Ion pairing reagents make charged analytes retainable on a reversed-phase column.
Tetrabutylammonium salts do the same job in reverse for acidic analytes.
Purity is critical since these reagents equilibrate slowly with the column.
Molychem manufactures ion pairing reagents including C4–C12 alkanesulphonate sodium
salts, anhydrous and monohydrate, plus tetrabutylammonium salts.
