The MIP film-coated carbon-based electrodes were applied for MTZ determination in spiked honey samples (Figure ). For that purpose, honey bought on the open market in Poland was diluted 1000 times with solution of 1 mM Ru(NH3)6Cl3 in 0.1 M KCl(aq). Then it was spiked with known amounts of MTZ. A some matrix effect was observed and slightly smaller changes of current were observed in honey sample than in pristine KCl solution. When obtained data were visualized in semi-log scale it became visible that response in real sample is only slightly lower but slopes of both calibration curves were similar. That is, it is equal to 18.62(±0.31)[%/log(nM)] in honey in comparison to 17.38 (±0.51)[% / log(nM)] reported for pristine KCl solution.