To obtain desired molecular cavities in the MIP structure, template molecules should be extracted from the deposited polymer. For that purpose, both acidic (Figure , Supplementary materials) and basic (Figure and) extraction conditions were tested. Apparently, extraction in carbonate buffer of pH = 9.1 appeared efficient. An increase of the DPV signal recorded for the MIP-coated electrode was observed after 30 minutes of extraction (Figure , curves 1' and 2'). After another half-an-hour, only a slight increase was visible (Figure , curve 3'). Therefore, we have decided that 60 minutes of extraction is sufficient to remove most of the MTZ template molecules from the MIP matrix. Importantly, when NIP filmcoated electrode was subjected to a similar treatment with carbonate buffer, only a slight drop of DPV signal was observed (Figure , Supplementary materials).