Analysis of Pesticide Residues, Mycotoxins and Potency in Cannabis using QuEChERS Extraction, ChloroFiltr® dSPE Cleanup and LC-MS/MS

  The latest addition to UCT’s QuEChERS line puts a new “spin” on dSPE. SpinFiltr™ combines the practice of conventional dSPE with the added benefit of ultrafiltration. UCT’s new format of dSPE salts paired with a 0.2µm filtration device, simultaneously removes unwanted matrix compounds and filters samples without the need for any additional steps. With traditional dSPE, analysts must pay close attention when removing the purified extracts from tubes as to not disrupt the layers formed during centrifugation. SpinFiltr™ not only eliminates this problem, but also allows analysts to recover additional sample without the salts getting in the way!  Simply:  Add Vortex Spin Salts and unwanted matrix stay in the top chamber while purified extract is filtered and collected in the bottom portion of the tube. The chamber is discarded and analysts are left with only purified extract that is ready for analysis.  

High purity, Type B, spherical silica support. 100A pore size. 1.8um, 3um, & 5um partical sizes. Variety of stationary phases.

Chlorophyll in QuEChERS extracts must be removed to reduce potential instrument downtime. This is removed from extracts using graphitized carbon black (GCB) Unfortunately, GCB also removes planar analytes reducing analytical accuracy. ChloroFiltr®, used in place of GCB in dSPE tubes, removes unwanted chlorophyll without removing pesticides or environmental analytes. No change in procedure are required.