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	Simulation and experimental verification of the dependence of collection efficiency on the shape of a dual micropipette
	Gao Zhao ; Li Bo ; Zhao WenBo ; Chen Yong ; Hu Mo ; Liang ZhongWei ; Zhou ShuLin ; Shao YuanHua
	2011
关键词	boundary element method dual micropipettes collection efficiency simulation BOUNDARY-ELEMENT METHOD LIQUID/LIQUID INTERFACE CHARGE-TRANSFER IONIC REACTIONS VOLTAMMETRY FABRICATION ELECTRODE
英文摘要	The current responses of a generation/collection (G/C) system based on dual micropipettes are simulated by the boundary element (BE) method, from which the collection efficiencies for various pipettes with different geometries are calculated. The influence of the shape of a dual micropipette on the collection efficiency, such as curvature and symmetry of the pipette, as well as the thickness of glassy band between generator and collector, is presented and discussed in detail. Moreover, the simulation results have been tested using the experiments of potassium and sodium ions transfers facilitated by dibenzo-18-crown-6 (DB18C6) at the water/1,2-dichloroethane (W/DCE) interface. These results demonstrate that the BE method is an efficient and useful approach for the simulation of collection efficiency of symmetric geometries of dual micropipettes operating in the G/C mode under transport conditions of diffusion control. However, there are still some problems for the cases of asymmetric dual micropipettes, which show rather large differences between the values of simulated and experimental ones. This work also indicates that such an ionic G/C technique should have advantages in applications when the dual pipettes have symmetric geometries.; Chemistry, Multidisciplinary; SCI(E); EI; 0; ARTICLE; 8; 1311-1318; 54
语种	英语
出处	SCI ; EI
出版者	science china chemistry
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/238504]
专题	数学科学学院 化学与分子工程学院
推荐引用方式 GB/T 7714	Gao Zhao,Li Bo,Zhao WenBo,et al. Simulation and experimental verification of the dependence of collection efficiency on the shape of a dual micropipette. 2011-01-01.

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