1. A. S. Y. Chau, B. D. Ripley, F. Kawahara, in “Analysis of Pesticides in Water”,A. S. Y. Chau andB. K. Afghan ed., CRC Press, Boca Raton, Fl, 1982, chap. 2.
2. L. Zenon-Roland, R. Agneessens, P. Nanginot, H. Jacobs, J. High Resolut. Chromatogr. Chormatogr. Commun.7, 480 (1984).
3. S. M. Prinsloo, P. R. De Beer, J. Assoc. Off. Anal. Chem.,68, 1100 (1985).
4. K. Levsen, Org. Mass Spectrom.,23, 406 (1988).
5. R. Bagnati, E. Benfenati, E. Davoli, R. Fanelli, Chamosphere,17, 59 (1988).