Mori I, Fujita Y, Ikuta K, Nakahashi Y, Kakimi E, Kato K
Osaka University of Pharmaceutical Sciences, Matsubara, Osaka 580, Japan.
Talanta. 1989 Jun;36(6):688-90. doi: 10.1016/0039-9140(89)80267-x.
Complex formation between uranium or tungsten and o-hydroxyhydroquinonephthalein (Qnph) in various micellar surfactant media has been investigated fluorometrically, and determination of uranium and tungsten based on the difference between the relative fluorescence intensities of Qnph and the metal complex at 535 nm, with excitation at 400 nm in the presence of poly(vinyl) alcohol as a non-ionic surfactant. The calibration curves were linear up to 1.0 mu/ml uranium and 0.9, mu/ml tungsten. The relative standard deviations (5 replicates) were 2.6% for tungsten and 3.0% for uranium, and recovery tests gave relatively good results (97-104%).
采用荧光分析法研究了在各种胶束表面活性剂介质中铀或钨与邻羟基氢醌酚酞（Qnph）的络合物形成情况，并基于在聚乙烯醇作为非离子表面活性剂存在下，于400nm激发波长下，Qnph与金属络合物在535nm处相对荧光强度的差异来测定铀和钨。校准曲线在铀浓度高达1.0μg/ml和钨浓度高达0.9μg/ml时呈线性。钨的相对标准偏差（5次重复）为2.6%，铀为3.0%，回收率测试结果较好（97 - 104%）。
