QuEChERS methodology uses bulk salts and SPE sorbents, with simple mixing and centrifugation steps, for extraction and cleanup of homogenized food/agricultural samples. Unfortunately, difficult matrices often contain lipid and pigment interferences that cannot be removed by traditional QuEChERS phases.
Supelco now offers the Supel QuE Z-Sep QuEChERS sorbents. The patented zirconia-coated silica particles of the Z-Sep sorbents selectively remove more lipid and pigment interferences from sample extracts than traditional cleanup sorbents for QuEChERS methods; providing more robust LC-MS and GC-MS methods.