Uit dit verhaal (http://pilarmartinescudero.es/OctNov15/Midronate interferencia con cromatografia.pdf) maak ik op dat i.i.g. een deel van de sporters het wel aangegeven heeft: In context of the extended method validation of a novel multi-target screening assay based on high resolution/high ac- curacy mass spectrometry, an interfering signal at m/z 147.1128 repeatedly appeared in full-scan acquisition mode of selected authentic sports drug testing specimens. As it was not observed in all urine samples, an exogenous origin was suspected. The calculated molecular formula of the un- known compound matched that of Mildronate (Meldonium), an approved drug in several countries of Eastern Europe with anti-ischemic properties, which was further in accordance with several athlete statements on the sample control form. The use of Mildronate was eventually confirmed by comparison of high resolution/high accuracy mass spectrometric data of the suspicious urine samples with a Mildronate reference standard.