WO1997026083A1 - Dispositif servant a effectuer des tests diagnostiques rapides sur des echantillons de liquides - Google Patents

Dispositif servant a effectuer des tests diagnostiques rapides sur des echantillons de liquides Download PDF

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Publication number
WO1997026083A1
WO1997026083A1 PCT/EP1996/005830 EP9605830W WO9726083A1 WO 1997026083 A1 WO1997026083 A1 WO 1997026083A1 EP 9605830 W EP9605830 W EP 9605830W WO 9726083 A1 WO9726083 A1 WO 9726083A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
window
pad
shell
fact
Prior art date
Application number
PCT/EP1996/005830
Other languages
English (en)
Inventor
Giovanna Quagliarella
Paola Piro
Bruce Fifield
Nico Smeenk
Roberta Cantone
Paolo Della Croce
Original Assignee
Boehringer Mannheim Italia S.P.A.
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 Boehringer Mannheim Italia S.P.A. filed Critical Boehringer Mannheim Italia S.P.A.
Priority to EP96944653A priority Critical patent/EP0874690A1/fr
Priority to AU13061/97A priority patent/AU1306197A/en
Publication of WO1997026083A1 publication Critical patent/WO1997026083A1/fr

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
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5023—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures with a sample being transported to, and subsequently stored in an absorbent for analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
    • G01N33/54366—Apparatus specially adapted for solid-phase testing
    • G01N33/54386—Analytical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/74—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving hormones or other non-cytokine intercellular protein regulatory factors such as growth factors, including receptors to hormones and growth factors
    • G01N33/76—Human chorionic gonadotropin including luteinising hormone, follicle stimulating hormone, thyroid stimulating hormone or their receptors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/02—Adapting objects or devices to another
    • B01L2200/025—Align devices or objects to ensure defined positions relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0809—Geometry, shape and general structure rectangular shaped
    • B01L2300/0825—Test strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
    • B01L2400/0406—Moving fluids with specific forces or mechanical means specific forces capillary forces

Definitions

  • the subject of this invention is a device for the carrying out of rapid diagnostic tests on samples of liquids and in particular tests on urine samples on immunochromatographic membranes, such as HCG Human Chorionic Gonadotropin (pregnancy), FSH Follitropin (identification of the follicular phase), LH Human Luteotropin (identification of the fertile period) etc.
  • immunochromatographic membranes such as HCG Human Chorionic Gonadotropin (pregnancy), FSH Follitropin (identification of the follicular phase), LH Human Luteotropin (identification of the fertile period) etc.
  • Such devices essentially include a porous analysis strip containing a predetermined quantity of reagent which changes colour upon contact with the liquid to be analysed in giving an almost immediate indication of the test result.
  • the simplest devices consist of the porous analysis strip only, with an absorbent end, which is soaked, for example by immersion in the liquid to be analysed.
  • Such devices even though simple and of low cost, turn out to be unsuitable from a hygienic point of view as they require direct contact with the user's hands, even after immersion in the sample and necessarily require that the sample be collected in a suitable container.
  • the device comprises a prolonged casing, made in two halves, between which the porous analysis strip is included together with a small absorbent pad, positioned so as to protrude from one end of the casing.
  • the device is completed by at least an external protective hood which is applied to the casing in such a way as to cover the window during the taking of the liquid sample to prevent the liquid from entering through the window and thus prejudicing the test result. After the pad has been soaked in liquid, the protective hood is removed from the casing and placed on its other end so as to cover the pad.
  • This device is of rather complicated construction, and, being made in a variety of separate pieces, therefore costly. It also requires particular care on the part of the user who must necessarily use both hands to place the hood at one end or the other at different points in the test and this can include hygiene problems with the possibility of contact of the sample with the hands not being absolutely excluded.
  • JP-0712467, JP-0712468, JP-07120465 and JP-07120466 describe devices of this same type and of different conformations but all lacking any protection of the reading window against contamination by the liquid sample.
  • An object of the invention is to supply a device for rapid diagnostic tests on samples of liquids which can be used simply and safely by unskilled persons and which assures the maintaining of conditions of hygiene during use.
  • Another object of the invention is to supply a device which is relatively simple and of low cost.
  • a further object of the invention is to supply such a device which can be manipulated with one hand only.
  • the device according to a version of the invention has a casing containing the porous analysis strip and a liquid absorbent pad which protrudes for a certain distance from its end.
  • This casing has at least one window and is housed in an axially sliding external shell which is also provided with a movable window to register with the window in the casing.
  • the external shell is movable from a backward position in which it leaves the pad uncovered and closes the window in the casing below, to allow the sampling of the liquid without risk of contamination of the window, and a forward position in which it covers the protruding pad and superimposes its window on the one in the casing underneath to allow the result of the test to be seen.
  • the porous analysis strip and the absorbent pad are carried by a sliding cursor inside the containing casing and having a control protruding from a longitudinal slot cut in the casing so that it can be moved from a position of liquid sampling, in which the pad protrudes from the casing, to a position of reading in which the porous analysis strip is in correspondence with the window in the casing.
  • Figure 1 is a plan view of a form of the device according to the invention, with the pad exposed;
  • Figure 2 is a side view of the device of Figure 1;
  • Figure 3 is a plan view similar to the one in Figure 1, with the pad covered and the window in register;
  • Figure 4 is an end view taken from the right-hand side of Figure 1;
  • Figure 5 is an exploded view of the device.
  • Figure 6 is an axono etric view of the assembled device, without its external protective shell;
  • Figure 7 is a plan view of a second form of the device according to the invention, with the pad exposed;
  • Figure 8 is a side view of the device of Figure 7;
  • Figure 9 is a plan view similar to that of Figure 7, with the pad covered and the analysis strip in the reading position, registered with the casing window;
  • Figure 10 is an exploded view of the device in Figure 7
  • the device according to the invention includes a casing or body 1, enclosing a porous analysis strip 2 and an absorbent pad
  • the casing 1 has a long form and consists of two halves, one lower 5 and one upper 6, substantially equal and fitting together so as to accommodate inside them, the porous reagent strip 2, visible through an oval window 7 situated in the upper half 6, and to press on and off the pad 3, which is also of elongated shape and which is in contact with the strip 2, of which it constitutes a prolongation. To allow the exit of the pad
  • the walls of the two halves of the casing 1 have a hollow space 8, at one end.
  • the casing or body 1 on the side opposite to the pad 3 has a slight widening 9, creating a couple of lateral spaces 10.
  • the external shell 4 has an opening 11 at one end to insert the elongated casing 1 and another opening 12 at the other end (figure 4) for the passage of the pad 3.
  • An oval window 13, is placed on the upper side of the shell 4, with dimensions not less than those of the window 7 on the casing 1 and which can be brought into register with the latter to allow the reading of the porous strip 2.
  • means of reciprocal attachment can be provided, achieved, for example by a couple of lateral notches 15 cut in the casing 1 and by corresponding flexible tongues 16 on the internal walls of the shell 4, preferably in correspondence with the opening 11.
  • the flexible tongues 16 are oriented in such a way as when the casing 1 is inserted in the shell 4, they bend and pass over the notches 15, whereas when moved in the opposite direction, they engage with the notches 15.
  • the device according to the invention is in the arrangement shown in Figure 1, with the outside shell 4 withdrawn on the casing or body 1, so as to abut against the couple of lateral spaces 10 on the casing 1.
  • the pad 3 protrudes from the device and can so be used to collect the sample, either by immersing it into a collection container or by placing it directly in the patient's urine flow.
  • the user's fingers which hold the device at the opposite end from the pad 3 are well distant from the collection area and are therefore well protected.
  • the window 7 in the casing 1 is protected by the external shell 4, in eliminating all risk that urine spray could directly reach the porous strip 2 below.
  • the user slides the outside shell 4 on the casing 1, until the flexible tongues 16 engage with the corresponding notches 15.
  • test result is not directly visible on the porous strip 2, but requires special reading as occurs in some types of analysis
  • the device according to the invention in the condition shown in Figure 3, is taken to the reading machine, to be considered as known.
  • Both the casing 1 and the shell 4 are conveniently made in plastic material, polystyrene for example, and the two halves 5 and 6 of the casing 1 can be joined together in any way, even by welding, ultrasonic welding for example. It can be furthermore foreseen that the pad 3 is mainly or completely housed in the casing 1 and is accessible to be soaked in liquid through holes made in the casing. From what has been written above, the advantages of the device according to the invention appear evident and it can also be operated with one hand. To facilitate this, grips can be provided on the casing 1 and/or on the outside shell 4. For example a finger hold can be provided on the casing 1 and/or a couple of lateral incisions with curved profile on the outside shell 4 or on the casing 1.
  • the outside shell 4 can be longer than shown in the attached Figures, so as to allow an intermediate position between the two shown in Figures 1 and 3, position in which the shell 4 covers both the pad 3 and the window 7 of the casing 1.
  • the porous analysis strip 2 and the absorbent pad 3 are supported by a cursor 30, moveable axially inside the casing 1, from a position in which the pad 3 protrudes from the casing to allow the collection of the sample liquid (Fig. 7), to a position in which the pad 3 is covered by the casing 1 and the analysis strip 2 is in correspondence with the window 7 in the casing to allow reading. Movement of the cursor 30 is by means of a control 31, protruding through a longitudinal slot 32 in the casing 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Hematology (AREA)
  • Molecular Biology (AREA)
  • Urology & Nephrology (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Cell Biology (AREA)
  • Endocrinology (AREA)
  • Microbiology (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Reproductive Health (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

Ce dispositif servant à effectuer des tests diagnostiques rapides sur des échantillons de liquides comporte un boîtier (1) enfermant un tampon (3) destiné à la collecte de l'échantillon de liquide au niveau d'une extrémité, ainsi qu'une bande poreuse, comprenant un réactif d'analyse (2) et visible à travers une fenêtre (7) ménagée dans le boîtier (1), de même qu'un capuchon protecteur extérieur (4), également pourvu d'une fenêtre (13), lequel capuchon (4) est mobile sur le boîtier (1) entre au moins deux positions: une position de retrait dans laquelle il expose la bande poreuse (3), aux fins de collecte des échantillons liquides, et recouvre la fenêtre (7) du boîtier (1), et une position avancée dans laquelle il recouvre la bande poreuse (3) et sa fenêtre (13) est alignée sur la fenêtre (7) du boîtier (1), aux fins de lecture du résultat du test.
PCT/EP1996/005830 1996-01-17 1996-12-23 Dispositif servant a effectuer des tests diagnostiques rapides sur des echantillons de liquides WO1997026083A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP96944653A EP0874690A1 (fr) 1996-01-17 1996-12-23 Dispositif servant a effectuer des tests diagnostiques rapides sur des echantillons de liquides
AU13061/97A AU1306197A (en) 1996-01-17 1996-12-23 Device for the carrying out of rapid diagnostic tests on samples of liquids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI000069A IT1281738B1 (it) 1996-01-17 1996-01-17 Dispositivo per l'esecuzione di test diagnostici rapidi su campioni di liquidi
ITMI96A000069 1996-01-17

Publications (1)

Publication Number Publication Date
WO1997026083A1 true WO1997026083A1 (fr) 1997-07-24

Family

ID=11372929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/005830 WO1997026083A1 (fr) 1996-01-17 1996-12-23 Dispositif servant a effectuer des tests diagnostiques rapides sur des echantillons de liquides

Country Status (4)

Country Link
EP (1) EP0874690A1 (fr)
AU (1) AU1306197A (fr)
IT (1) IT1281738B1 (fr)
WO (1) WO1997026083A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962771A1 (fr) * 1998-06-04 1999-12-08 Mizuho Medy Co., Ltd. Appareil de détection et méthode pour cela
FR2780317A1 (fr) * 1998-06-30 1999-12-31 Vedalab Dispositif de determination d'un analyte dans un echantillon liquide
WO2000037939A1 (fr) * 1998-12-22 2000-06-29 Matthias Werner Engel Dispositif de test pour dosages immunologiques
EP1121591A1 (fr) * 1998-09-17 2001-08-08 Stuart C. Bogema Dispositif de dosage immunologique servant a recueillir de la salive et a l'analyser
EP1538444A1 (fr) * 2003-12-05 2005-06-08 HUMAN Gesellschaft für Biochemica und Diagnostica mbH Dispositif de test
WO2005095967A1 (fr) * 2004-03-23 2005-10-13 Quidel Corporation Chromatographie sur membrane a phase hybride
FR2873208A1 (fr) * 2004-07-13 2006-01-20 Vedalab Sa Dispositif avec organe de prelevement pour la detection d'un analyte dans un echantillon liquide
US7794656B2 (en) 2006-01-23 2010-09-14 Quidel Corporation Device for handling and analysis of a biological sample
US7871568B2 (en) 2006-01-23 2011-01-18 Quidel Corporation Rapid test apparatus
EP2329244A2 (fr) * 2008-08-29 2011-06-08 Infusion Innovations, Inc. Ensemble de prélèvement à transfert de fluide sans soupape de retenue et son procédé d'utilisation
CN102781339A (zh) * 2010-03-01 2012-11-14 赞泰克斯有限公司 妊娠测试计
FR3100890A1 (fr) * 2019-09-17 2021-03-19 Innopsys Méthode et lecteur portable d’analyse d’échantillon de liquide biologique
US11420201B2 (en) 2018-10-10 2022-08-23 Spd Swiss Precision Diagnostics Gmbh Compact testing device
GB2616688A (en) * 2022-03-15 2023-09-20 Zhejiang Orient Gene Biotech Co Ltd Device for detecting an analyte in a liquid sample
WO2023222728A1 (fr) * 2022-05-20 2023-11-23 Ng Biotech Dispositif pour l'analyse rapide d'un échantillon biologique, destiné à la détection de la présence d'au moins un analyte dans ledit échantillon biologique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238652A (en) * 1990-06-20 1993-08-24 Drug Screening Systems, Inc. Analytical test devices for competition assay for drugs of non-protein antigens using immunochromatographic techniques
JPH0727761A (ja) * 1993-07-08 1995-01-31 Sankyo Co Ltd 携帯用診断具
WO1995008761A1 (fr) * 1993-09-20 1995-03-30 Polyfiltronics, Inc. Modeles de dispositif d'analyse et procedes pour effectuer des analyses
JPH07120467A (ja) * 1993-10-27 1995-05-12 Dainippon Printing Co Ltd 携帯用診断装置
EP0653639A1 (fr) * 1993-11-12 1995-05-17 Unipath Limited Dispositifs d'analyse et leurs utilisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238652A (en) * 1990-06-20 1993-08-24 Drug Screening Systems, Inc. Analytical test devices for competition assay for drugs of non-protein antigens using immunochromatographic techniques
JPH0727761A (ja) * 1993-07-08 1995-01-31 Sankyo Co Ltd 携帯用診断具
WO1995008761A1 (fr) * 1993-09-20 1995-03-30 Polyfiltronics, Inc. Modeles de dispositif d'analyse et procedes pour effectuer des analyses
JPH07120467A (ja) * 1993-10-27 1995-05-12 Dainippon Printing Co Ltd 携帯用診断装置
EP0653639A1 (fr) * 1993-11-12 1995-05-17 Unipath Limited Dispositifs d'analyse et leurs utilisation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 95, no. 001 *
PATENT ABSTRACTS OF JAPAN vol. 95, no. 005 *

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962771A1 (fr) * 1998-06-04 1999-12-08 Mizuho Medy Co., Ltd. Appareil de détection et méthode pour cela
US6753189B1 (en) 1998-06-04 2004-06-22 Mizuho Medy Co., Ltd. Detection apparatus and method for the same
FR2780317A1 (fr) * 1998-06-30 1999-12-31 Vedalab Dispositif de determination d'un analyte dans un echantillon liquide
WO2000000288A1 (fr) * 1998-06-30 2000-01-06 Vedalab Dispositif de determination d'un analyte dans un echantillon liquide
US7459125B1 (en) 1998-06-30 2008-12-02 Vedalab Device for determining an analyte in a liquid sample
EP1121591A1 (fr) * 1998-09-17 2001-08-08 Stuart C. Bogema Dispositif de dosage immunologique servant a recueillir de la salive et a l'analyser
EP1121591A4 (fr) * 1998-09-17 2004-05-19 Stuart C Bogema Dispositif de dosage immunologique servant a recueillir de la salive et a l'analyser
WO2000037939A1 (fr) * 1998-12-22 2000-06-29 Matthias Werner Engel Dispositif de test pour dosages immunologiques
DE19859066C2 (de) * 1998-12-22 2003-04-17 Engel Matthias Werner Testvorrichtung für Immunoassays
EP1538444A1 (fr) * 2003-12-05 2005-06-08 HUMAN Gesellschaft für Biochemica und Diagnostica mbH Dispositif de test
DE10356951A1 (de) * 2003-12-05 2005-06-30 Human Gesellschaft für Biochemica und Diagnostica mbH Testvorrichtung
WO2005095967A1 (fr) * 2004-03-23 2005-10-13 Quidel Corporation Chromatographie sur membrane a phase hybride
WO2006016051A2 (fr) * 2004-07-13 2006-02-16 Vedalab Dispositif avec organe de prelevement pour la detection d’un analyte dans un echantillon liquide
WO2006016051A3 (fr) * 2004-07-13 2006-08-10 Vedalab Dispositif avec organe de prelevement pour la detection d’un analyte dans un echantillon liquide
FR2873208A1 (fr) * 2004-07-13 2006-01-20 Vedalab Sa Dispositif avec organe de prelevement pour la detection d'un analyte dans un echantillon liquide
US7794656B2 (en) 2006-01-23 2010-09-14 Quidel Corporation Device for handling and analysis of a biological sample
US7871568B2 (en) 2006-01-23 2011-01-18 Quidel Corporation Rapid test apparatus
EP2329244A2 (fr) * 2008-08-29 2011-06-08 Infusion Innovations, Inc. Ensemble de prélèvement à transfert de fluide sans soupape de retenue et son procédé d'utilisation
EP2329244A4 (fr) * 2008-08-29 2012-09-19 Infusion Innovations Inc Ensemble de prélèvement à transfert de fluide sans soupape de retenue et son procédé d'utilisation
CN102781339A (zh) * 2010-03-01 2012-11-14 赞泰克斯有限公司 妊娠测试计
US11420201B2 (en) 2018-10-10 2022-08-23 Spd Swiss Precision Diagnostics Gmbh Compact testing device
FR3100890A1 (fr) * 2019-09-17 2021-03-19 Innopsys Méthode et lecteur portable d’analyse d’échantillon de liquide biologique
WO2021052983A1 (fr) * 2019-09-17 2021-03-25 Innopsys Méthode et lecteur portable d'analyse d'échantillon de liquide biologique
GB2616688A (en) * 2022-03-15 2023-09-20 Zhejiang Orient Gene Biotech Co Ltd Device for detecting an analyte in a liquid sample
GB2616689A (en) * 2022-03-15 2023-09-20 Zhejiang Orient Gene Biotech Co Ltd Device for detecting an analyte in a sample
WO2023222728A1 (fr) * 2022-05-20 2023-11-23 Ng Biotech Dispositif pour l'analyse rapide d'un échantillon biologique, destiné à la détection de la présence d'au moins un analyte dans ledit échantillon biologique
FR3135785A1 (fr) * 2022-05-20 2023-11-24 Ng Biotech Dispositif pour l’analyse rapide d’un échantillon biologique, destiné à la détection de la présence d’au moins un analyte dans ledit échantillon biologique

Also Published As

Publication number Publication date
ITMI960069A0 (fr) 1996-01-17
IT1281738B1 (it) 1998-02-27
AU1306197A (en) 1997-08-11
ITMI960069A1 (it) 1997-07-17
EP0874690A1 (fr) 1998-11-04

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