山口医学

Back to Top

山口医学 Volume 28 Issue 2
published_at 1979-06

A Study on Identification and Determination of Paraquat

パラコートの定性、定量に関する検討
Sugawara Norisuke
Ikeda Hiroshi
Furuno Junji
Descriptions
A Study was undertaken regarding the determination, identification, purification, and separation of paraquat. The results were as follows. 1. Separation and purfication of paraquat : Ionexchange resin culumn chromatography with Dewex 50 W-4 resin was used. After applying 10 ml of 0.002% paraquat : solution, it was washed with a small quantity of water and then the stepwise elution was made with each 60 ml of 1, 2, 3, 4, 5, 6, and 7N hydrochloric acid at a rate of 3ml/min. The elute was fractionated into 5ml portions and the absorbance of fraction was measured at 260 mμ. Paraquat was eluted in fractions 40 (4N hydrochloric acid) to 55 (5N hydrochloric acid)…