Panasonic Corporation

Panasonic Healthcare Co., Ltd.

Ehime University

Yoshiteru Itagaki

Yoshihiko Sadaoka

Kouichi Hiranaka

Toyofumi Nagamatsu

Provided are a nitric oxide detection element capable of detecting NO gas contained in a mixed gas at a high speed even when the amount thereof is a super trace amount of ten and several parts per billion; and a process for producing the element. In a nitric oxide detection element having a substrateand a sensing filmformed on a surface of the substrate, the sensing film is composed of nitric oxide sensing particles and a polymer adhesive. The nitric oxide sensing particles are produced by adsorbing a dye having a porphyrin skeleton and having, as a central metal, divalent cobalt onto surfaces of inorganic particles.

Nitric oxide detection element and process for producing same

The nitrogen oxide sensing element of the present invention is such that a sensing film () is formed on the surface of a substrate (), the sensing film including a polymer containing as dispersed therein a porphyrin containing cobalt as a central metal, or a single derivative having a porphyrin skeleton containing cobalt as a central metal or a mixture of derivatives each having a porphyrin skeleton containing cobalt as a central metal; thus, this sensing element is capable of determining the concentration of NO with high sensitivity and satisfactory accuracy under the condition that the cobalt porphyrin is not affected by reaction inhibitors such as Oand CO even in the atmosphere.

Nitrogen oxide sensing element, nitrogen oxide sensor, nitrogen oxide concentration determination device using same, and method for determining nitrogen oxide concentration

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Ehime, Japan

Yoshiteru Itagaki