DE2224385A1 - Vorrichtung zum Verdünnen von flüssigen Proben - Google Patents

Vorrichtung zum Verdünnen von flüssigen Proben

Info

Publication number
DE2224385A1
DE2224385A1 DE19722224385 DE2224385A DE2224385A1 DE 2224385 A1 DE2224385 A1 DE 2224385A1 DE 19722224385 DE19722224385 DE 19722224385 DE 2224385 A DE2224385 A DE 2224385A DE 2224385 A1 DE2224385 A1 DE 2224385A1
Authority
DE
Germany
Prior art keywords
piston
squeezing
plunger
pumps
liquid
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
DE19722224385
Other languages
German (de)
English (en)
Inventor
Gerard Fontenay-aux-Roses; Rousselet Andre Eaubonne; Lartigue (Frankreich)
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of DE2224385A1 publication Critical patent/DE2224385A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/001—Control of flow ratio with discontinuous action
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G01N2001/382—Diluting, dispersing or mixing samples using pistons of different sections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Sampling And Sample Adjustment (AREA)
DE19722224385 1971-05-18 1972-05-18 Vorrichtung zum Verdünnen von flüssigen Proben Pending DE2224385A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7117955A FR2137308B1 (en:Method) 1971-05-18 1971-05-18

Publications (1)

Publication Number Publication Date
DE2224385A1 true DE2224385A1 (de) 1972-11-30

Family

ID=9077236

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722224385 Pending DE2224385A1 (de) 1971-05-18 1972-05-18 Vorrichtung zum Verdünnen von flüssigen Proben

Country Status (7)

Country Link
US (1) US3810720A (en:Method)
BE (1) BE783569A (en:Method)
CH (1) CH533463A (en:Method)
DE (1) DE2224385A1 (en:Method)
FR (1) FR2137308B1 (en:Method)
IT (1) IT955247B (en:Method)
NL (1) NL7206198A (en:Method)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963148A (en) * 1974-01-10 1976-06-15 Coulter Electronics, Inc. Apparatus for drawing, measuring and discharging proportional amounts of fluid
US3955930A (en) * 1975-04-07 1976-05-11 Justin Joel Shapiro Automatic dilutor having coupled diluent and reagent plungers
GB1558931A (en) * 1976-06-03 1980-01-09 Brand Fa Rudolf Diluting and pipetting apparatus
US4269327A (en) * 1978-05-24 1981-05-26 Welch Henry H Device for carrying out high precision dilutions and dosages of liquids, particularly biological liquids
US4976546A (en) * 1989-05-12 1990-12-11 Beattie Lewis J Two component fluid mixing and dispensing system
FR2815719B1 (fr) * 2000-10-24 2003-01-17 Junior Instruments Dispositif de pipetage automatique avec rincage
FR2836400B1 (fr) * 2002-02-25 2004-07-09 Junior Instruments Dispositif de pipetage automatique de precision

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL50293C (en:Method) * 1936-12-21 1941-05-15
US2815149A (en) * 1954-07-20 1957-12-03 Avery Hardoll Ltd Apparatus for dispensing liquids
US2922379A (en) * 1957-06-06 1960-01-26 Eugene L Schultz Heart action multi-line pump constructions
US3144831A (en) * 1961-07-13 1964-08-18 Beckman Instruments Inc Fluid gradient engine
US3230887A (en) * 1962-10-29 1966-01-25 Beckman Instruments Inc Even flow apparatus and method for fluid gradient engines and the like
US3359910A (en) * 1965-06-10 1967-12-26 Little Inc A Apparatus for programming fluid flow
FR1475725A (fr) * 1966-01-07 1967-04-07 Coultronics France S A Appareil pour la préparation de mélanges liquides
US3484207A (en) * 1967-05-22 1969-12-16 American Optical Corp Liquid sampling-pipetting method and apparatus
US3401839A (en) * 1967-05-29 1968-09-17 Honeywell Inc Liquid sampling and dispensing device
US3575161A (en) * 1968-03-07 1971-04-20 Seymour B London Valve for biological systems
US3572130A (en) * 1969-08-27 1971-03-23 Nat Instr Lab Inc Liquid sample pick-up and dispensing apparatus

Also Published As

Publication number Publication date
IT955247B (it) 1973-09-29
US3810720A (en) 1974-05-14
NL7206198A (en:Method) 1972-11-21
BE783569A (fr) 1972-11-17
FR2137308A1 (en:Method) 1972-12-29
CH533463A (de) 1973-02-15
FR2137308B1 (en:Method) 1975-01-17

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