From a methanolic solution of the test portion, the unsulfated matter is separated on an ion-exchange column (filled with a mixture of cation-exchange resins and anion-exchange resins). The unsulfated matter is recovered from the eluate by evaporation and weighing of the residue.
Текущий статус : WithdrawnДата публикации : 1988-03
Версия : 1
Технический комитет:Surface active agents