A review of the use of the potentiometric electronic tongue in the monitoring of environmental systems

作者：Mimendia A; Gutierrez J M; Leija L; Hernandez P R; Favari L; Munoz R; del Valle M^*

来源：Environmental Modelling & Software, 2010, 25(9): 1023-1030.

DOI：10.1016/j.envsoft.2009.12.003

• Sensor array
• Ion-selective electrodes
• Artificial neural networks
• Electronic tongue
• Environmental monitoring

This paper introduces electronic tongue systems for remote environmental monitoring applications. This new approach in the chemical sensor field consists of the use of an array of non-specific sensors coupled with a multivariate calibration tool which may form a node of a sensor network. In our work, the proposed arrays were made up of potentiometric sensors based on polymeric membranes, and the subsequent cross-response processing was based on a multilayer artificial neural network model. Two cases are described: the environmental monitoring of ammonium pollutant plus alkaline ions at different measuring sites in the states of Mexico and Hidalgo (Mexico), and the monitoring of heavy metals (Cu(2+), Pb(2+), Zn(2+) and Cd(2+)) in open air waste streams and rivers heading down the Gulf of Mexico.

• 出版日期2010-9