Aggregation numbers of surfactant micelles vary depending on concentrations of salt in the solvent and the type of salt.
We used dodecyl sulfate (SDS) as a surfactant for evaluating the state of micelle aggregation depending on salt concentration based on particle diameter measurements. We used 10 mM phosphoric acid buffer solution (pH 7) as the solvent; as the salt, we used sodium chloride (NaCl).
