OCR-L-EDIBLESREGS-0530 0530_OCR_L-EDIBLESREGS.09.jpgDr. Raquel Keledjian, lab director of pH Solutions, LLC, injects gas into a gas chromatograph mass spectrometer to identify compounds in cannabis samples. (Photo by Cindy Yamanaka, Orange County Register/SCNG) May 25, 2017