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http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121645
Title: | Potentiometric E-Tongue system for geosmin/isoborneol presence monitoring in drinkable water. |
Authors: | LVOVA, L.![]() ![]() JAHATSPANIAN, I. ![]() ![]() MATTOSO, L. H. C. ![]() ![]() CORREA, D. S. ![]() ![]() OLENEVA, E. ![]() ![]() LEGIN, A. ![]() ![]() DI NATALE, C. ![]() ![]() PAOLESSE, R. ![]() ![]() |
Affiliation: | LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; DANIEL SOUZA CORREA, CNPDIA. |
Date Issued: | 2020 |
Citation: | Sensors, n. 20, 2020. |
Pages: | 1-10 |
Description: | A potentiometric E-tongue system based on low-selective polymeric membrane and chalcogenide-glass electrodes is employed to monitor the taste-and-odor-causing pollutants, geosmin (GE) and 2-methyl-isoborneol (MIB), in drinkable water. The developed approach may permit a low-cost monitoring of these compounds in concentrations near the odor threshold concentrations (OTCs) of 20 ng/L. The experiments demonstrate the success of the E-tongue in combination with partial least squares (PLS) regression technique for the GE/MIB concentration prediction, showing also the possibility to discriminate tap water samples containing these compounds at two concentration levels: the same OTC order from 20 to 100 ng/L and at higher concentrations from 0.25 to 10 mg/L by means of PLS-discriminant analysis (DA) method. Based on the results, developed multisensory system can be considered a promising easy-to-handle tool for express evaluation of GE/MIB species and to provide a timely detection of alarm situations in case of extreme pollution before the drinkable water is delivered to end users. |
Keywords: | Taste-and-odor-causing compounds Pontentiometric E-tongue 2-methyl-isoborneol Water potability assessment |
DOI: | 10.3390/s20030821 |
Type of Material: | Artigo de periódico |
Access: | openAccess |
Appears in Collections: | Artigo em periódico indexado (CNPDIA)![]() ![]() |
Files in This Item:
File | Size | Format | |
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P-Potentiometric-E-Tongue-System-for-....pdf | 1,68 MB | Adobe PDF | View/Open |