The organic acids glucuronic acid, methanesulfonic acid, and butanesulfonic acid were separated using Primesep B2 mixed-mode column. Primesep B2 is a reverse-phase column with embedded basic ion-pairing groups.

The organic acids glucuronic acid, methanesulfonic acid, and butanesulfonic acid were separated using Primesep B2 mixed-mode column. Primesep B2 is a reverse-phase column with embedded basic ion-pairing groups.