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.

General information

  • Status :  Withdrawn
    Publication date : 1988-03
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 91
    Surface active agents
  • 71.100.40
    Surface active agents

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