JPS5788349A - Biochemical analysing apparatus - Google Patents

Biochemical analysing apparatus

Info

Publication number
JPS5788349A
JPS5788349A JP16430580A JP16430580A JPS5788349A JP S5788349 A JPS5788349 A JP S5788349A JP 16430580 A JP16430580 A JP 16430580A JP 16430580 A JP16430580 A JP 16430580A JP S5788349 A JPS5788349 A JP S5788349A
Authority
JP
Japan
Prior art keywords
absorbance
measurement
converter
sent
circuit
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.)
Granted
Application number
JP16430580A
Other languages
Japanese (ja)
Other versions
JPS6349179B2 (en
Inventor
Kazutoshi Yamagishi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16430580A priority Critical patent/JPS5788349A/en
Publication of JPS5788349A publication Critical patent/JPS5788349A/en
Publication of JPS6349179B2 publication Critical patent/JPS6349179B2/ja
Granted 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)

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

PURPOSE:To improve the resolution by the rate method without increasing the digit number of an A/D converter, by using the difference of absorbance at an optional time during measurement and that of during the measurement, as the data. CONSTITUTION:Either the end point method or the rate method is selected by switching a switch SW1 before the beginning of the measurement. On occasion of the end point method, an absorbance detection output signal A is inputted to an A/D converter 2 through a switch 1 and is sent to an operational circuit 3 to carry out analytical treatment of the absorbance at a point of time of reaction end. On occastion of the rate method, the signal A during measurement is sent to the first sample holding circuit 9 and the second sample holding circuit 11 alternately and its output is given to the input of a differential amplifier 15. Then, the difference signal from the absorbance during measurement is sent to the A/D converter 2 and the analytical treatment of the variation ratio of the absorbance is carried out in the circuit 3.
JP16430580A 1980-11-21 1980-11-21 Biochemical analysing apparatus Granted JPS5788349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16430580A JPS5788349A (en) 1980-11-21 1980-11-21 Biochemical analysing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16430580A JPS5788349A (en) 1980-11-21 1980-11-21 Biochemical analysing apparatus

Publications (2)

Publication Number Publication Date
JPS5788349A true JPS5788349A (en) 1982-06-02
JPS6349179B2 JPS6349179B2 (en) 1988-10-03

Family

ID=15790593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16430580A Granted JPS5788349A (en) 1980-11-21 1980-11-21 Biochemical analysing apparatus

Country Status (1)

Country Link
JP (1) JPS5788349A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081376A (en) * 1973-11-19 1975-07-02
JPS51100793A (en) * 1975-03-03 1976-09-06 Nippon Kogaku Kk Kagakuhannosokudosokuteisochi
JPS53133480A (en) * 1977-04-27 1978-11-21 Jeol Ltd Apparatus for chemical analysis
JPS5441184A (en) * 1977-09-07 1979-04-02 Hitachi Ltd Two wavelength spectrophotometer
JPS55144549A (en) * 1979-04-28 1980-11-11 Jeol Ltd Detecting circuit for automatic chemical analyzer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081376A (en) * 1973-11-19 1975-07-02
JPS51100793A (en) * 1975-03-03 1976-09-06 Nippon Kogaku Kk Kagakuhannosokudosokuteisochi
JPS53133480A (en) * 1977-04-27 1978-11-21 Jeol Ltd Apparatus for chemical analysis
JPS5441184A (en) * 1977-09-07 1979-04-02 Hitachi Ltd Two wavelength spectrophotometer
JPS55144549A (en) * 1979-04-28 1980-11-11 Jeol Ltd Detecting circuit for automatic chemical analyzer

Also Published As

Publication number Publication date
JPS6349179B2 (en) 1988-10-03

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