Abstract: It is an object of the present invention to provide: an oxygen indicator aqueous solution for an oxygen detector that has high heat resistance, can be stored at room temperature, and can maintain an excellent ability to detect oxygen, regardless of the atmospheric temperature; an oxygen detector; and a method for manufacturing an oxygen detector. In order to achieve this object, there is provided an oxygen indicator aqueous solution for an oxygen detector that is an aqueous solution comprising reducing saccharides, a basic substance, and a redox dye reduced by the reducing saccharides, the aqueous solution comprising, as the reducing saccharides, a monosaccharide as a first component and a reducing trisaccharide as a second component. In addition, there is provided a manufacturing method preferred for the manufacturing of the oxygen detector.

Abstract: It is an object of the present invention to provide: an oxygen indicator aqueous solution for an oxygen detector that has high heat resistance, can be stored at room temperature, and can maintain an excellent ability to detect oxygen, regardless of the atmospheric temperature; an oxygen detector; and a method for manufacturing an oxygen detector. In order to achieve this object, there is provided an oxygen indicator aqueous solution for an oxygen detector that is an aqueous solution comprising reducing saccharides, a basic substance, and a redox dye reduced by the reducing saccharides, the aqueous solution comprising, as the reducing saccharides, a monosaccharide as a first component and a reducing trisaccharide as a second component. In addition, there is provided a manufacturing method preferred for the manufacturing of the oxygen detector.

Abstract: The oxygen detecting device (10) of the present invention includes an oxygen detector sheet having a sheet carrier (13) having a porous inorganic material filled therein which has been impregnated with an oxygen detecting fluid, and a film (11) having a predetermined oxygen transmittance for covering and sealing the sheet carrier (13). Since the sheet having the porous inorganic material filled therein is adopted, the oxygen detecting device has an excellent light resistance, leading to clear recognition of coloration for a long period of time. Because of excellent light resistance, the device keeps excellent property even after long exposure to a fluorescent lamp in a display case for displaying foods. Thus the device is suitable for checking quality of commercial products.

Abstract: The oxygen detecting device (10) of the present invention includes an oxygen detector sheet having a sheet carrier (13) having a porous inorganic material filled therein which has been impregnated with an oxygen detecting fluid, and a film (11) having a predetermined oxygen transmittance for covering and sealing the sheet carrier (13). Since the sheet having the porous inorganic material filled therein is adopted, the oxygen detecting device has an excellent light resistance, leading to clear recognition of coloration for a long period of time. Because of excellent light resistance, the device keeps excellent property even after long exposure to a fluorescent lamp in a display case for displaying foods. Thus the device is suitable for checking quality of commercial products.

Abstract: A temperature history indicator equipped with an oxygen detecting agent main body which changes in color in response to the oxygen concentration and a slightly gas-permeable packaging film for sealing and coating said oxygen detecting agent main body. The packaging film is a laminated film of two or more kinds of films including any of polymers selected from polyethylene terephthalate (PET), polyacrylonitrile (PAN), polyamide (NY) and polyethylene (PE). A temperature history indicator set equipped with the temperature history indicator and color sample showing the relationship between a temperature and a color tone change with time is also provided. A method of controlling a temperature history of goods by using the above-mentioned indicator is also disclosed.

Abstract: There is provided a method for controlling the quality of a product, characterized in that a product and an oxygen detecting agent having a predetermined sensitivity corresponding to the kind of the product and quality control conditions for the product are provided in combination and the quality of the product is controlled by taking advantage of such a phenomenon that, when a predetermined period of time corresponding to the kind of the product and the quality control conditions for the product has elapsed, the oxygen detecting agent undergoes a change in color as a result of the detection of the concentration of oxygen, which has infiltrated the oxygen detecting agent, by the oxygen detecting agent.

Abstract: A multi-item analyzer includes a first analyzing module for performing analysis items having a larger request in number arranged in the upstream side of a transporting line, and a second analyzing module for performing analysis items having a smaller request in number arranged in the downstream side. A sample sampling position for the analyzing module in the upstream side is provided on the transporting line, and a sample sampling position for the analyzing module in the downstream side is provided on a rack receiving area.