Four of the 10 possible THMs regulated as total THMs are trichloromethane, tribromomethane, bromodichloromethane and bromochloromethane. |
Fifteen litres of trichloromethane were run into the bag and left overnight. |
The methanol extract was evaporated and partitioned with n-hexane, benzene, trichloromethane, ethyl acetate and n-butanol, consecutively. |