1. 1) R. J. Block, E. L. Durrum, and G. Zweig, A Laboratory Manual of Paper Chromatography and Paper Electrophoresis, Academic Press, New York (1955).
2. 2) L. P. Ribeiro, E. Matidieri, and O. R. Affonso, Paper Electrophoresis, Elsevier, London (1961).
3. 3) S. Fanali and L. Ossicini, J. Chromatogr., 287, 148 (1984).
4. 4) H. Terada, Denki Eidouhou, Kiso To Zikken, Hirokawa, Tokyo (1989), (in Japanese).
5. 5) S. Honda and S. Terabe, Kyapirari Denkieidou, Koudansya, Tokyo (1995), (in Japanese).