GB1348559A - Measuring chamber for measuring certain properties of particles suspended in liquid - Google Patents

Measuring chamber for measuring certain properties of particles suspended in liquid

Info

Publication number
GB1348559A
GB1348559A GB2507671*A GB2507671A GB1348559A GB 1348559 A GB1348559 A GB 1348559A GB 2507671 A GB2507671 A GB 2507671A GB 1348559 A GB1348559 A GB 1348559A
Authority
GB
United Kingdom
Prior art keywords
measuring
aperture
liquid
certain properties
particles suspended
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.)
Expired
Application number
GB2507671*A
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.)
Max Planck Gesellschaft zur Foerderung der Wissenschaften eV
Original Assignee
Max Planck Gesellschaft zur Foerderung der Wissenschaften eV
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
Priority claimed from DE19702013799 external-priority patent/DE2013799C3/en
Application filed by Max Planck Gesellschaft zur Foerderung der Wissenschaften eV filed Critical Max Planck Gesellschaft zur Foerderung der Wissenschaften eV
Publication of GB1348559A publication Critical patent/GB1348559A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1404—Handling flow, e.g. hydrodynamic focusing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/13—Details pertaining to apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N2015/1019—Associating Coulter-counter and optical flow cytometer [OFC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1404—Handling flow, e.g. hydrodynamic focusing
    • G01N2015/1413—Hydrodynamic focussing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1348559 Measurement MAX-PLANCK-GES ZUR FORDERUNG DER WISSENSCHAFTEN 19 April 1971 [23 March 1970] 25076/71 Heading B1X [Also in Divisions Gl and G2] While particles entrained in a liquid medium are flowing through a relatively small aperture the flow path is concentrated, e.g. by a reduction in pressure as it passes into the aperture. Optical properties of the particles may be measured by microscopic examination of their radiant absorption characteristics while voltage differences on opposite sides of the aperture may be used to measure their size distribution.
GB2507671*A 1970-03-23 1971-04-19 Measuring chamber for measuring certain properties of particles suspended in liquid Expired GB1348559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702013799 DE2013799C3 (en) 1970-03-23 Arrangement for hydrodynamic focusing of a flow of a particle suspension into the measuring opening of a particle analyzer

Publications (1)

Publication Number Publication Date
GB1348559A true GB1348559A (en) 1974-03-20

Family

ID=5765963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2507671*A Expired GB1348559A (en) 1970-03-23 1971-04-19 Measuring chamber for measuring certain properties of particles suspended in liquid

Country Status (11)

Country Link
JP (1) JPS5227554B1 (en)
AT (1) AT304756B (en)
BE (1) BE764638A (en)
CA (1) CA930975A (en)
CH (1) CH524820A (en)
FR (1) FR2085053A5 (en)
GB (1) GB1348559A (en)
IL (1) IL36471A (en)
LU (1) LU62816A1 (en)
NL (1) NL7103894A (en)
SE (1) SE381934B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167880A (en) * 1984-11-29 1986-06-04 Int Remote Imaging Systems Inc Planar laminar sample flow through microscopic instrument

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543310C2 (en) * 1975-09-27 1982-04-29 Gesellschaft für Strahlen- und Umweltforschung mbH, 8000 München Device for counting and classifying particles suspended in a liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167880A (en) * 1984-11-29 1986-06-04 Int Remote Imaging Systems Inc Planar laminar sample flow through microscopic instrument

Also Published As

Publication number Publication date
SE381934B (en) 1975-12-22
CA930975A (en) 1973-07-31
NL7103894A (en) 1971-09-27
AT304756B (en) 1973-01-25
JPS5227554B1 (en) 1977-07-21
BE764638A (en) 1971-08-16
DE2013799A1 (en) 1971-10-07
DE2013799B2 (en) 1973-08-23
IL36471A (en) 1974-01-14
IL36471A0 (en) 1971-05-26
CH524820A (en) 1972-06-30
LU62816A1 (en) 1971-08-24
FR2085053A5 (en) 1971-12-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee