Walter Brent Wilson serves as an executive board member and a Research Scientist at NIST where he coordinates the CSD Cannabis research program with a focus on developing Cannabis reference materials and a Quality Assurance Program (CannaQAP). As part of his work, he develops methods based on GC and reversed-phase liquid chromatography coupled to mass spectrometry or tandem mass spectrometry methods to separate many natural and synthetic cannabinoids in complex Cannabis matrices: dried plant, extracts, concentrates, edibles.