Captan Separation on Obelisc and Primesep Mixed-Mode HPLC Columns
Captan is a phthalimide fungicide which is typically used as a component in industrial pesticide mixtures. The EURL included a QuEChERS (Quick, Easy, Cheap, Rugged, and Safe) method for captan as a target pesticide for EUPT-SRM. Obelisc R was used to retain captan and separate it from impurities. Primesep B2 contains embedded basic ion-pairing groups while Obelisc R contains embedded ionic and hydrophobic groups which can assist in fine tuning separations. Method is LC/MS compatible and can be used as a general approach for analyzing captan and dozens of other pesticides.