文献较系统的报导了二溴苯基荧光酮(DBPF)在Ge(Ⅳ)—DBPF—HCl—CTMAB体系中的显色性质及其应用,特点是其反应可在高酸度盐酸溶液中实现。灵敏度也较高,但铁(Ⅲ)等元素的允许置却不高,因而使其应用受到限制。本文采用中性表面活性剂OP代替阳离子表面活性剂CTMAB或CPB,其反应灵敏度虽有所降低,但对某些常见元素的允许量却有显著提高。若反应在硫酸溶液中进行,其灵敏度比在盐酸溶液中更 The literature reports systematically the chromogenic properties of dibromophenylfluorone (DBPF) in Ge (IV) -DBPF-HCI-CTMAB system and its application, which is characterized by its reaction in high-acidity HCl solution. Sensitivity is also high, but iron (Ⅲ) and other elements allow the set is not high, so its application is limited. In this paper, the use of neutral surfactant OP instead of the cationic surfactants CTMAB or CPB, although the reaction sensitivity decreased, but the allowable amount of some common elements have increased significantly. If the reaction is carried out in sulfuric acid solution, its sensitivity is more than in hydrochloric acid solution