“…The TIC procedure can be useful to characterize and compare overall chemical profiles (Baeckens, García‐Roa, Martín, & Van Damme, ; Baeckens, Martín, García‐Roa, & van Damme, ; Baeckens, Martín, García‐Roa, Pafilis, et al., ; García‐Roa, Jara, López, Martín, & Pincheira‐Donoso, ), probably reflecting the “chemosensory perception” that a lizard may have of a secretion. Nevertheless, when the target is one or more particular compounds, it is advisable to ensure independence of these by means of including an internal standard, as has been performed in the SQ procedure (García‐Roa, Sáiz, et al., ). We are also aware that SQ procedure requires certain considerations.…”