Device for chromatographic quantitative measurement

Abstract

A device for chromatographic quantitative measurement, characterized in that a beam applied to a chromatographic specimen (8) from a light source (201) is formed so as to have an ellipse shape by optical means such as a cylindrical lens (205), and in that the change of absorbance due to the elution of a labeled reagent is detected by the beam being applied to a position between a labeled reagent holding portion (82) and a detecting portion (83) and the measurement is automatically started a predetermined time after the above detection. The device for chromatographic quantitative measurement allows the reduction of variation in coloring due to a beam having an ellipse shape achieved with optical means, which leads to an improved accuracy in quantitative analysis, and the improvement in ease of operation.

Description

[0001] The present invention is a divisional application of the No. 200410032373.3 patent application with the filing date of September 25, 2001, entitled "Chromatograph Quantitative Measuring Device". technical field [0002] The present invention relates to a chromatographic quantitative measurement device for measuring immunochromatographic test strips, etc., and particularly relates to a chromatographic quantitative measurement device capable of improving the quantitative performance of the device. Background technique [0003] Next, an absorptiometer, which is a conventional chromatography quantitative measurement device, will be described. Figure 25 (a) is a schematic configuration diagram of a conventional reflection absorption photometer, Figure 25 (b) is a structural diagram of the chromatography test piece. [0004] exist Figure 25 In (a), the light beam 11 emitted from the lamp 1 enters the diffraction grating 3 via the reflection plate 2 . The wavelength of th...

AI Technical Summary

Problems solved by technology

In addition, in the quantitative analysis of immunochromatography, which measures the degree of coloration with a general-purpose spectrophotometer, there is no problem in the method of using a sealed box when the frequency of measurement is low, but in clinical examinations, etc., a large amount of quantitative analysis is required. When measuring, the cost of the airtight box and securing a storage place will become problems

On the other hand, when quantitative measurement is performed using the immunochromatography test strip alone without a sealed box, since the test strip is placed directly on the measuring table of the absorptiometer, the adhesion of the sample to the measurement device will become a problem.

Furthermore, in order to accurately irradiate the light beam to the base part and the detection part, there is a problem that the test piece must be mounted on the measuring device with high precision.

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