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| Autores principales: | , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Chemical communications (Cambridge, England)
2024
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| Acceso en línea: | https://pubmed.ncbi.nlm.nih.gov/39468977/ |
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- Polymeric membrane ion-selective electrode based on potential-modulated ion transfer: ultrasensitive measurement of oceanic pH. Liu, Lu Liu, Yuanxin Jiang, Tianjia Liang, Rongning Qin, Wei The application of a potentiometric pH electrode in ocean acidification observation is still a challenge due to its poor sensitivity to small pH changes. Herein, a simple approach to remarkably improve the detection precision of a polymeric membrane ion-selective electrode is proposed based on the potential-modulated ion transfer mechanism. The present sensing strategy displays highly sensitive responses to small pH changes for seawater analysis with a precision of 5 μpH, which is 2 orders of magnitude lower than that of the conventional pH electrode.