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. 2021 Jan 12;11:599158. doi: 10.3389/fpls.2020.599158

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Copyright © 2021 Righetti, Rolli, Dellafiora, Galaverna, Suman, Bruni and Dall’Asta.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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AFM1 confirmation analysis. Retention time and HRMS/MS comparison between calibration standard and maize extract analyzed in the same sequence. The maize extract was passed through an immunoaffinity column for selective clean-up. UHPLC-Q-Exactive full scan (on the left) extracted ion chromatogram (resolving power 70,000 FWHM, extraction window 5 ppm) and (right side) fragmentation pattern obtained with a collision energy of 30 eV.