1. K. Fujita, Y. Arikawa andS. Ganno, Nippon Kagaku Kaishi. 403 (1975).
2. N. Takai andT. Yamabe, Seisankenkyu26, 278, 343 (1974).
3. Shodex Technical Data 77.8.
4. T. Hanai andK. Tanaka, in Jikken Kosoku Ekitai Kuromatogurahi (Experimental High Speed Liquid Chromatography)H. Hatano andT. Hanai, eds., Kagakudojin, Kyoto, 1977, p. 173.
5. Toyo soda HLC-Report 8.