Waters Oasis WAX固相萃取小柱（60µm，30

The new Oasis WAX weak anion-exchange SPE chemistry is designed for scientists searching for a fast, simple and highly selective method for sample preparation and cleanup. Oasis WAX is a polymeric reversed-phase, weak ion exchange mixed-mode sorbent that allows for the retention and release of strong acidic compounds (e.g. phosphonates). The elution solvent is MS friendly and the sorbent is completely water wettable.