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Analysis of cannabinoids by liquid chromatography–mass spectrometry in milk, liver and hemp seed to ensure food safety

AuthorsEscrivá, Úrsula; Andrés-Costa, María Jesús; Andreu Pérez, V. ; Picó, Yolanda
Solid-phase extraction
Food safety
Hemp seed
Food of animal origin
Issue Date1-Aug-2017
CitationFood Chemistry 228: 177-185 (2017)
AbstractA method for determining cannabinoids, Δ9-tetrahidrocannabinol (THC), 11-nor-9-carboxy-Δ9-THC (THC-COOH) and 11-hidroxy-Δ9-THC (THC-OH) in milk, liver and hemp seeds based on liquid chromatography tandem mass spectrometry has been optimized and validated. Analytes were extracted with methanol and the extracts cleaned-up by solid-phase extraction using Oasis HLB (60 mg). The developed method was validated according to the Commission Decision 2002/657/EC. The decision limit (CCα) and detection capability (CCβ) ranged from 3.10–10.5 ng g−1 and 3.52–11.5 ng g−1, the recoveries were 76–118% and matrix effect ranged from −17.8% to 19.9% in the three matrices studied. The method was applied to food samples obtaining positive results for THC in hemp seeds (average 0.82 μg g−1) and three brands of junior formula milk at concentrations from 4.76 to 56.11 ng g−1. The developed method was suitable achieving identification and quantification of cannabinoids in food matrices.
Publisher version (URL)http://dx.doi.org/10.1016/j.foodchem.2017.01.128
Appears in Collections:(CIDE) Artículos
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