese Pharmacopoeia (1953 version) Bromine quantitative method is more complicated and difficult to grasp. Purified commercially available bromine salt, and some chloride more, with this method can not be drawn accurate results. Due to the operation, such as heating boiling too little time, bromine is not easy to drive out completely; such as time