A screen-printed disposable enzyme electrode system for the simultaneous determination of sucrose and glucose was developed using mediated enzyme reaction and screen-printing technology. The system consisted of two carbon working electrodes (electrode I and II) and a Ag/AgCl reference electrode. Chronoamperometry was performed on quiescent solutions for the measurement steps at a constant potential of +0.4 V (vs. Ag/AgCl). The enzyme composition was optimized. The linear response ranges were up to 10 mmol/L sucrose and 15 mmol/L glucose. The sensor was applied to assay real samples. The results are in good agreement with those obtained by the reference method.
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Hu et al. (2000) studied this question.
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