JPS5516258A - Optical system of nephelometer - Google Patents

Optical system of nephelometer

Info

Publication number
JPS5516258A
JPS5516258A JP8910978A JP8910978A JPS5516258A JP S5516258 A JPS5516258 A JP S5516258A JP 8910978 A JP8910978 A JP 8910978A JP 8910978 A JP8910978 A JP 8910978A JP S5516258 A JPS5516258 A JP S5516258A
Authority
JP
Japan
Prior art keywords
photo
sample cell
light
scattered light
sample
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
JP8910978A
Other languages
Japanese (ja)
Inventor
Makoto Watanabe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8910978A priority Critical patent/JPS5516258A/en
Publication of JPS5516258A publication Critical patent/JPS5516258A/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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To improve the accuracy of the measurement of scattered light by constitution that is comparatively small and inexpensive, by installing detecting elements for detecting only the scattered light from a central portion of a sample at an image formation location of the center of a sample cell by means of a condensing element. CONSTITUTION:The bright light of a luminous diode 1 near the point source of light is condensed by means of a condensing lens 2, and condensation projected to a central portion of a sample cell 5. The effective dimensions of the sample cell 5 are decided to be 4mm wide, 6mm high and 8mm long, but scattered light is not generated from a side-wall of the cell 5 because incident light flux passes without contacting with the side-wall of the sample cell 5. The condensing lenses 3, 4 of a photo- detecting system are arranged in the directions that form the angles of 90 deg. and 35 deg. to incident light, and photo-detectors 6, 7 are installed at the equimultiple image formation locations of a central position of the sample cell 5. If an effective detecting surface of a photo-diode, a photo-detector, is approximate 3mmphi, only scattered light within a limited range of a central portion of sample liquid is detected, thus improving the accuracy of measurement.
JP8910978A 1978-07-20 1978-07-20 Optical system of nephelometer Pending JPS5516258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8910978A JPS5516258A (en) 1978-07-20 1978-07-20 Optical system of nephelometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8910978A JPS5516258A (en) 1978-07-20 1978-07-20 Optical system of nephelometer

Publications (1)

Publication Number Publication Date
JPS5516258A true JPS5516258A (en) 1980-02-04

Family

ID=13961715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8910978A Pending JPS5516258A (en) 1978-07-20 1978-07-20 Optical system of nephelometer

Country Status (1)

Country Link
JP (1) JPS5516258A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8355132B2 (en) 2007-04-06 2013-01-15 Qiagen Gaithersburg, Inc. Sample adequacy measurement system having a plurality of sample tubes and using turbidity light scattering techniques
US8877507B2 (en) 2007-04-06 2014-11-04 Qiagen Gaithersburg, Inc. Ensuring sample adequacy using turbidity light scattering techniques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8355132B2 (en) 2007-04-06 2013-01-15 Qiagen Gaithersburg, Inc. Sample adequacy measurement system having a plurality of sample tubes and using turbidity light scattering techniques
US8877507B2 (en) 2007-04-06 2014-11-04 Qiagen Gaithersburg, Inc. Ensuring sample adequacy using turbidity light scattering techniques

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