JPS57168144A - Colorimetric measuring method - Google Patents

Colorimetric measuring method

Info

Publication number
JPS57168144A
JPS57168144A JP4829782A JP4829782A JPS57168144A JP S57168144 A JPS57168144 A JP S57168144A JP 4829782 A JP4829782 A JP 4829782A JP 4829782 A JP4829782 A JP 4829782A JP S57168144 A JPS57168144 A JP S57168144A
Authority
JP
Japan
Prior art keywords
specimen
measured
reaction time
colorimetric
measurement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4829782A
Other languages
Japanese (ja)
Inventor
Tadao Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP4829782A priority Critical patent/JPS57168144A/en
Publication of JPS57168144A publication Critical patent/JPS57168144A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/272—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration for following a reaction, e.g. for determining photometrically a reaction rate (photometric cinetic analysis)

Abstract

PURPOSE:To make it possible to perform colorimetric measurement exactly in a short time by meausring twice colorimetrically by employing a specimen to be measured in which a relationship of proportion in the reaction time vs. absorbance characteristic for the concentration to be measured exists at least for a part of the reaction time. CONSTITUTION:A colorimetric measuring device is provided with a light source 1. The light beams from this light source 1 pass through a pin hole 3 and are made parallel by means of a relay lens 4 and directed at the measurement cell 6. The measurement cell 6 contains a liquid specimen to be measured or a reference liquid. The liquid specimen used is a specimen in which relationship of proportion in the reaction time vs. absorbance characteristic for the concenttstion to be measured exists at least for a part of the reaction time, and colorimetric measurement is conducted twice at the time X1 and X2 to make more exact colorimetric measurement in a short time from starting of reaction in the specimen.
JP4829782A 1982-03-26 1982-03-26 Colorimetric measuring method Pending JPS57168144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4829782A JPS57168144A (en) 1982-03-26 1982-03-26 Colorimetric measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4829782A JPS57168144A (en) 1982-03-26 1982-03-26 Colorimetric measuring method

Publications (1)

Publication Number Publication Date
JPS57168144A true JPS57168144A (en) 1982-10-16

Family

ID=12799500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4829782A Pending JPS57168144A (en) 1982-03-26 1982-03-26 Colorimetric measuring method

Country Status (1)

Country Link
JP (1) JPS57168144A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010116237A1 (en) * 2009-04-08 2010-10-14 Amit Bhatnagar Apparatus for determining optical density of liquid sample

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010116237A1 (en) * 2009-04-08 2010-10-14 Amit Bhatnagar Apparatus for determining optical density of liquid sample

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