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分光光度法测定岩矿中痕量锗,以往都必需用蒸馏或萃取作为分离富集手段。近年来对光度法测定锗的灵敏度有了较大的提高,用2,3,7-三羟基-9-取代萤光酮胶束增溶法,其摩尔吸光系数可达1.8×10~5左右,在强酸介质中有较好的选择性,但对岩矿中锗的测定不经分离,某些元素对痕量锗的测定仍有严重干扰,本文利用了导数
Spectrophotometric determination of trace amounts of germanium in rock and ore, in the past must use distillation or extraction as a means of separation and enrichment. In recent years, the sensitivity of spectrophotometric determination of germanium has been greatly improved. With 2,3,7-trihydroxy-9-substituted fluorophthalone micellar solubilization, the molar absorptivity can reach about 1.8 × 10-5 , Which has good selectivity in strong acid medium. However, the determination of germanium in rock and ore is not separated and some elements still seriously interfere with the determination of trace germanium. In this paper, the derivative