Horiba, Ltd.

Mie University

Horiba Advanced Techno, Co., Ltd.

Horiba Stec, Co., Ltd.

Kabushiki Kaisha Pilot Corporation

Yuji Nishio

Yasukazu Iwamoto

Tadanori Hashimoto

Akio Ishii

Taro Tozuka

Katsunobu Ehara

Hashimoto Tadanori

This invention is to provide an electrode device whose manufacturing cost is suppressed and whose surface is difficult to be polluted. The electrode device comprises an internal electrode, an enclosure that houses the internal electrode, an internal solution that is housed in the enclosure and that electrically communicates a liquid junction formed in the enclosure or a response glass that forms a part or all of the enclosure with the internal electrode, and an antifouling mechanism that has a light source to irradiate ultraviolet rays on a sample contact surface of the enclosure as being a surface that makes contact with a sample and that prevents the sample contact surface of the enclosure from being polluted, and the light source is directly or indirectly mounted on an outside of the enclosure, or the light source is housed inside of the enclosure.

Electrode device

In order to improve the endurance of this internal solution for a reference electrode beyond that in the prior art, the solution is made to contain a copolymerized material of a crosslinker having a plurality of non-acrylamide functional groups, and a non-acrylamide monofunctional hydrophilic monomer.

Internal solution for reference electrode, reference electrode, and glass electrode

Disclosed are a measurement method and a measurement apparatus both of which can measure the content of water or an organic acid in a polar organic solvent with high accuracy even when water or the organic acid is contained in the polar organic solvent at a low content. The content of water or an organic acid in a polar organic solvent can be measured by using, as a work electrode, an ISFET electrode in which a thin film comprising an oxide or nitride of a metal or metalloid element belonging to Groups 3 to 15 is formed on a gate.

Method for measurement of content of water or organic acid in polar organic solvent, and apparatus for the method

Disclosed is a sensitive glass for use in a pH-sensitive glass electrode, which comprises at least MeO(Me represents a lanthanoid) and further comprises YOor ScOin an amount smaller than that of the MeO. Also disclosed is a sensitive glass for use in a cation-sensitive glass electrode, which comprises at least YOor ScO.

Glass electrode and sensitive glass for the glass electrode

Disclosed is an ion-selective electrode having excellent mechanical strength, excellent durability, low membrane resistance and good ion response accuracy. This ion-selective electrode comprises a response glass membrane which has ion selectivity and is made of an oxynitride glass containing Li.

Ion-selective electrode

An ion-selective electrode has a responsive glass membrane with an exterior thin film containing titanium dioxide of an anatase type that is continuously formed as an integrated body. The thin film, of several hundred nm in numbers, is electrically connected by an amount of titanium dioxide that will form a continuity in the thin film structure. The thin film can be porous and contain at least one metal selected from cobalt, nickel, tungsten, copper, platinum, gold, silver and iron. Additionally, significantly larger titanium dioxide particles of 0.02 &#x3bc;m in diameter can be further mixed into the thin film.

Responsive glass membrane and glass electrode

Disclosed is a sensitive glass film for a pH electrode, which is not deteriorated in its glass strength or pH-measuring function, which is hardly stained, and from which any stain can be removed easily. Also disclosed is a pH electrode having the sensitive glass film. A microparticle comprising rutile-type or brookite-type titanium dioxide or a microparticle comprising amorphous titanium dioxide is adhered directly on the glass film surface of a sensitive glass film for a pH electrode.

Method for production of responsive glass membrane for ion electrode, responsive glass membrane for ion electrode, and ion electrode

The present claimed invention intends to provide a responsive glass membrane for ion selective electrode glass and an ion selective electrode comprising the responsive glass membrane that produces a self-cleaning function when the ultraviolet rays are irradiated although no change is brought in a composition of a sample solution as being an object to be measured and that is low in electric resistance value and superior in responsivity under an ordinary measurement environment. The responsive glass membrane for ion selective electrode is made of the titanium-containing oxide glass that contains 20&#x2dc;80 mol % of titanium dioxide and lithium oxide.

Growing community of inventors

Kyoto, Japan

Yuji Nishio