QuEChERS methods are fast, easy, and cost-effective, and Restek Q-sep™ products make QuEChERS procedures even simpler. All extraction salts, sorbents and sample tubes are included—no specialized equipment or glassware is required. Prepare samples more efficiently with a complete line of QuEChERS supplies from Restek.

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