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Articles

Extraction of Cannabinoids from Blood

This application note outlines an extraction method for four natural cannabinoids and the two major metabolites of Δ9-THC in blood using Clean Screen® THC SPE column.

Analysis of Natural Cannabinoids and Metabolites from Urine

This application note features a unique, simple, and robust solid-phase extraction method for cannabinoids in urine followed by analysis by LC–MS/MS.

ChloroFiltr®: A Novel Sorbent for Chlorophyll Removal Using QuEChERS

Spinach and other highly pigmented vegetables contain chlorophylls, carotenoids, xanthophylls, and anthocyanins. Chlorophylls have the greatest adverse effect on gas chromatography systems due to their non-volatile characteristics. This QuEChERS procedure uses ChloroFiltr to significantly reduce chlorophylls without sacrificing the recoveries of planar pesticides.

Summary of FDA Method C-010.01: Determination of PFAS in Food

This note summarises a procedure developed by the US Food and Drug Administration to measure 16 PFAS in food using a QuEChERS sample preparation approach and LC–MS/MS analysis.  

Application Note: EPA Method 533: Per- and Polyfluoroalkyl Substances in Drinking Water 

This application note outlines the analysis of PFAS in drinking water according to EPA 533 using UCT’s Enviro-Clean® polymeric weak-anion exchange (WAX)SPE cartridges.