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Chemosensors
Volume 10
Issue 2
10.3390/chemosensors10020087
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Article

Modeling the Dichromatic Behavior of Bromophenol Blue to Enhance the Analytical Performance of pH Colorimetric Sensor Arrays

by
Andrea Pastore
,
Denis Badocco
,
Luca Cappellin
and
Paolo Pastore
*
Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131 Padua, Italy
*
Author to whom correspondence should be addressed.
Chemosensors 2022, 10(2), 87; https://doi.org/10.3390/chemosensors10020087
Submission received: 24 January 2022 / Revised: 15 February 2022 / Accepted: 17 February 2022 / Published: 19 February 2022
(This article belongs to the Special Issue Progress of Nanomaterials for Colorimetric Sensing)
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Abstract

The dichromatism of Bromophenol blue (BPB) was investigated by varying its concentration in the absence and presence of surfactant. A model of the indicator behavior was carried out, justifying the experimental shapes of the sigmoidal profiles of the hue (H) coordinate. The model applied to the solution was compared with the performance of colorimetric sensor arrays (CSAs) with increasing BPB concentrations. The H shape and the prediction errors of the CSAs were very similar to those predicted. The experimental results enable the changing of the slope of the calibration profiles, at will, by varying only the BPB concentration.
Keywords: colorimetric sensing; dichromatism; pH measurement; optical sensors; sol-gel polymeric layer; signal transduction colorimetric sensing; dichromatism; pH measurement; optical sensors; sol-gel polymeric layer; signal transduction
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MDPI and ACS Style

Pastore, A.; Badocco, D.; Cappellin, L.; Pastore, P. Modeling the Dichromatic Behavior of Bromophenol Blue to Enhance the Analytical Performance of pH Colorimetric Sensor Arrays. Chemosensors 2022, 10, 87. https://doi.org/10.3390/chemosensors10020087

AMA Style

Pastore A, Badocco D, Cappellin L, Pastore P. Modeling the Dichromatic Behavior of Bromophenol Blue to Enhance the Analytical Performance of pH Colorimetric Sensor Arrays. Chemosensors. 2022; 10(2):87. https://doi.org/10.3390/chemosensors10020087

Chicago/Turabian Style

Pastore, Andrea, Denis Badocco, Luca Cappellin, and Paolo Pastore. 2022. "Modeling the Dichromatic Behavior of Bromophenol Blue to Enhance the Analytical Performance of pH Colorimetric Sensor Arrays" Chemosensors 10, no. 2: 87. https://doi.org/10.3390/chemosensors10020087

APA Style

Pastore, A., Badocco, D., Cappellin, L., & Pastore, P. (2022). Modeling the Dichromatic Behavior of Bromophenol Blue to Enhance the Analytical Performance of pH Colorimetric Sensor Arrays. Chemosensors, 10(2), 87. https://doi.org/10.3390/chemosensors10020087

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