Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes
Potentiometric sensors are essential in various industries due to their high sensitivity, simplicity, and cost-effectiveness. However, enhancing sensitivity, largely dependent on membrane diffusion, remains challenging. This study investigates the role of polyvinyl chloride (PVC) molecular weight an...
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Elsevier
2025-06-01
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| Series: | Sensors and Actuators Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666053925000207 |
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| author | Coral Salvo-Comino Luis E. Alonso-Pastor Clara Pérez-González Stefano Pettinelli Karina C. Núñez Carrero Miguel Ángel Rodríguez-Pérez María Luz Rodríguez-Méndez |
| author_facet | Coral Salvo-Comino Luis E. Alonso-Pastor Clara Pérez-González Stefano Pettinelli Karina C. Núñez Carrero Miguel Ángel Rodríguez-Pérez María Luz Rodríguez-Méndez |
| author_sort | Coral Salvo-Comino |
| collection | DOAJ |
| description | Potentiometric sensors are essential in various industries due to their high sensitivity, simplicity, and cost-effectiveness. However, enhancing sensitivity, largely dependent on membrane diffusion, remains challenging. This study investigates the role of polyvinyl chloride (PVC) molecular weight and plasticizer type on optimizing potentiometric sensor performance for tartaric acid detection. Two PVCs with different molecular weights (HIGH and LOW) and distinct plasticizers were evaluated. Results demonstrated that membranes plasticized with dibutyl sebacate, a linear plasticizer, exhibited high sensitivity (0.0239 mV/pX) and repeatability, achieving a lower limit of detection (LOD = 4.31 × 10⁻⁵ M) compared to those with a bulky plasticizer. Specifically, HIGH PVC combined with a linear plasticizer provided saturation-free measurements, ensuring greater accuracy in tartaric acid quantification. This research underscores the impact of plasticizer selection on sensor optimization, enhancing accuracy and reliability in food quality control. By establishing the relationship between PVC structure and plasticizer type, this study contributes to advancing sensor technology for improved food safety and quality assessment. |
| format | Article |
| id | doaj-art-ba280eaa434145768b4cbebff5caceff |
| institution | Kabale University |
| issn | 2666-0539 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sensors and Actuators Reports |
| spelling | doaj-art-ba280eaa434145768b4cbebff5caceff2025-02-08T05:01:10ZengElsevierSensors and Actuators Reports2666-05392025-06-019100301Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodesCoral Salvo-Comino0Luis E. Alonso-Pastor1Clara Pérez-González2Stefano Pettinelli3Karina C. Núñez Carrero4Miguel Ángel Rodríguez-Pérez5María Luz Rodríguez-Méndez6Group UVASENS, Inorganic department, EII, University of Valladolid, Valladolid, Spain; BioecoUVA Research Institute, University of Valladolid, Valladolid, Spain; Corresponding authors.Dept. of Condensed Matter Physics, Cellmat Laboratory, University of Valladolid, Paseo de Belén, 7, 47011 Valladolid, SpainGroup UVASENS, Inorganic department, EII, University of Valladolid, Valladolid, SpainDAFE, University of Pisa, Via del Borghetto 80, 56124 Pisa, ItalyBioecoUVA Research Institute, University of Valladolid, Valladolid, Spain; Dept. of Condensed Matter Physics, Cellmat Laboratory, University of Valladolid, Paseo de Belén, 7, 47011 Valladolid, Spain; Corresponding authors.BioecoUVA Research Institute, University of Valladolid, Valladolid, Spain; Dept. of Condensed Matter Physics, Cellmat Laboratory, University of Valladolid, Paseo de Belén, 7, 47011 Valladolid, SpainGroup UVASENS, Inorganic department, EII, University of Valladolid, Valladolid, Spain; BioecoUVA Research Institute, University of Valladolid, Valladolid, SpainPotentiometric sensors are essential in various industries due to their high sensitivity, simplicity, and cost-effectiveness. However, enhancing sensitivity, largely dependent on membrane diffusion, remains challenging. This study investigates the role of polyvinyl chloride (PVC) molecular weight and plasticizer type on optimizing potentiometric sensor performance for tartaric acid detection. Two PVCs with different molecular weights (HIGH and LOW) and distinct plasticizers were evaluated. Results demonstrated that membranes plasticized with dibutyl sebacate, a linear plasticizer, exhibited high sensitivity (0.0239 mV/pX) and repeatability, achieving a lower limit of detection (LOD = 4.31 × 10⁻⁵ M) compared to those with a bulky plasticizer. Specifically, HIGH PVC combined with a linear plasticizer provided saturation-free measurements, ensuring greater accuracy in tartaric acid quantification. This research underscores the impact of plasticizer selection on sensor optimization, enhancing accuracy and reliability in food quality control. By establishing the relationship between PVC structure and plasticizer type, this study contributes to advancing sensor technology for improved food safety and quality assessment.http://www.sciencedirect.com/science/article/pii/S2666053925000207Potentiometric sensorPVC membraneTartaric acidPlasticizer |
| spellingShingle | Coral Salvo-Comino Luis E. Alonso-Pastor Clara Pérez-González Stefano Pettinelli Karina C. Núñez Carrero Miguel Ángel Rodríguez-Pérez María Luz Rodríguez-Méndez Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes Sensors and Actuators Reports Potentiometric sensor PVC membrane Tartaric acid Plasticizer |
| title | Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes |
| title_full | Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes |
| title_fullStr | Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes |
| title_full_unstemmed | Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes |
| title_short | Impact of molecular structure and plasticization of PVC membranes in the response of solid-state ion-selective electrodes |
| title_sort | impact of molecular structure and plasticization of pvc membranes in the response of solid state ion selective electrodes |
| topic | Potentiometric sensor PVC membrane Tartaric acid Plasticizer |
| url | http://www.sciencedirect.com/science/article/pii/S2666053925000207 |
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