Abstract
In this work, by incorporation of newly synthesized metal–organic framework (MOF) into the carbon paste matrix, and electropolymerization of melamine at the resulted electrode, a new sensor was designed for enhanced sensing of omeprazole (OMZ) and pantoprazole (PNZ). Characterization of MOF was accomplished by X-ray diffraction, scanning electron microscopy, Brunauer-Emmett-Teller (BET) surface area analysis, and FT-IR. The influence of affective factors on the electrode quality was inspected. As a result, the carbon paste electrode modified with 7% MOF and applying 30 cycles in polymeric condition wielded notable enhancement for OMZ and PNZ' signals in Britton-Robinson buffer solution (pH 6.0). Three and two linear ranges have been gained for OMZ and PNZ concentration within the various ranges of 0.05–60.0 μmol L−1 and 0.6–50.0 μmol L−1, with detection limits of 0.01 μmol L−1 and 0.15 μmol L−1 respectively. The rightness of the designed sensor for OMZ and PNZ determination in pharmaceutical formulations and human fluid was verified with acceptable results.
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