Universal coulometric nanotitrators with potentiometric detection

被引:29
作者
Guenat, OT [1 ]
Morf, WE [1 ]
van der Schoot, BH [1 ]
de Rooij, NF [1 ]
机构
[1] Univ Neuchatel, Inst Microtechnol, CH-2007 Neuchatel, Switzerland
关键词
nanotitration; coulometry; potentiometric detection;
D O I
10.1016/S0003-2670(98)00034-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This paper reports and fully characterizes a coulometric nanotitrator and its application for four different types of titrations: precipitation, complex-formation. redox and acid-base nanotitrations. This simple device, composed of Pt or Ag planar electrodes located in a microchannel, gives very reproducible results and yields a linear relationship between the analyte concentration and the equivalence time for concentrations up to 10(-2) M of analyte. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:261 / 272
页数:12
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