Incomparison with in batch experiments (slope of 6.8 nA mg−1 LO2 and LOD of 28 mgL−1), these calibration parameters were limited by the measurement conditions as well as by the flow cell and the integrated reference and counter electrodes. Regarding the flow cell geometry and taking into account that the measurements were carried out under quiescent conditions, the available glucose in the flow cell (dimensions 4 × 4 × 0.5 mm ; volume of 8 μL) may be completely oxidized during the time frame of the analysis (30 s) taking into account the growth of the diffusion layer thickness of a diffusion-controlled electrochemical process.