An electronic nose system for monitoring the quality of potable water
UNSPECIFIED (2000) An electronic nose system for monitoring the quality of potable water. In: 6th International Symposium on Electronic Noses (ISOEN 99), TUBINGEN, GERMANY, SEP 20-22, 1999. Published in: SENSORS AND ACTUATORS B-CHEMICAL, 69 (3). pp. 336-341.Full text not available from this repository.
A measurement system has been developed for the testing of cyanobacteria in water, and it consists of three main stages: the odour sampling system, an electronic nose (e-nose) and a CellFacts instrument that analyses liquid samples. The e-nose system, which employs an array of six commercial odour sensors, has been used to monitor not only different strains but also the growth phase of cyanobacteria (i.e. blue-green algae) in water over a 40-day period. Principal components analysis (PCA), multi-layer perceptron (MLP), learning vector quantisation (LVQ) and Fuzzy ARTMAP were used to analyse the response of the sensors. The optimal MLP network was found to classify correctly 97.1% of the unknown nontoxic and 100% of the unknown toxic cyanobacteria. The optimal LVQ and Fuzzy ARTMAP algorithms were able to classify 100% of both strains of cyanobacteria samples. The accuracy of MLP, LVQ and Fuzzy ARTMAP in terms of predicting four different growth phases of toxic cyanobacteria was 92.3%, 95.1% and 92.3%, respectively. These results show the potential application of neural network based e-noses to test the quality of potable water as an alternative to instruments, such as liquid chromatography or optical microscopy. (C) 2000 Elsevier Science S.A. All rights reserved.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||Q Science > QD Chemistry|
|Journal or Publication Title:||SENSORS AND ACTUATORS B-CHEMICAL|
|Publisher:||ELSEVIER SCIENCE SA|
|Date:||25 October 2000|
|Number of Pages:||6|
|Page Range:||pp. 336-341|
|Title of Event:||6th International Symposium on Electronic Noses (ISOEN 99)|
|Location of Event:||TUBINGEN, GERMANY|
|Date(s) of Event:||SEP 20-22, 1999|
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