Left: q-¹H-NMR spectrum (Sect. 2.2.1.a) of a Mexican Malbec 2019 organic extract showing the relevant assigned signals such as benzene-d6 (magenta), tetramethylsilane (red) and extracted PDMS (green). Right: the 2D DOSY-NMR spectrum of the same Mexican Malbec 2019 organic extract, showing the average diffusion coefficients obtained with pulse sequence shown in Fig. 2A and Eqs. (3)-(5), with values of D= 2.01x10^-9 m²s^-1 (benzene-d6), 1.89x10^-9 m²s^-1 (TMS) and 2.1x10^-10 m²s^-1 (PDMS), correlated with their ¹H chemical shifts at respectively 7.25 ppm, 0.0 ppm and 0.285 ppm.