CJCU
Separation and Determination of Rare Earth Chelates by High PerformanceLiquid Chromatography Using 4-(2-Pyridylazo) Resorcinolas Chromophoric Reagent
Gao Jin-zhang, Wang Ji-min, Hu Ping, Bai Guang-bi
Chem. J. Chinese Universities . 1991, (2): 169 -172 .