Two Analyte Calibration From The Transient Response Of Potentiometric Sensors Employed With The SIA Technique
- Sensors and Biosensors Group, Chemistry Dept., Universitat Autonoma de Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona (Spain)
- Chemistry Dept, St. Petersburg University, Universitetskaya nab. 7/9, 199034 St. Petersburg (Russian Federation)
Calibration models for multi-analyte electronic tongues have been commonly built using a set of sensors, at least one per analyte under study. Complex signals recorded with these systems are formed by the sensors' responses to the analytes of interest plus interferents, from which a multivariate response model is then developed. This work describes a data treatment method for the simultaneous quantification of two species in solution employing the signal from a single sensor. The approach used here takes advantage of the complex information recorded with one electrode's transient after insertion of sample for building the calibration models for both analytes. The departure information from the electrode was firstly processed by discrete wavelet for transforming the signals to extract useful information and reduce its length, and then by artificial neural networks for fitting a model. Two different potentiometric sensors were used as study case for simultaneously corroborating the effectiveness of the approach.
- OSTI ID:
- 21316741
- Journal Information:
- AIP Conference Proceedings, Vol. 1137, Issue 1; Conference: 13. international symposium on olfaction and electronic nose, Brescia (Italy), 15-17 Apr 2009; Other Information: DOI: 10.1063/1.3156611; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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