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本文研究了银─邻菲琳─二溴苯基荧光酮的显色反应，提出了测定微量银的分光光度法。雕ｐＨ为６．５，分子组成比为Ａｇ￣＋：ｐｈｅｎ：ＤＢＰＦ＝１：２：１，表观摩尔吸光系数ε＿５６０＝３．２４×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），银含量在０～５０μｇ／２５ｍＬ范围内符合比尔定律，此法用于阳极泥中银的测定，结果满意。
In this paper, the color reaction of silver-o-phenanthrene-dibromophenylfluorone was studied. The spectrophotometric method for the determination of trace silver was proposed. The molecular weight ratio of Ag ~ +: phen: DBPF = 1: 2: 1 and the apparent molar absorptivity ε_560 = 3.24 × 10 ~ 4L · mol ~ (-1) · cm ~ -1). The Beer’s law was obeyed in the range of 0 ~ 50μg / 25mL. The method was applied to the determination of silver in anode slime with satisfactory results.