Simultaneous and automated monitoring of the multimetal biosorption processes by potentiometric sensor array and artificial neural network

Wilson, Deivy; Valle, Manel del; Alegret, Salvador; Valderrama, César; Florido, Antonio

doi:10.1016/j.talanta.2013.03.066

Cited by 12 publications

(2 citation statements)

References 46 publications

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“…Data were modeled by an ANN, and RMSE values at~0.07 mmol L −1 could be determined. The system was also adapted to monitor in real-time binary (Cu 2+ /Pb 2+ ), (Cu 2+ /Zn 2+ ) and ternary (Cu 2+ /Pb 2+ /Zn 2+ ), (Cu 2+ /Zn 2+ /Cd 2+ ) mixtures, simultaneously releasing Ca 2+ ions in the effluent solution [64]. This task was only possible due to a more elaborated algorithm employed in the ANN modeling that was applied using the Fourier transform during model optimization, establishing the affinity order Pb 2+ > Cu 2+ > Zn 2+ > Cd 2+ .…”

Section: Computational Analysis Assisting E-tongues In the Detection mentioning

confidence: 99%

Heavy Metal/Toxins Detection Using Electronic Tongues

2019

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The growing concern for sustainability and environmental preservation has increased the demand for reliable, fast response, and low-cost devices to monitor the existence of heavy metals and toxins in water resources. An electronic tongue (e-tongue) is a multisensory array mostly based on electroanalytical methods and multivariate statistical techniques to facilitate information visualization in a qualitative and/or quantitative way. E-tongues are promising analytical devices having simple operation, fast response, low cost, easy integration with other systems (microfluidic, optical, etc) to enable miniaturization and provide a high sensitivity for measurements in complex liquid media, providing an interesting alternative to address many of the existing environmental monitoring challenges, specifically relevant emerging pollutants such as heavy metals and toxins.

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Section: Computational Analysis Assisting E-tongues In the Detection mentioning

confidence: 99%

Heavy Metal/Toxins Detection Using Electronic Tongues

2019

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“…With their use, an important advantage is the generation of multivariate data, that afterwards also makes possible the interpretation of complex compositions, the resolution of mixtures, the deconvolution of the contributions from primary species and their interferents, or even, to distinguish between spurious responses and the true ones [6]. ET systems are mainly applied in solving qualitative problems in food industry [7][8][9], but also, their virtues can be exploited in the quantification of a wide variety of analytes in fields such as medical [10,11], environmental [12][13][14] and also food and beverages [15,16].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Titration of Ternary Mixtures of Pb(II), Cd(II) and Cu(II) with Potentiometric Electronic Tongue Detection

2015

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An automatic titration method is reported to resolve ternary mixtures of transition metals (Pb 2+ , Cd 2+ and Cu 2+ ) employing electronic tongue detection and a reduced number of pre-defined additions of EDTA titrant. Sensors used were PVC membrane selective electrodes with generic response to heavy-metals, plus an artificial neural network response model. Detection limits obtained were ca. 1 mg·L -1 for the three target ions and reproducibilities 3.0% for Pb 2+ , 4.1% for Cd 2+ and 5.2% for Cu 2+ . The system was applied to contaminated soil samples and high accuracy was obtained for the determination of Pb 2+ . In the determination Cd 2+ and Cu 2+ , sample matrix showed a significant effect.

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