Département de Chimie, Ecole Normale Supérieure, UMR CNRS-ENS-UPMC 8640 Pasteur, 24 rue Lhomond, F-75231 Paris Cedex 05, France.
Anal Chem. 2011 Jun 1;83(11):4170-7. doi: 10.1021/ac2004604. Epub 2011 May 3.
Chronoamperometric transient regimes were investigated at a single channel microband electrode during chronoamperometric measurements in a microchannel continuously filled by a redox solution. Simulations were performed by spanning a wide range of conditions according to the geometry of microdevices, flow velocity, and time scale of experiments. Boundary conditions were identified and zone diagrams were established showing the predominance areas of transient and steady-state regimes. The predictions were compared to chronoamperometric experiments performed with microdevices of various geometries. The good agreement observed between data validated the predictions.
在微通道中连续填充氧化还原溶液的情况下，通过单通道微带电极进行计时电流测量时，研究了计时电流瞬变态。根据微器件的几何形状、流速和实验的时间尺度，通过跨越广泛的条件范围进行了模拟。确定了边界条件，并建立了区域图，显示了瞬态和稳态的优势区域。将预测结果与具有不同几何形状的微器件进行的计时电流实验进行了比较。观察到的数据之间的良好一致性验证了预测结果。
