Q-sep QuEChERS 15 ml dSPE Tubes 900 mg MgSO4, 300 mg PSA, 300 mg C18, 45 mg GCB, 50 pcs

Multiple sorbents are used to extract different types of interferences.

• MgSO4 removes excess water
• PSA removes sugars, fatty acids, organic acids, and anthocyanine pigments
• C18 removes nonpolar interferences
• GCB removes pigments, sterols, and nonpolar interferences

PSA = primary and secondary amine exchange material GCB = graphitized carbon black