摘要:
A color measuring apparatus including a photoelectric conversion device for outputting basic color signals corresponding to quantities of light of basic color components of a sample, respectively, a calculating device for calculating a color value of the sample in a predetermined colorimetric system, a target setting device for setting a target color value of the sample in the predetermined colorimetric system, a region setting device for setting a predetermined region containing the target color value, a region decision device for deciding whether or not the color value falls within the predetermined region, an approximation decision device for deciding whether or not the color value has most approximated to the target color value and an output device for outputting a result of the decision of the approximation decision device.
摘要:
A photoelectric colorimeter which comprises a photoelectric conversion section including an optical filter to analyze light coming from a test piece and a reference calibrating sample into primary color elements, and a photosensor to convert each of said primary color elements into an electric signal; and a data processing section including a calibration constant calculating device for calculating a calibration constant for each of a plurality of reference calibrating samples on the basis of a calibration point of each of the reference calibrating samples and an information inputted from said photoelectric conversion section, a chromaticity point calculation device for calculating a chromaticity point of the test piece and that of each reference calibrating sample, a memory device for memorizing the calibration constant and calibration point of each of the reference calibrating samples, a device for estimating a new calibration constant suitable for the chromaticity point of the test piece between the respective calibration constants of the reference calibrating samples through the interpolation using a positional relation between the chromaticity point of the calibration point and that of the test piece as a parameter, and a correction device for correcting measured value of the test piece by the new calibration constant.
摘要:
The present invention relates to a fluorescent label characterized by containing a hydrophilic polymer having an anionic group, a polyether derivative, and a phosphor, in which the phosphor is bound to the hydrophilic polymer via the polyether derivative, and also relates to a fluorescently labeled recognition substance labeled with the fluorescent label, and an immunoassay method using the recognition substance.
摘要:
The present invention relates to a fluorescent label characterized by containing a hydrophilic polymer having an anionic group, a polyether derivative, and a phosphor, in which the phosphor is bound to the hydrophilic polymer via the polyether derivative, and also relates to a fluorescently labeled recognition substance labeled with the fluorescent label, and an immunoassay method using the recognition substance.
摘要:
Disclosed are a color developing method utilizing the reaction of an indolyl derivative with an enzyme in the presence of a specific free radical compound and/or a specific chelate compound, and an enzyme immunoassay using the color developing method.
摘要:
A two-dimensional colorimeter focuses light through a beam splitter onto a rotary filter so that a first light receiving element can receive light from multiple points on a sample. A rotating filter can provide multiple measurements based upon different wavelengths of light. A portion of the light from the beam splitter also contacts a spectral sensor which separates the light from a particular point into primary wavelength elements which are converted into electrical signals. Based upon these primary wavelength elements, the first signals from the light receiving element are corrected. As a result, the measurement of chromaticity of multiple points on a sample can be performed accurately using a device of simple construction.
摘要:
A method for determining the activity of cholinesterase comprising the steps of:mixing a solution containing p-methoxybenzoate demethylmonooxygenase, nicotinamide adenine dinucleotide reduced form (NADH) and p-methoxybenzoyl choline cation having the following formula: ##STR1## with a liquid containing cholinesterase, measuring the decrease in absorbance of light by NADH, which is based on a consumption of NADH, and calculating the activity of cholinesterase therefrom.
摘要:
A hand-carriable, compact color meter for indicating proper amount of adjustment of color compensation filters interposed in the light path of a color printer for the compensation of color balance of the light illuminating a film or the slide set on the printer. The color meter includes an indicating lamp, a photocell to be exposed to the light passing through the film or slide, a plurality of optical color filters selectively disposed in front of the photocell to provide the photocell with spectral sensitivities corresponding to the spectral sensitivity of the printing paper, a plurality of fixed or variable resistors selectable in correspondence to the selection of the color filter, and an electric circuit for actuating the indicating lamp in accordance with the relationship between the output of the light measuring circuit and a reference voltage commensurate with the selected one of the resistors. In a preferred embodiment, the color meter further includes a combination of a variable resistor and a filter for determination of exposure time.
摘要:
An object of the present invention is to provide a luminescence enhancer by which a luminescence such as chemiluminescence can be enhanced with higher sensitivity and the luminescence can be continued over a prolonged period of time. That is, the present invention provides a luminescence enhancer containing a heteropolymer as an active ingredient, a method for measuring the luminescence using a luminescent substrate and said luminescence enhancer, and a method for analyzing a substance to be measured in a specimen wherein the specimen, an antigen and/or antibody corresponding to a substance to be measured, an antigen and/or antibody labeled-form with an activator and a luminescent substrate are reacted in the presence of said luminescence enhancer to measure the luminescence.
摘要:
Disclosed are a color developing method utilizing the reaction of an indolyl derivative with an enzyme in the presence of a specific free radical compound and/or a specific chelate compound, and an enzyme immunoassay using the color developing method.