title: Triangle-programmed coulometric nanotitrations completed by continuous flow with potentiometric detection
abstract: 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 flow-through type.
authors.affiliation: SAMLAB, Institute of Microtechnology, University of Neuchatel, Switzerland. Olivier.Guenat@imt.unine.ch
authors.initials: OT
authors.lastname: Guenat
authors.lastname: van der Schoot BH
authors.initials: WE
authors.lastname: Morf
authors.lastname: de Rooij NF