CJCU
Indirect Photometric Chromatography of Hydroxy Acids Using UV-AbsorbingAlkylpyridinium or Quaternary Ammonium Salts as DetectionAgents and Modifiers
Da Shilu, Wang Zhonghua, Wang Hongying, Huang Jizhen
Chem. J. Chinese Universities . 1990, (10): 1081 -1086 .