title: Multicomponent analysis of drinking water by a voltammetric electronic tongue.
abstract: A voltammetric electronic tongue is described that was used for multicomponent analysis of drinking water. Measurements were performed on drinking water from a tap and injections of the compounds NaCl, NaN(3), NaHSO(3), ascorbic acid, NaOCl and yeast suspensions could be identified by use of principal component analysis (PCA). A model based on partial least square (PLS) was developed for the simultaneously prediction of identification and concentration of the compounds NaCl, NaHSO(3) and NaOCl. By utilizing this type of non-selective sensor technique for water quality surveillance, it will be feasible to detect a plurality of events without the need of a specific sensor for each type of event.
authors.affiliation: The Swedish Sensor Centre and the Division of Applied Physics, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden. frw@ifm.liu.se
authors.forename: Fredrik
authors.initials: F
authors.lastname: Winquist
authors.forename: John
authors.initials: J
authors.lastname: Olsson
authors.forename: Mats
authors.initials: M
authors.lastname: Eriksson