ABSTRACT
In search of a better primary treatment of acute boric acid poisoning, the adsorption capacity of boric acid onto activated carbon as an antidote was investigated <I>in vitro.</I><BR>Wide differences in the amount of boric acid adsorbed were recognized depending on individual activated carbons. In order to elucidate the dominant factor in boric acid adsorption, correlations between the properties of activated carbon and the amounts of boric acid adsorbed are discussed. A significant correlation was recognized between the surface pH of activated carbon and the amount of boric acid adsorbed in low equilibrium concentration. It is assumed that the surface pH of activated carbon is a chief factor affecting the amount of boric acid adsorbed.
ABSTRACT
Concerning the intoxication by agricultural chemicals, adsorption removal of paraquat by activated carbons for initial treatment of paraquat intoxication in vitro was investigated. The amount of paraquat adsorbed was significantly related to the surface pH of activated carbon. It was not found the significant correlation between amount of paraquat adsorbed and physical properties of ten kinds of activated carbons.<BR>Moreover, the influence of sorbitol addition on the amount of paraquat adsorbed was studid. The amonut of paraquat adsorbed onto activated carbon was unaffected by sorbitol addition.