Author(s): Julie Kowalski, Michelle Misselwitz, Jason Thomas, Jack Cochran
Published By: Food Safety Magazine
Issue: February/March 2012
Year of Publication: 2012
Abstract: New requirements for dietary supplements to be manufactured under current Good Manufacturing Practices (cGMP) regulations have created a need for methods to detect pesticides in these complex, largely botanical products. QuEChERS offers a simple, cost-effective approach that can reduce matrix interferences as well as variation among technicians. Here we demonstrate a procedure that incorporates a QuEChERS extraction, cartridge solid-phase extraction (cSPE) cleanup and gas chromatography-time-of-flight mass spectrometry (GC-TOFMS), resulting in good recoveries for a wide range of pesticide chemistries in dandelion root powder.