Abstract: This paper reports the development of a simple electroanalytical method for imazethapyr (IMT) determination in rice samples based on molecularly imprinted polymer and functionalized carbon black paste electrode (MIP-fCBPE). The proposed method showed low limit of detection (0.03 μmol L-1), a wide linear range (0.10 - 70.00 μmol L-1), and good precision in terms of repeatability of intraday measures (RSD% = 3.6). The method was applied in rice samples after microwave-assisted extraction of IMT and the accuracy of the method was evaluated by addition/recovery assays (96.3 - 105.7%), being statistically attested using HPLC-DAD as reference technique
Author keywords: Doehlert Matrix, MIP, Imidazolinones, Carbon Black