Preparative liquid chromatography YFLC series: as a pioneer of medium pressure preparative liquid chromatography, Yamazen has been developing YFLC Instrument and column for more than 25years. Based on long years of experience and technical know-how, New YFLCˇˇseries has been developed to computer controlled perfect system and has high reputation for its excellent performance among organic synthetic chemists and natural product chemists. English version computer application software of new YFLC series is available.