Automated titration without the disadvantages of standard two-phase procedures when analysing anionic, cationic, or nonionic surfactants
Whether it be anionic, cationic or nonionic surfactants, the new Metrohm 809 Titrando easily performs many analyses.
If we take anionic surfactants for example, the standard procedure is the two phase titration with the mixed indicator system disulfin blue and dimidium bromide.
However, this procedure has many disadvantages: It can hardly be automated and must be carried out manually.
It uses chloroform or other chlorinated hydrocarbons. The visual endpoint detection can be difficult.
With the new 809 Titrando, the above titration can easily be automated without the need for chloroform.
Here are just some of the surfactant titrations that can easily be performed.
Anionic surfactants and soaps in washing powder.
Anionic surfactants in dishwashing concentrates.
Cationic surfactants in hair conditioner.
Cationic surfactants in cooling lubricants.
Nonionic surfactants in mouth rinse.
Nonionic surfactants in household cleaners.
Total phosphate in washing powders.
Sulphate in washing powders. Betains by titration.
Polyacrylates by titration.
Metrohm has also released the Surfpac, a library of methods and techniques for the automated analysis of surfactants.
This is a comprehensive collection of present programmes and methods for the seamless analysis of surfactants.
