摘要:
A gas sensor configured to be discolored in response to a pH change upon reaction with a target gas, a refrigerator including the gas sensor, and a method of controlling the refrigerator includes a hydrogel support discolored through reaction with the target gas, and the hydrogel support includes dye provided to be discolored in response to a pH change upon reaction with the target gas.
摘要:
The present disclosure describes a method of processing a biological sample. The method includes contacting the sample with a pH indicator that changes color in response to changes in pH. The presence of a pH indicator such as cresol red provides the benefit of improved visualization of the sample, verification that the sample is properly frozen and thawed, and increased precision in pH adjustments during the assay, among other benefits.
摘要:
According to embodiments of the present application, a color changing sensor comprises a color changing indicator and a substrate comprising a gas disposed on the color changing indicator. The sensor may further comprise an interface layer that assists in containing the gas within the substrate. The sensor may be used with limited use, restricted use, or disposable apparatuses. The user may actuate the sensor by disrupting or removing the gas-containing substrate and/or the interface layer. Methods of making and using the color changing sensor and related apparatuses are also disclosed.
摘要:
The invention provides a single colorimetric reagent for the measurement of oxidizing agents such as free chlorine in a liquid sample which contains a food dye, whereby the oxidizing agent undergoes a reaction with said food dye. A preferred food dye is Brilliant Blue FCF. There is also provided a control system for regulating the volume of reagent added to a fixed volume of sample according to a control algorithm to give a chosen excess of a reagent compound beyond that required to stoichiometrically react with the target analyte in the sample. Also disclosed are single reagents for colorimetric determination of total alkalinity and calcium hardness.
摘要:
A medical instrument processor includes an enclosure, a liquid distribution system, and a disinfectant concentration measuring subsystem. The enclosure is configured to hold a medical instrument. The liquid distribution system is configured to deliver a disinfection solution to a medical instrument within the enclosure. The liquid distribution system has a liquid outlet. The disinfectant concentration measuring subsystem includes a first mixing chamber in fluid communication with the liquid outlet, a pump that is configured to simultaneously pump the disinfection solution and the reagent solution into the first mixing chamber, and a concentration analysis assembly that is operable to determine a concentration of disinfectant in a sample solution that is output from the first mixing chamber. The reservoir is in fluid communication with the first mixing chamber.
摘要:
A general purpose device, system, and program perform colorimetric analysis by automatically comparing the color of an object to be analyzed with reference information. The device includes an imaging unit that takes images of the object to be analyzed; a memory unit that stores reference information of color information of the object in accordance with properties of the object; a conversion unit that makes the color space of the image data and the color space of the reference information the same by converting the color spaces when the color space of the image data of the object and the color space of the reference information are different; a determination unit that determines the properties of the object by comparing the color information of the image data and the color information of the reference information in a common color space; and a display unit that displays the determination results.
摘要:
One aspect of the present invention provides a gas sensor module capable of improving selectivity and sensitivity with respect to a target gas by dissolving the target gas in an aqueous solution to sense a pH change of the aqueous solution, a refrigerator having the same and a control method for the refrigerator. In addition, one aspect of the present invention provides a gas sensor module in which ion pairs are pre-dissolved in an aqueous solution while the amount thereof and pH of an initial aqueous solution may be adjusted to adjust a sensing range and sensitivity with respect to a target gas to be sensed, a refrigerator having the same and a control method for the refrigerator. According to one aspect of the present invention, the gas sensor module to sense the amount of target gas includes an aqueous solution in which ion pairs of a substance having the same dissociation constant (pKa) as the target gas are dissolved, and senses a pH change of the aqueous solution that occurs due to the target gas being dissolved in the aqueous solution.
摘要:
Corrosion inhibiting hydraulic fluid additives, kits, and methods are disclosed. The hydraulic fluid additive may be adapted for use with brake fluid in vehicular brake systems. The kits may include an additive, a hydraulic fluid tester, and/or correlated information on test results and hydraulic fluid service actions.