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Analytical Tool for...
Analytical Tool for Quality Control of Irrigation Waters via a Potentiometric Electronic Tongue
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- Miras, Marina (författare)
- Univ Murcia, Dept Analyt Chem, Murcia 30100, Spain.
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- Cuartero, Maria, PhD, 1984- (författare)
- KTH,Tillämpad fysikalisk kemi,Univ Catolica San Antonio Murcia, UCAM SENS, UCAM HiTech, Avda Andres Hernandez Ros 1, Murcia 30107, Spain.
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- Garcia, Maria Soledad (författare)
- Univ Murcia, Dept Analyt Chem, Murcia 30100, Spain.
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- Ruiz, Alberto (författare)
- Univ Murcia, Dept Informat & Syst, Murcia 30100, Spain.
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- Ortuno, Joaquin Angel (författare)
- Univ Murcia, Dept Analyt Chem, Murcia 30100, Spain.
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Univ Murcia, Dept Analyt Chem, Murcia 30100, Spain Tillämpad fysikalisk kemi (creator_code:org_t)
- MDPI AG, 2023
- 2023
- Engelska.
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Ingår i: Chemosensors. - : MDPI AG. - 2227-9040. ; 11:7
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- A potentiometric electronic tongue (ET) for the analysis of well and ditch irrigation water samples is herein proposed. The sensors' array is composed of six ion-selective electrodes based on plasticized polymeric membranes with low selectivity profiles, i.e., the membranes do not contain any selective receptor. The sensors differ between them in the type of ion-exchanger (sensors for cations or anions) and the plasticizer used in the membrane composition, while the polymeric matrix and the preparation protocol were maintained. The potentiometric response of each sensor towards the main cations (Na+, K+, Ca2+, Mg2+) and anions (HCO3-, Cl-, SO42-, NO3-) expected in irrigation water samples was characterized, revealing a fast response time (<50 s). A total of 19 samples were analyzed with the sensor array at optimized experimental conditions, but, also, a series of complementary analytical techniques were applied to obtain the exact ion composition and conductivity to develop a trustable ET. The principal component analysis of the final potential values of the dynamic response observed with each sensor in the array allows for the differentiation between most of the samples in terms of quality. Furthermore, the ET was treated with a linear multivariate regression method for the quantitative determination of the mentioned ions in the irrigation water samples, revealing rather good prediction of Mg2+, Na+, and Cl- concentrations and acceptable results for the rest of ions. Overall, the ET is a promising analytical tool for irrigation water quality, exceeding traditional characterization approaches (conductivity, salinity, pH, cations, anions, etc.) in terms of overhead costs, versatility, simplicity, and total time for data provision.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Nyckelord
- potentiometric ion-selective electrodes
- general selectivity profile
- qualitative and quantitative electronic tongue
- water quality predictor
- irrigation water samples
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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