Application of Electronic Tongue for Quantitative Analysis of Mineral Water and Wine

Legin, Andrey; Rudnitskaya, Alisa; Vlasov, Yuri; Natale, Corrado Di; Mazzone, E.; D’Amico, A.

doi:10.1002/(sici)1521-4109(199907)11:10/11<814::aid-elan814>3.0.co;2-7

Cited by 125 publications

(81 citation statements)

References 14 publications

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“…No pre-processing was required, as the soil samples were simply diluted in water. An e-tongue is a multisensory system that can classify liquid samples using statistical tools [6], and various e-tongues have been reported [7,8] in numerous applications [9][10][11][12]. Recently, an electrochemical e-tongue has been successfully applied in the qualitative and quantitative analysis of distinct soil types based on their extractable components [13].…”

Section: Introductionmentioning

confidence: 99%

Microfluidic Electronic Tongue Applied to Soil Analysis

et al. 2017

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Precision agriculture is crucial for increasing food output without expanding the cultivable area, which requires sensors to be deployed for controlling the level of nutrients in the soil. In this paper, we report on a microfluidic electronic tongue (e-tongue) based on impedance measurements which is capable of distinguishing soil samples enriched with plant macronutrients. The e-tongue setup consisted of an array of sensing units made with layer-by-layer films deposited onto gold interdigitated electrodes. Significantly, the sensing units could be reused with adequate reproducibility after a simple washing procedure, thus indicating that there is no cross-contamination in three independent sets of measurements. A high performance was achieved by treating the capacitance data with the multidimensional projection techniques Principal Component Analysis (PCA), Interactive Document Map (IDMAP), and Sammon's Mapping. While an optimized performance was demonstrated with IDMAP and feature selection, during which data of a limited frequency range were used, the distinction of all soil samples was also possible with the well-established PCA analysis for measurements at a single frequency. The successful use of a simple microfluidic e-tongue for soil analysis paves the way for enhanced tools to support precision agriculture.

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Section: Introductionmentioning

confidence: 99%

Microfluidic Electronic Tongue Applied to Soil Analysis

et al. 2017

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“…Electrochemical techniques are very well established in analytical chemistry and have found a vast range of applications, there are also a number of textbooks covering the subject [7,8]. In potentiometry, a potential across a working electrode is measured when an equilibrium state is reached, corresponding to a state where the net current is equal to zero.…”

Section: General Measurement Principlesmentioning

confidence: 99%

Voltammetric electronic tongues – basic principles and applications

2008

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This review examines basic principles and applications of voltammetric electronic tongues. It is introduced by a description of the concept of electronic tongues or taste sensors followed by a general overview of electrochemical measurement principles that have been used for electronic tongues. A special emphasis is given on measurement principles for voltammetric electronic tongues, also including pulse voltammetry and variable reduction. Applications of voltammetric electronic tongue are described, such as in the food industry, environmental analysis, paper and pulp industry, household appliances and agriculture. Future developments of the concept, such as self polishing or miniaturized devices are also described. Finally, a continuous measurement system for chemical oxygen demand (COD), which has been commercialized, is depicted.

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“…Sensors made of chalcogenide glass and PVC-based polymer membranes with enhanced crosssensitivity can be incorporated into a sensor array as described in [15,16,[25][26][27][28][29] …”

Section: Analytical Proceduresmentioning

confidence: 99%

“…In [25][26][27], measurements performed on six Italian mineral waters, A-F, and tap water from the Rome water supply system are described. The measurements were performed in seven experimental sessions, one session per day, over two weeks.…”

Section: And Refs Cited Therein]mentioning

confidence: 99%

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Nonspecific sensor arrays ("electronic tongue") for chemical analysis of liquids (IUPAC Technical Report)

Vlasov

Legin

Rudnitskaya

et al. 2005

Pure and Applied Chemistry

372

185

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The history of the development of potentiometric sensors over the past century demonstrates progress in constructing single, discrete (i.e., separate, to distinguish from sensor arrays) ion sensors, which have been made as selective as possible. Only a few types reveal high selectivity. However, easy measurement procedure, with low cost and availability, give rise to the search for new ways for their successful application. The present document describes a new concept for application of potentiometric multisensor systems, viz., sensor arrays for solution analysis, and the performance of this new analytical tool - the "electronic tongue". The electronic tongue is a multisensor system, which consists of a number of low-selective sensors and uses advanced mathematical procedures for signal processing based on the pattern recognition (PARC) and/or multivariate analysis [artificial neural networks (ANNs), principal component analysis (PCA), etc.]. Definitions of the multisensor systems and their parameters are suggested. Results from the application of the electronic tongue, both for quantitative and qualitative analysis of different mineral water and wine samples, are presented and discussed.

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Application of Electronic Tongue for Quantitative Analysis of Mineral Water and Wine

Cited by 125 publications

References 14 publications

Microfluidic Electronic Tongue Applied to Soil Analysis

Microfluidic Electronic Tongue Applied to Soil Analysis

Voltammetric electronic tongues – basic principles and applications

Nonspecific sensor arrays ("electronic tongue") for chemical analysis of liquids (IUPAC Technical Report)

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