TY - JA AU - Meineri,G. AU - Candellone,A. AU - Bello,F.D. AU - Gastaldi,D. AU - Medana,C. AU - Peiretti,P.G. TI - Gluten contamination of canned and dry grain-free commercial pet foods determined by HPLC-HRMS SN - 1828-051X PY - 2020/// CY - United Kingdom PB - Taylor and Francis KW - AGROVOC KW - Gluten KW - HPLC KW - Pet foods KW - Cats KW - Dogs N1 - Peer review; Open Access N2 - The aim was to determine the absence of gluten in pet food samples marked as ‘grain-free’ and ‘gluten-free’ diets, to assess the reliability of manufacturer labelling of such products. A total of 15 diets labelled as grain- or gluten-free and 2 commercial diets containing wheat were sampled. An analytical procedure using high-pressure liquid chromatography coupled with mass spectrometry with high power of resolution was developed and applied to determine specific markers of wheat gluten. The results are expressed as mg of wheat flour type ‘00’ present in 1 g of feed. The quantification limit (LOQ) obtained in the flour for ion m/z 894.5043, z = 2, is 4 mg of flour per gram. In 14 out of the 15 samples from a grain- or gluten-free diet the quantifier ion signal was < LOQ, while in 1 out of the 15 samples 10 mg of flour/g feed were measured UR - https://doi.org/10.1080/1828051X.2019.1705190 T2 - Italian Journal of Animal Science DO - https://doi.org/10.1080/1828051X.2019.1705190 ER -