Journal ArticleDOI
Large Improvement of the Lower Detection Limit of Ion-Selective Polymer Membrane Electrodes
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TLDR
The lower detection limits of ion-selective polymeric membrane electrodes (ISEs) are in the micromolar range except when sample ion activities are adjusted by using ion buffers, which maintain low and constant activity via superimposed complexation or solubility equilibria as mentioned in this paper.Abstract:
The lower detection limits of ion-selective polymeric membrane electrodes (ISEs) are in the micromolar range except when sample ion activities are adjusted by using ion buffers, which maintain low and constant activity via superimposed complexation or solubility equilibria. 1 Therefore, they are unsuitable for many important applications. In contrast, detection limits in the picomolar range have been achieved with optical sensors on the basis of similar technology and the same ionophores, 2read more
Citations
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Selectivity of potentiometric ion sensors.
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Artificial receptors for the recognition of phosphorylated molecules
Amanda E. Hargrove,Sonia Nieto,Tianzhi Zhang,Jonathan L. Sessler,Jonathan L. Sessler,Eric V. Anslyn +5 more
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Rational design of all-solid-state ion-selective electrodes and reference electrodes
TL;DR: In this article, the authors describe how all-solid-state ISEs and reference electrodes function and present important aspects that should be considered when designing such sensors for specific applications, such as reproducibility, the stability of the emf response, lowering detection limits, and novel sensor designs.
Journal ArticleDOI
Conducting Polymer‐Based Solid‐State Ion‐Selective Electrodes
TL;DR: In this paper, a review of the progress in the area of solid-contact ion-selective electrodes (solid-contact ISEs) can be found, where conducting polymers are used as the sensing membrane.
References
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Journal ArticleDOI
Selectivity coefficients for ion-selective electrodes: Recommended methods for reporting K A,B pot values (Technical Report)
Y. Umezawa,K. Umezawa,H. Sato +2 more
TL;DR: In this paper, the authors present a list of the members of the steering committee of the World Intellectual Property Ownership Association (WIPO), including the chairperson, the secretary, and the treasurer.
Journal ArticleDOI
Neutral carrier based calcium(2+)-selective electrode with detection limit in the sub-nanomolar range
TL;DR: In this article, the limite de detection de la fonction reponse de l'electrode est environ 100 pM Ca 2+ + 2 + 1.
Journal ArticleDOI
Lead-selective bulk optodes based on neutral ionophores with subnanomolar detection limits
TL;DR: In this paper, an optical sensor based on a plasticized polyvinyl chloride (PVC) bulk membrane incorporating a metal ion-selective ionophore, a protonselective chromoionophore and lipophilic anionic sites for the measurement of lead is presented.
Journal ArticleDOI
Selectivity of liquid membrane ion-selective electrodes
TL;DR: In this article, the current status of describing the selectivity of liquid membrane ion-selective electrodes (ISEs) is reviewed, and experimental procedures are presented that allow for the determination of fundamental Nikolskii coefficients of such membranes.
Journal ArticleDOI
Determination of Improved Selectivity Coefficients of Polymer Membrane Ion‐Selective Electrodes by Conditioning with a Discriminated Ion
TL;DR: In this article, a new method for determining selectivity coefficients of carrier-based ion-selective electrodes toward highly discriminated ions is proposed, where the interfacial layer of the membrane contacting the sample must contain only the ion to be measured for the experimental determination of Nikolskii coefficients that reflect the true ion-exchange selectivity of a membrane.