GB1358594A - Pipetting apparatus and method of pipetting - Google Patents

Pipetting apparatus and method of pipetting

Info

Publication number
GB1358594A
GB1358594A GB2967571A GB2967571A GB1358594A GB 1358594 A GB1358594 A GB 1358594A GB 2967571 A GB2967571 A GB 2967571A GB 2967571 A GB2967571 A GB 2967571A GB 1358594 A GB1358594 A GB 1358594A
Authority
GB
United Kingdom
Prior art keywords
pipette
fluid
pressure
lines
suction
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
GB2967571A
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.)
Bio Science Laboratories
Original Assignee
Bio Science Laboratories
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 Bio Science Laboratories filed Critical Bio Science Laboratories
Publication of GB1358594A publication Critical patent/GB1358594A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/02—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped using both positively and negatively pressurised fluid medium, e.g. alternating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/18—Devices for withdrawing samples in the liquid or fluent state with provision for splitting samples into portions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
    • G01N2035/1025—Fluid level sensing

Abstract

1358594 Raising liquids by vacuum BIOSCIENCE LABORATORIES 24 June 1971 29675/71 Heading F1R [Also in Division F2] In pipetting apparatus which comprises a pipette 35 sealed by a gasket 200, and lines 50, 60 through which continuous suction and pressure are respectively established, a valve is provided at the intersection of the lines 50, 60 and pipette 35 so that the latter may be selectively placed in communication with one of the lines 50, 60 or sealed from both. As shown in Fig.2 the suction and pressure are created by respective motor driven pumps 82, 84 through sections controlled by respective regulating screw clamps 91, and flow constrictions 90. The valve 100 comprises pivotal arms 128, 129 each normally spring- biased to compress a common tube wall 126, the arm 128 being raised as shown (by depression of a button (138), Fig. 5, (not shown), on one end of a lever (136)to allow fluid to be drawn by suction into the pipette 35, after which arm 128 is lowered and the arm 129 is similarly raised to allow pressure to discharge the fluid. In a second embodiment, Fig.3, the lines 50, 60 are connected respectively to the suction and pressure sides of a pump 88 and the pressure is regulated by a valve controlled surge chamber 92. The valve 100 in this embodiment comprises a body 160 which is rotatable relative to a base 150 so that a stud (155) thereof is placed either in communication with the line 50 or 60, or sealed from both as shown. Fluid may be drawn into both the pipette 35 and line 50 which is then closed, to divide the fluid into two portions, that in line 50 being drawn into a trap 85 and acting as a pre-wash fluid. The line 50 preferably includes a transparent portion or view port so that an operator knows when charging of a pipette is complete. The pipette 35 is replaceable and may be held in place by a friction member Fig. 4, (not shown) or by being provided with a shoulder engagably by a lever mechanism (300) Fig. 6, (not shown).
GB2967571A 1970-07-23 1971-06-24 Pipetting apparatus and method of pipetting Expired GB1358594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5772070A 1970-07-23 1970-07-23

Publications (1)

Publication Number Publication Date
GB1358594A true GB1358594A (en) 1974-07-03

Family

ID=22012338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2967571A Expired GB1358594A (en) 1970-07-23 1971-06-24 Pipetting apparatus and method of pipetting

Country Status (6)

Country Link
AU (1) AU451101B2 (en)
BE (1) BE769366A (en)
DE (1) DE2132066A1 (en)
FR (1) FR2144117A5 (en)
GB (1) GB1358594A (en)
NL (1) NL7109101A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454547A1 (en) * 1979-04-20 1980-11-14 Seiler Alfred LIQUID TRANSFER DEVICE CAPABLE OF WORKING AS A STRAIN PUMP OR A SUCTION PUMP USING AN INTERMEDIATE FLUID
CN109937365A (en) * 2016-11-15 2019-06-25 天康瑞士股份公司 Liquid relief method and liquid-transfering device
CN113171809A (en) * 2021-05-12 2021-07-27 臻叶生物科技有限公司 Layered liquid transfer device and use method thereof
CN115135414A (en) * 2019-10-25 2022-09-30 梅特勒-托利多瑞宁有限责任公司 Electric external piston type pipettor assembly
CN115200944A (en) * 2022-07-14 2022-10-18 青海省地质环境调查院 Based on intelligent sampling device of mineral water base construction hydrogeology
CN115327152A (en) * 2022-10-14 2022-11-11 深圳市帝迈生物技术有限公司 Sample analyzer and sample analysis method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014588A1 (en) * 1990-05-07 1991-11-14 Hirschmann Glasgeraete PIPETTING DEVICE
CN110292962B (en) * 2019-07-12 2023-04-07 圣湘生物科技股份有限公司 Liquid suction control method, device, equipment, system and storage medium

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454547A1 (en) * 1979-04-20 1980-11-14 Seiler Alfred LIQUID TRANSFER DEVICE CAPABLE OF WORKING AS A STRAIN PUMP OR A SUCTION PUMP USING AN INTERMEDIATE FLUID
CN109937365A (en) * 2016-11-15 2019-06-25 天康瑞士股份公司 Liquid relief method and liquid-transfering device
CN109937365B (en) * 2016-11-15 2023-11-21 帝肯贸易股份公司 Pipetting method and pipetting device
CN115135414A (en) * 2019-10-25 2022-09-30 梅特勒-托利多瑞宁有限责任公司 Electric external piston type pipettor assembly
CN113171809A (en) * 2021-05-12 2021-07-27 臻叶生物科技有限公司 Layered liquid transfer device and use method thereof
CN113171809B (en) * 2021-05-12 2022-05-24 臻叶生物科技有限公司 Layered liquid transfer device and use method thereof
CN115200944A (en) * 2022-07-14 2022-10-18 青海省地质环境调查院 Based on intelligent sampling device of mineral water base construction hydrogeology
CN115200944B (en) * 2022-07-14 2023-07-18 青海省地质环境调查院 Hydrogeology intelligent sampling device based on mineral water base construction
CN115327152A (en) * 2022-10-14 2022-11-11 深圳市帝迈生物技术有限公司 Sample analyzer and sample analysis method
CN115327152B (en) * 2022-10-14 2023-02-07 深圳市帝迈生物技术有限公司 Sample analyzer and sample analysis method

Also Published As

Publication number Publication date
NL7109101A (en) 1973-01-03
FR2144117A5 (en) 1973-02-09
BE769366A (en) 1972-01-03
DE2132066A1 (en) 1973-01-18
AU2965771A (en) 1972-12-07
AU451101B2 (en) 1974-07-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees