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EP1353752A1 - Dispositif et proc d pour transf rer des echantillons fluides - Google Patents

Dispositif et proc d pour transf rer des echantillons fluides

Info

Publication number
EP1353752A1
EP1353752A1 EP02779097A EP02779097A EP1353752A1 EP 1353752 A1 EP1353752 A1 EP 1353752A1 EP 02779097 A EP02779097 A EP 02779097A EP 02779097 A EP02779097 A EP 02779097A EP 1353752 A1 EP1353752 A1 EP 1353752A1
Authority
EP
European Patent Office
Prior art keywords
transfer device
plate
containers
chambers
individual
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.)
Withdrawn
Application number
EP02779097A
Other languages
German (de)
English (en)
Inventor
Nikolaus Ingenhoven
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.)
Tecan Trading AG
Original Assignee
Tecan Trading 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 Tecan Trading AG filed Critical Tecan Trading AG
Publication of EP1353752A1 publication Critical patent/EP1353752A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5085—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates
    • B01L3/50853—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates with covers or lids
    • 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
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5025—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures for parallel transport of multiple samples
    • 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
    • G01N1/34—Purifying; Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00277—Apparatus
    • B01J2219/00279—Features relating to reactor vessels
    • B01J2219/00306—Reactor vessels in a multiple arrangement
    • B01J2219/00313—Reactor vessels in a multiple arrangement the reactor vessels being formed by arrays of wells in blocks
    • B01J2219/00315—Microtiter plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00277—Apparatus
    • B01J2219/00351—Means for dispensing and evacuation of reagents
    • B01J2219/00414—Means for dispensing and evacuation of reagents using suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00277—Apparatus
    • B01J2219/00351—Means for dispensing and evacuation of reagents
    • B01J2219/00423—Means for dispensing and evacuation of reagents using filtration, e.g. through porous frits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00583—Features relative to the processes being carried out
    • B01J2219/00585—Parallel processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00583—Features relative to the processes being carried out
    • B01J2219/00596—Solid-phase processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00583—Features relative to the processes being carried out
    • B01J2219/00599—Solution-phase processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00718—Type of compounds synthesised
    • B01J2219/0072—Organic compounds
    • B01J2219/00722—Nucleotides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00718—Type of compounds synthesised
    • B01J2219/0072—Organic compounds
    • B01J2219/00725—Peptides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
    • B01J2219/00718—Type of compounds synthesised
    • B01J2219/0072—Organic compounds
    • B01J2219/00731—Saccharides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
    • Y10T436/2575—Volumetric liquid transfer

Definitions

  • the invention relates - according to the preamble of independent claim 1 or according to the preamble of independent claim 22 - to a transfer device or a corresponding method for taking fluid samples from containers and for introducing these fluid samples into chambers arranged under these containers, the Device includes an individual chamber for each of the containers.
  • This device can e.g. can be used to transfer liquids from wells of SPE plates for solid phase extraction and elution of organic or inorganic particles in wells from microplates arranged underneath.
  • proteomics In laboratories that deal with molecular biological / biochemical investigations, the areas “genomics” or “proteomics” are common terms for the processing and investigation of genetic substances, such as DNA (deoxyribonucleic acid), RNA (ribonucleic acid) or their parts in the form of oli - gonucleotides or of proteins (proteins, for example in the form of antigens or antibodies or parts thereof in the form of polypeptides).
  • DNA deoxyribonucleic acid
  • RNA ribonucleic acid
  • proteins proteins
  • the area of proteomics in particular is becoming increasingly important, because not only the genome (hereditary mass) but above all the available protein content (proteome) determine the appearance and condition of a biological organism.
  • SPE plates solid phase extraction plates
  • a specifically activated filter a corresponding grid or a separation column in the form of a packed capillary is placed in or at least near the bottom outlet opening of a potty or "well" of a microplate (cf. Fig. 1: SPE plate from the prior art).
  • a sample is pipetted into a well and, by using suction forces (by applying a vacuum) or gravity (by centrifugation), it is forced to leave the microplate through the filter or the grid via the bottom outlet opening.
  • the target molecules thus bind to the activated material, for example the separation column or packing.
  • the target molecules or those so separated from the sample can be removed organic or inorganic particles with the help of an eluent (a suitable solvent), ie separated from the packing, the filter or the grid.
  • the eluted particles are then transferred into a second microplate or onto the surface of a support by means of vacuum or centrifugation.
  • the flow resistance for the inflowing air or the pressure fluid in the wells that have just been emptied is considerably lower than the flow resistance for the liquids in the wells that have not yet been emptied; this leads to an undesirable and uncontrollable pressure increase in the vacuum or to a corresponding pressure drop in the overpressure system.
  • the emptying of all wells is therefore usually achieved by suddenly, abruptly applying a large vacuum, which is done by suddenly opening a valve leading to a pre-evacuated vacuum tank.
  • this often leads to splashing or even foaming washing waste or eluate, which can lead to undesired material transfers to neighboring wells (contamination or cross-contamination) or to the loss of a sample, several or all samples from a batch.
  • up to 96, 384 or 1536 samples per batch are lost.
  • the object of the invention is to propose a transfer device for fluid samples, ie a device for suctioning and / or squeezing fluid samples from containers, which allows the disadvantages of the devices described as prior art to be substantially eliminated.
  • this object is achieved with a device according to the features of independent claim 1.
  • this object is achieved by using a transfer device according to the features of claim 22. Additional features according to the invention each result from the dependent claims.
  • Microplates of practically any construction and size can be used. Such microplates are also known as microtiter plates "(trademark of Beckman Coulter Inc., 4300 N. Harbor Boulevard., P.O. Box 3100, Fullerton,
  • CA 92834, USA can e.g. 96, 384 or 1536 wells.
  • the liquid in the SPE plates can also be expelled or pressed out by using a pressure fluid, such as air or inert gas, by means of excess pressure.
  • a pressure fluid such as air or inert gas
  • Figure 1 is a partial vertical section through a device for emptying an SPE plate from the prior art.
  • FIG. 2 shows a partial vertical section through an inventive device according to a first embodiment
  • 3 shows a horizontal section through the device according to the invention in accordance with the first or a second embodiment at the level of the vacuum line;
  • FIG. 5 shows a partial vertical section through a device according to the invention in accordance with a third embodiment
  • FIG. 7 shows a partial vertical section through a device according to the invention in accordance with a fourth embodiment
  • FIG. 8 shows a horizontal section through the device according to the invention according to the fourth embodiment at the level of the vacuum line;
  • Fig. 10 is a partial vertical section through an inventive device according to a sixth embodiment.
  • environmental fluids are gases, such as nitrogen and other inert gases, as well as air and other gas mixtures, but also liquids or liquid gas mixtures, which do not enter the chamber via the intended path, ie via the lower openings 22 of the SPE plate 3 " 5.
  • a vacuum line or vacuum line 9 leading to the same and which can be connected to a suction pump (not shown) is provided for evacuating the chamber 5.
  • the separating agents 23 used for example filters
  • the separating agents 23 used often have a different flow resistance for the detergent or the eluate, so that in most cases some wells are emptied faster than others.
  • the flow resistance for the flowing air or the flowing inert gas in the wells that have just been emptied is considerably lower than the flow resistance for the liquids in the wells that have not yet been emptied; this leads to an undesirable and uncontrollable increase in pressure in the vacuum of chamber 5.
  • emptying all wells through sudden, abrupt application of large negative pressure can lead to splashing or even foaming washing waste or eluate and thus to undesired material transfers into neighboring wells or lead to the loss of one sample, several or all samples of a batch.
  • the fluid samples 2 are thus sucked off into a common chamber 5, ie there is also a common collecting space 12 which is only insufficiently compartmentalized by the collecting pan or its subdivisions.
  • the device 1 is characterized in that it has an individual chamber 5 'for each of the containers 3, 3'. and that the vacuum line 9 is connected to the chamber or the chambers 5 'via a restriction opening 10 - restricting the flow for fluids sucked out of the chamber or the chambers 5' and entering the vacuum line 9.
  • This fluid to be aspirated via the restriction openings 10 is used in the case of using the device for aspirating liquids 2 'from wells 3' of SPE plates 3 "for the solid phase extraction and elution of organic or inorganic particles are usually air or an inert gas.
  • the pump (not shown) connected to the vacuum line 9 generates a pressure in this line which is below a certain limit value which is dependent on the geometry of the restriction opening and on the physical properties of the fluid to be extracted.
  • the flow of the fluid through the restriction openings is essentially limited by their geometry, so that the setting of the pressure and its maintenance is not critical per se.
  • the restriction openings 10 which limit the flow for fluids sucked out of the individual chambers 5 'and enter the vacuum line 9 preferably also each comprise an individually controllable valve 11 for opening and closing the restriction openings.
  • each container 3 can be emptied into the collecting space 12 not only individually, but also at a specific point in time and independently of the other containers.
  • This valve can comprise a tube (for example made of inert plastic), the inside cross section of which corresponds to the inside cross section of a restriction opening 10.
  • This inner cross section can preferably be piezo-controlled reduced, enlarged or closed.
  • the first embodiment of this device according to the invention is characterized in that the enclosing means 4 comprise at least one first plate 14 in which the restriction openings 10 are arranged.
  • This first plate 14 is designed such that it only partially encompasses the individual chambers 5 '.
  • This embodiment also includes a second plate 15, which is arranged at least partially parallel to the first plate 14.
  • the first plate 14 preferably includes the receiving openings 6 with first edge regions 7 and second edge regions 7 ', the first edge regions 7 being arranged in the first plate 14 and the second edge regions 7' in the second plate 15.
  • the first and second edge regions 7, 7 ' together form a contour which essentially corresponds to the outer surface of the containers 3' to be used.
  • the wells 3' therefore act on these first and second edge regions 7,7 'and thus seal the individual chambers 5' against the ingress of environmental fluids.
  • the vacuum line 9 can be recessed in the first or second plate 14, 15 so that the first or the second plate have a substantially flat surface directed against the vacuum line 14. Both plates 14, 15 are connected to one another in a sealing manner, so that no leaks in the vacuum line are present.
  • a third plate 16 forms the individual collecting spaces 12 and for this purpose can be provided with a special inert coating (not shown) or made of such a material.
  • the third plate 16 adjoins the second plate 15 in the area of the enclosing means 4 and the intermediate walls 24.
  • Figure 3 shows a horizontal section through the inventive device according to the first or a second embodiment at the level of the vacuum line.
  • the vacuum line is Grid-like or mesh-like, runs in a ring around the edge regions 7 and connects these ring-shaped regions with straight channels with a large cross-section.
  • the restriction openings 10 are recognizable as small bores in the area of the annular vacuum lines and penetrate the first plate 14 essentially vertically.
  • Figure 4 shows a partial vertical section through an inventive device according to the second embodiment.
  • the first plate 14 forms all essentially vertical walls of the individual chambers 5 'and collecting spaces 12.
  • the third plate 16 forms an essentially flat floor on which preferably targets 21 (for example for MALDI-MS) ) can be placed in appropriate recesses or straight on the flat surface.
  • targets 21 for example for MALDI-MS
  • the smallest sample quantities in the nanoliter or picoliter range can be applied directly to these targets.
  • Figure 6 shows a horizontal section through the inventive device according to the third embodiment at the level of the vacuum line.
  • the restriction openings 10, which connect the individual chambers 5 ′ to the vacuum line 9, are clearly visible.
  • These restriction openings 10 can also include an individually controllable valve 11 for closing the restriction openings.
  • FIG. 7 shows a partial vertical section through a device according to the invention in accordance with a fourth embodiment.
  • This embodiment comprises first, second and third plates 14, 15, 16.
  • the first plate 14 is designed as a simple, essentially flat plate and comprises edge regions 7 and restriction openings 10.
  • the second plate 15 is preferably produced as an injection-molded or etched, one-piece component and includes the vacuum line 9.
  • the second plate 15 has conical depressions 25, which are preferably not acted upon by the containers.
  • the sealing action on the outer surface of the containers thus only takes place in the areas 7 of the first plate 14.
  • the third plate 16 comprises all walls 4, 24 of the individual chambers 5 'and collecting spaces 12 and optional emptying openings 13.
  • the second and third plates 15, 16 seal against the first plate 14.
  • FIG 8 shows a horizontal section through the inventive device according to the fourth embodiment at the level of the vacuum line.
  • the vacuum line 9 is designed as a single, contiguous cavity, which - apart from cone-like rings 26, which form the conical recesses 25 and an outer end flange which extends approximately along the edge of the first plate 14 27 - extends practically over the entire first plate 14.
  • the restriction openings 10 made in the first plate connect the individual chambers 5 'in FIG third plate 16 with the cavity acting as vacuum line 9 in the second plate 15.
  • FIG. 9 shows a partial vertical section through a device according to the invention in accordance with a fifth embodiment, in which the chambers 5, 5 'are designed as 5 "wells of a microplate, in particular with 96, 384 or 1536 wells.
  • the transfer device 1 is for pressing Fluid samples 2 from containers 3, in particular for squeezing liquids 2 'from wells 3' of SPE plates 3 ", for solid phase extraction and elution of organic or inorganic particles.
  • This device like the ones shown above, has an individual chamber 5 ', 5 "for each of the containers 3, 3'.
  • this fifth embodiment has encompassing means 4, which for each container 3, 3 'have a single, comprise individually assigned restriction openings 10, which limit the flow for fluids to be introduced into the containers 3, 3.
  • the restriction openings 10 are arranged in a first plate 14 and distributed such that each container 3, in particular each well 3 ', which is designed as a multiplate SPE plate 3 "an individual chamber or an individual well 5" is assigned to an underlying multi-
  • the two microplates are arranged one above the other in the register and are spaced apart by a spacer 31.
  • a cover 28 is arranged on the first plate 14, which supplies the wells 3 "with a pressure fluid 30 (solid arrows) via an overpressure line 29.
  • This pressure fluid is preferably an inert gas, such as N 2 , but oil-free compressed air or others can also be used.
  • the gases in the lid 28 are sealed off from the first plate 14, so that the pressure fluid can only escape through the restriction openings 10.
  • the first plate 14 lies again sealing on the SPE plate 3 ".
  • the first plate 14 is preferably designed as a seal or made of soft, gas-impermeable material which, in the same way, seals the cover 28 and the SPE plate.
  • the pressure fluid reaches the wells 3 ′′ through the restriction openings 10, which limit the flow of the incoming fluid, owing to their specific dimensions, such that this flow essentially depends on the physical properties of the pressure fluid 30 used.
  • This pressure fluid 30, preferably is not soluble in the eluate, this displaces from the wells 3 "and from the separating means 23, so that the eluate can be collected in the wells 5" of the lower microplate.
  • a second plate 15 has enlarged receiving openings 6, which allow fluids displaced from the lower wells 5 "to escape unhindered (dashed arrows). By narrowing the openings in the lower microplate, the second plate 15 reduces the possibility of contamination of the neighboring wells.
  • FIG. 10 shows a partial vertical section through a device according to the invention in accordance with a sixth embodiment, in which the chambers 5, 5 'are designed as wells 5 "of a microplate, in particular with 96, 384 or 1536 wells.
  • the transfer device 1 is used for Squeezing fluid samples 2 from containers 3, in particular designed for squeezing liquids 2 'from wells 3' of SPE plates 3 "for the solid phase extraction and elution of organic or inorganic particles.
  • This device like the ones shown above, has an individual chamber 5 ′, 5 ′′ for each of the containers 3, 3 ′.
  • this sixth embodiment has encompassing means 4, which each have a single, individually assigned restriction opening 10, which limits the flow for fluids to be introduced into the containers 3, 3.
  • the cover 28 In contrast to the fifth embodiment shown in Fig. 9, in the sixth embodiment the cover 28, the pressure line 29 and the first plate 14 are Made in one piece so that the lid can be lowered onto any SPE plate and the eluates or washing liquids present in its wells 3 'and / or in its separating means 23 can be pressed out.
  • the SPE plate 3 ' can be attached to the cover 28, so that - if the cover 28 is held over the lower microplate with a robot arm or the like - the use of spacers 31 is dispensed with can be.
  • a further possibility is to equip the first plate 14 in the sixth embodiment with larger openings which do not impair the flow of the pressure fluid and to place this pressure cover on a device which is used to release the fluids from the chambers 5 ', 5 "per chamber 5'. , 5 "has an individual restriction opening 10.
  • A) The eluates or washing liquids are suctioned off from below, it being possible to arrange a plate (i.e. a surrounding means 4) with restriction openings below or above the SPE plate.
  • B) The eluates or washing liquids are pressed off from above, it being possible to arrange a plate (i.e. a surrounding means 4) with restriction openings below or above the SPE plate.
  • edge regions 7 comprise a sealing means 17.
  • improvement or combination options can result from the fact that the first plate 14 (see, for example, FIG. 7) and / or the second plate 15 (see, for example, FIG. 5) are designed as seals 18.
  • the device 1 can also comprise seals 18 which seal the first and / or second and / or third plate 14, 15, 16 connects to each other in a sealing manner (see, for example, Fig. 2-8).
  • the device 1 preferably comprises additional pressing means 19, which is designed to reinforce a sealing connection of the encasing means 4, 14, 15, 16.
  • the delivery with the capillaries can also be carried out directly on the surface of any target (e.g. for MALDI - MS, fluorometry etc.) and is not limited to a subsequent examination using time of flight mass spectrometry.
  • any target e.g. for MALDI - MS, fluorometry etc.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

L'invention concerne un dispositif de transfert (1) pour prélever des échantillons fluides (2) dans des récipients et pour introduire lesdits échantillons fluides (2) dans des chambres (5) situées en dessous de ces récipients. Ledit dispositif (19 comprend dans chaque cas une chambre individuelle (5', 5'') pour chaque récipient (3, 3'). Les dispositifs de transfert (1) selon l'invention se caractérisent en ce qu'ils comportent des éléments de confinement (4) qui comprennent pour chaque récipient (3, 3') ou chaque chambre (5, 5', 5''), dans chaque cas une seule ouverture de restriction (10) allouée individuellement, qui délimite le flux des liquides à introduire dans les récipients (3, 3') ou à évacuer des chambres (5, 5', 5''). L'invention concerne en outre un procédé permettant de prélever des échantillons fluides (2) dans les récipients (3) et à introduire lesdits échantillons fluides (2) dans des chambres (5) disposées en dessous de ces récipients, à l'aide d'un dispositif de transfert (1) de ce type. Ledit dispositif (1) peut être utilisé pour l'immobilisation individuelle des échantillons fluides (2) sur des cibles MALDI-MS (21) ou pour la collecte d'échantillons fluides dans des espaces collecteurs (12) individuels.
EP02779097A 2001-12-21 2002-12-04 Dispositif et proc d pour transf rer des echantillons fluides Withdrawn EP1353752A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH23602001 2001-12-21
CH23602001 2001-12-21
PCT/CH2002/000659 WO2003053585A1 (fr) 2001-12-21 2002-12-04 Dispositif et procédé pour transférer des echantillons fluides

Publications (1)

Publication Number Publication Date
EP1353752A1 true EP1353752A1 (fr) 2003-10-22

Family

ID=4568778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02779097A Withdrawn EP1353752A1 (fr) 2001-12-21 2002-12-04 Dispositif et proc d pour transf rer des echantillons fluides

Country Status (5)

Country Link
US (1) US20040120860A1 (fr)
EP (1) EP1353752A1 (fr)
JP (1) JP2005513456A (fr)
AU (1) AU2002342499A1 (fr)
WO (1) WO2003053585A1 (fr)

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