An analysis device measures ion concentration in a sample to detect an abnormality using an ion selective electrode. The analysis device includes an ion selective electrode that obtains a potential based on the ion concentration, a reference electrode that obtains a potential based on a reference liquid, a measurement unit that measures an electromotive force between the ion selective electrode and the reference electrode, an analyzer that analyzes a potential change of the electromotive force in a certain time region, and a storage that stores abnormality analysis data indicating a relation between the potential change and an abnormality of the analysis device. The analyzer acquires a parameter for the potential change of the electromotive force measured by the measurement unit, and analyzes the abnormality of the analysis device based on the parameter and the abnormality analysis data stored in the storage.

Embodiments of the present disclosure pertain to methods of capturing one or more ions from an environment by associating the environment with a composition that includes a metal-organic framework. The association results in the capture of the one or more ions by the metal-organic framework. The metal-organic frameworks may include a plurality of metals and a plurality of triphenylene-based ligands that interconnect the plurality of the metals. The methods of the present disclosure may also include a step of detecting one or more captured ions. Additional embodiments of the present disclosure pertain to the compositions for capturing one or more ions from an environment.

Embodiments of the present disclosure pertain to methods of capturing one or more ions from an environment by associating the environment with a composition that includes a metal-organic framework. The association results in the capture of the one or more ions by the metal-organic framework. The metal-organic frameworks may include a plurality of metals and a plurality of triphenylene-based ligands that interconnect the plurality of the metals. The methods of the present disclosure may also include a step of detecting one or more captured ions. Additional embodiments of the present disclosure pertain to the compositions for capturing one or more ions from an environment.

The invention provides a solid state reference electrode comprising: a reference element in ionic communication with a composite, the composite comprising a water-permeable polymeric matrix loaded with a solid inorganic salt comprising a reference anion; an electrode surface for contacting an analyte; and a solid ion-exchange material located between the electrode surface and the reference element, the solid ion-exchange material comprising one or more non-interfering ions, wherein in use the solid ionexchange material immobilises one or more interfering ions, when present in solution in the analyte, by exchange with the noninterfering ions.

The invention provides a solid state reference electrode comprising: a reference element in ionic communication with a composite, the composite comprising a water-permeable polymeric matrix loaded with a solid inorganic salt comprising a reference anion; an electrode surface for contacting an analyte; and a solid ion-exchange material located between the electrode surface and the reference element, the solid ion-exchange material comprising one or more non-interfering ions, wherein in use the solid ionexchange material immobilises one or more interfering ions, when present in solution in the analyte, by exchange with the noninterfering ions.

The present patent disclosure concerns a sensor device comprising a sensor electrode for measuring an analyte concentration in an aqueous solution and a method of preparing a sensor electrode, wherein the sensor electrode comprises a substrate having conductive means, a polymer mixture deposited on the sensor electrode adjacent to and/or in contact with the conductive means, wherein the polymer mixture comprises a semiconducting polymer comprised of monomeric units comprising one or more aromatic, preferably thiophene, moieties along a backbone chain and at least two polar side chains covalently bonded to the backbone chain, wherein the semiconducting polymer has an electron and/or hole mobility of at least 1×10.sup.−2 cm.sup.2V.sup.−1s.sup.−1, preferably at least 1×10.sup.−1 cm.sup.2V.sup.−1s.sup.−1, and wherein the polymer mixture further comprises a hydrophilic polymer comprised of monomeric units comprising one or more carbon-carbon bonds and one or more of hydroxyl, ester, carbonyl or amide moieties, wherein the semiconducting polymer to hydrophilic polymer weight ratio ranges from 1:100 to 1:1, wherein the hydrophilic polymer is cross-linked with a mole ratio of cross-linked hydrophilic polymer monomer units to non cross-linked hydrophilic polymer ranging from 1 to 25%.

A strip structure for measuring potassium ions includes: a strip having an inner space for receiving a solution therein and being formed in a plate shape; an inlet formed in the strip and capable of injecting a solution into the inner space of the strip; a potassium ion selective membrane arranged in the inner space and capable of permeating potassium ions of the solution; and a first working electrode extending in a strip shape, wherein one side of the first working electrode is arranged inside the potassium ion selective membrane and the other side of the first working electrode is on a surface of the strip.

Various embodiments may relate to a fluid transfer system. The fluid transfer system may include a chamber containing a fluid absorbing material in contact with a device. The fluid transfer system may also include a reservoir including rows of bendable support members, the reservoir connected to the chamber for transport of a fluid from the reservoir to the fluid absorbing material. The fluid transfer system may further include a mass including rows of protrusions configured to engage with the rows of bendable support members, the mass configured to be arranged in the reservoir such that forces acting on the mass include a gravitational force on the mass, a floating force exerted by the fluid on the mass, and a contact force exerted by the rows of bendable support members on the mass.

Various embodiments may relate to a fluid transfer system. The fluid transfer system may include a chamber containing a fluid absorbing material in contact with a device. The fluid transfer system may also include a reservoir including rows of bendable support members, the reservoir connected to the chamber for transport of a fluid from the reservoir to the fluid absorbing material. The fluid transfer system may further include a mass including rows of protrusions configured to engage with the rows of bendable support members, the mass configured to be arranged in the reservoir such that forces acting on the mass include a gravitational force on the mass, a floating force exerted by the fluid on the mass, and a contact force exerted by the rows of bendable support members on the mass.

A stretchable temperature sensor includes one or more elastomeric ionic conducting layers; at least two electronic conducting elements, wherein the one or more ionic conducting layers and one or more electronic conducting elements are configured and arranged to provide at least one electrical double layer at a first contact area between the ionic conducting layer and a first electronic conducting element in a sensing end and at least one electrical double layer at a contact area between the ionic conducting layer and a second electronic conducting element in an open end of the temperature sensor; wherein the second electronic conducting element provides a connection at the open end to an external circuit for measuring a signal generated in response to a temperature condition at the sensing end.