Triangle-programmed coulometric nanotitrations completed by continuous flow with potentiometric detection

被引：12

作者：

Guenat, OT ^{[1
]}

van der Schoot, BH ^{[1
]}

Morf, WE ^{[1
]}

de Rooij, NF ^{[1
]}

机构：

[1] Univ Neuchatel, Inst Microtechnol, SAMLAB, CH-2007 Neuchatel, Switzerland

来源：

ANALYTICAL CHEMISTRY | 2000年 / 72卷 / 07期

关键词：

D O I：

10.1021/ac990488q

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Coulometric nanotitrations were realized in a microchannel system using a continuous-flow titration technique with a triangle current-time profile. Redox and acid-base titrations were carried out on Fe(II) and nitric acid samples, respectively, with the same nanotitrator device. A linear relation between the concentration and the coulometric current transferred to the solution was found. The advantages of this universally applicable nanotitrator are fast response, low sample volume, high sensitivity, and high reproducibility as well as the convenience of handling an automated analyzer of the now-through type.

引用

页码：1585 / 1590

页数：6

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