IRA-400 anion exchange resin in water passed through a column with resin;
参考文献
Trapentsier, P. T.; Kalvin'sh, I. Ya.; Liepin'sh, E. E.; Lukevits, E.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 9 p. 982 - 989
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 9 p. 1227 - 1235