WO2003102548A1 - Dispositif d'analyse destine au controle de qualite d'une substance gazeuse ou d'un melange gazeux, en particulier de l'air - Google Patents

Dispositif d'analyse destine au controle de qualite d'une substance gazeuse ou d'un melange gazeux, en particulier de l'air Download PDF

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Publication number
WO2003102548A1
WO2003102548A1 PCT/EP2002/005953 EP0205953W WO03102548A1 WO 2003102548 A1 WO2003102548 A1 WO 2003102548A1 EP 0205953 W EP0205953 W EP 0205953W WO 03102548 A1 WO03102548 A1 WO 03102548A1
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WO
WIPO (PCT)
Prior art keywords
analysis
sample
unit
sample preparation
analysis device
Prior art date
Application number
PCT/EP2002/005953
Other languages
German (de)
English (en)
Inventor
Peter Krippner
Manfred Wetzko
Antonio Ruzzu
Albrecht Vogel
Christian Schmidt
Rolf Merte
Jan Czyzewski
Original Assignee
Abb Patent Gmbh
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 Abb Patent Gmbh filed Critical Abb Patent Gmbh
Priority to PCT/EP2002/005953 priority Critical patent/WO2003102548A1/fr
Priority to AU2002344996A priority patent/AU2002344996A1/en
Publication of WO2003102548A1 publication Critical patent/WO2003102548A1/fr

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Classifications

    • 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
    • G01N35/02—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 plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • 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
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • 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
    • G01N1/40—Concentrating samples
    • G01N1/4022—Concentrating samples by thermal techniques; Phase changes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/0332—Cuvette constructions with temperature control
    • 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
    • G01N35/00009—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with a sample supporting tape, e.g. with absorbent zones
    • 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
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
    • G01N15/0612—Optical scan of the deposits
    • 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
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
    • G01N15/0637—Moving support
    • 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
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N2001/222—Other features
    • G01N2001/2223—Other features aerosol sampling devices
    • 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
    • G01N1/40—Concentrating samples
    • G01N1/4022—Concentrating samples by thermal techniques; Phase changes
    • G01N2001/4033—Concentrating samples by thermal techniques; Phase changes sample concentrated on a cold spot, e.g. condensation or distillation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/0332—Cuvette constructions with temperature control
    • G01N2021/0335—Refrigeration of cells; Cold stages
    • 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
    • G01N35/00009—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with a sample supporting tape, e.g. with absorbent zones
    • G01N2035/00019—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with a sample supporting tape, e.g. with absorbent zones cassette structures
    • 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
    • G01N2035/00465—Separating and mixing arrangements
    • G01N2035/00534—Mixing by a special element, e.g. stirrer
    • G01N2035/00554—Mixing by a special element, e.g. stirrer using ultrasound
    • 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
    • G01N35/02—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 plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G01N2035/0401—Sample carriers, cuvettes or reaction vessels
    • G01N2035/0403—Sample carriers with closing or sealing means
    • G01N2035/0405—Sample carriers with closing or sealing means manipulating closing or opening means, e.g. stoppers, screw caps, lids or covers
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature

Definitions

  • the invention relates to an analysis device for quality monitoring of a gaseous substance or mixture of substances, in particular air, with a sampling unit and a downstream sample analysis unit.
  • Such devices are usually used in environmental technology, in particular for air quality monitoring.
  • the air - more precisely the ambient air - represents the most essential medium for the human organism and for the entire living environment. Humans take about 25,000 breaths a day, which get into their lungs essentially unfiltered. Since this extremely sensitive organ does not have any essential filter systems and is therefore extremely vulnerable to external influences, high demands are made on the air quality.
  • human senses - especially the sense of smell and visual perception - are not enough to protect him permanently from all pollutants.
  • a large number of pollutants and poisons are already known which are odorless and / or visual are imperceptible to humans. Due to new products and processes, other, in some cases also unknown, pollutants and poisons can also be expected.
  • Air components that can be particle-bound (aerosols) and / or gaseous.
  • sampling and the sample analysis take place separately from one another.
  • Sampling is usually carried out using special sampling devices, which are then transported to a laboratory for separate analysis.
  • the foreign substances In order to examine air samples, especially for pathogenic components, the foreign substances must generally be dissolved in water or other solvents for further analysis.
  • Sampling is carried out using stationary or portable air samplers, which are usually based on the principle of centrifugal separation, gas washing or membrane filter technology.
  • the disadvantage here is the high expenditure of time and transport required for this.
  • the transport which may require special transport containers, which in turn may be formed with thermo units, and may have to be carried out under vacuum, consumes an amount of time that should not be underestimated.
  • Logistics especially administrative processes in the analysis laboratories, also waste more time.
  • the known analysis device is usually quite large and / or very sensitive, so that it is not suitable for mobile use on site.
  • the sample to be examined comes into contact with a large number of other components such as transport devices, decanting devices and analysis device.
  • a contaminated sample is thus exposed to a variety of facilities and locations, thereby facilitating the spread of contamination.
  • the materials used must be cleaned individually for reuse, which, if contaminated appropriately, causes an enormous effort.
  • the sometimes very expensive components can be used for an uneconomical one
  • DE 44 39 433 A1 discloses an analysis device which solves some of the problems shown above by analyzing a sample taken with a sampling device using an immunochemical analysis step with the sampling device directly on site.
  • a sample is conveyed through a filter system by means of a pump into a glass container, the sample thus obtained is then dissolved in an extraction vessel and then analyzed with an immunoassay.
  • This analysis device is thus small in size and an air sample can be analyzed mobile and directly on site; however, there is the disadvantage here that only one sample can be taken with one device, and that the result is quite imprecise and is highly error-prone due to the necessary manipulations and assembly processes.
  • the invention includes the technical teaching that the sampling unit arranged adjacent to a central analysis chamber introduces a sample taken from the environment into the analysis chamber, a transport unit also arranged adjacent to the analysis chamber being used to process the sample introduced into the analysis chamber.
  • the supply of individual, stored sample preparation units into the analysis chamber is provided, whereby the sample prepared in the analysis chamber can be analyzed by means of the sample analysis unit also arranged adjacent to the central analysis chamber.
  • This solution offers the advantage that all components for gas analysis are compactly housed in one facility. This means that the device can also be used on a mobile basis.
  • several samples can be analyzed automatically precisely and reproducibly, whereby different analysis methods can be used.
  • the contamination is limited due to the spatial arrangement.
  • each sample preparation unit has a cover element for closing an analysis substrate necessary for the analysis and provided in the sample preparation unit.
  • the cover element also prevents on the one hand that the analysis substrate can get out of the sample preparation unit and on the other hand that substances in the sample preparation unit can get to the analysis substrate. This means that several sample preparation units can be optimally stored in a confined space, regardless of their location and position.
  • the storage element of the analysis substrate can also be significantly increased by the appropriately designed cover element.
  • Another measure improving the invention provides that the
  • Sample preparation unit interacts with a thermocouple, with which the sample taken can be transformed into an aggregate state in accordance with the analysis method used in each case and thus can be directly condensed onto the analysis substrate.
  • the thermocouple can be designed both for cooling, for example for condensation, or for heating, for example for initializing an analysis reaction.
  • thermocouple is designed in the manner of a Peltier element which is in contact with at least one wall of the sample preparation unit. In this way, the thermocouple can be easily realized with an easily controllable, small-sized component.
  • Vibrations cooperate to mix the analysis substrate with the sample in the sample preparation unit.
  • the individual sample preparation unit can be rolled up and unrolled on a flexible
  • Connection element of the transport unit are attached in order to transport several sample preparation units one after the other - individually or in groups - for gas analysis in the analysis chamber. In this way, several samples can be automatically analyzed over a longer period of time and thus not only a punctual, discrete examination, but much more continuous, quasi-continuous examination can be carried out.
  • Exchangeable cassette [jsij is designed with a rolling mechanism located on an insertion side for feeding the rolled-up sample preparation units into the analysis chamber, in order to ensure a rapid replacement of sample preparation units stored therein. So the
  • Sample preparation units are ended, but can be continued by simply changing the transport unit.
  • the exchangeable cassette can then be disposed of or refurbished, although this no longer has to be carried out locally to the analysis device.
  • the transport unit which is designed as an exchangeable cassette, can be thermally insulated or thermostated in order to guarantee uniform conditions for optimal measurement results for the sample preparation units stored therein with the respective analysis substrates and to increase the shelf life.
  • the transport unit have means for opening and / or closing the cover element relative to the sample preparation unit when a sample preparation unit is transported into or out of the analysis chamber
  • the analysis substrate which is located in the sample preparation unit, can thus be kept under protective gas or vacuum until just before the sample is taken. In this way, the shelf life is significantly increased. Furthermore, after the sample preparation unit has been fed into the analysis chamber, it can be closed again with the sample. The sample preparation units can thus be optimally stored in terms of space and time.
  • a control unit is provided, the measuring sensors for detecting
  • the measuring sensors interacting with the control unit are preferably suitable for measuring the air temperature, the relative air humidity and the sample flow in the inflow region of the sample preparation unit.
  • the sampling unit has a pump that can be controlled by the control unit, in order to selectively convey a defined amount of the gaseous sample from the environment into the analysis chamber to the sample preparation unit.
  • the controllable pump is advantageously designed both for (first) loading a sample preparation unit with a sample and for enriching a sample prepared in a sample preparation unit with the sample taken. Since the pump is designed to perform two functions, one component can be saved and the entire device is smaller.
  • sample analysis unit can have a modular structure, so that different sample analysis units can be used to use different analysis methods. In this way, depending on the sample to be examined, a suitable analysis method can be selected, which can be used quickly and without great effort due to the modular structure.
  • the means for optical sample analysis can comprise at least one transmitter, one optical system and one receiver. It is particularly advantageous if the optics have at least one converging lens and one diffusing lens as well as a semi-transparent element for the targeted guidance of the light beams.
  • optical sample analysis is carried out by collimating and expanding the light beam.
  • FIG. 1 shows a schematic structure of an analysis device for quality monitoring of air
  • FIG. 2 shows a detailed view of the schematic analysis chamber from FIG. 1,
  • FIG. 3 shows a schematic illustration of optical analysis means of the sample analysis unit
  • Fig. 4 is a schematic representation of a separate sampling
  • Fig. 5 is a schematic representation of a separate sample analysis.
  • the analysis chamber 3 represents the center of the analysis device. All others are essential around them
  • a sample preparation unit 5 connected to the transport unit 4 is transported into the analysis chamber 3.
  • the sample preparation unit 5 has a cover element 6, which can be removed from the sample preparation unit 5 before entering the analysis comb 3 by means of a cover handling unit 7.
  • the cover element prevents, on the one hand, that the analysis substrate can get out of the sample preparation unit 5, and, on the other hand, that substances can reach the analysis substrate in the sample preparation unit 5 from the outside.
  • a sample 8 is taken from the surroundings by means of a sampling unit 1 and introduced into the analysis chamber 3, more precisely into the sample preparation unit 5.
  • the sampling unit 1 is preferably designed as a pump, which has a connection for the targeted forwarding of the sample 8 into the analysis chamber 3 and there for the targeted forwarding into the sample preparation unit 5 and an opening on the inlet side for sucking the sample 8 out of the gaseous medium surrounding the analysis device ,
  • the sampling is controlled by a control unit.
  • Sample 8 can be specially prepared. This happens in different steps. First, the sample 8 is condensed into a denser physical state by means of a thermocouple 9 which interacts with the sample preparation unit 5. The condensation is controlled by the control unit directly on the analysis substrate 10 located in the sampling unit 5. The solvent 11 required for the preparation of the sample 8 is obtained directly from the condensation of the air, more precisely the moist air. In the present case, water is used as the solvent. With this air humidity condensation there is already a certain concentration of the sample 8 to be analyzed in the solution. The sample 8 thus arrives in dissolved form on the analysis substrate 10 located in the sampling unit 5. A further important step for carrying out the analysis is a thorough mixing of the analysis substrate 10 and the dissolved sample 8.
  • an energized piezo element 12 is attached below the sample preparation unit 5. which controls the mixing by means of mechanical vibrations via the control unit.
  • it may have to be brought to a defined analysis temperature, particularly in the case of time-dependent detection reactions. This is done by the thermocouple 9 already used in the condensation, which is designed such that it can both cool and heat.
  • the sample preparation phase ends when the starting point of the detection reaction is reached.
  • the following analysis can take place without transporting the sample 8 into another position of the analysis chamber 3.
  • One is not limited to the method and the facility for analysis; both are interchangeable with different modular kits.
  • the analysis described here takes place optically as an absorption measurement. In this measurement, light 13 is emitted from a transmitter 14 into the sample preparation unit 5 onto the prepared sample 8, from where it is reflected. The reflected light 13 is detected by means of a receiver 15 and the data obtained are evaluated by an evaluation unit. Because different
  • Sample analysis units 2 can be used, which differ structurally , it is possible that, due to the arrangement of other components, for example the sampling unit 1, the analysis cannot take place at the same location at which the sampling and the sample preparation take place.
  • the sample 8 can be transported to an adjacent position by means of the transport unit 4.
  • the thermocouple 9 can be connected to the sample preparation unit 5 or can be provided individually in the analysis chamber 3 for interaction with the sample preparation unit 5. If the thermocouple 9 is not integrated in the sample preparation unit 5, it can be moved with the sample preparation unit 5 by means of a corresponding mechanism (not shown).
  • the sample 8 can be closed by means of a lid element 6 via a lid handling unit 7. Finally, the closed samples 8 can be rolled up in the transport unit 4 and the entire transport unit 4, which is designed as an exchangeable cassette, can be replaced by a new transport unit 4, likewise designed as an exchangeable cassette, with unused sample preparation units 5.
  • the analysis chamber 3 shown in detail in FIG. 2 illustrates the structure of the sample preparation unit 5 and the processes taking place in the analysis chamber 3.
  • the sample preparation unit is U-shaped and thus forms a cavity for receiving the analysis substrate 10 and the sample 8. It is connected to the transport unit 4 in such a way that the opening faces the sampling unit 1.
  • the thermocouple 9 and the piezo element 12 are located below the sample preparation unit, both of which interact with the sample preparation unit 5. In the example shown here, the thermocouple 9 and the piezo element 12 are not integrated in the sample preparation unit 5, but both are located as separate units below the sample preparation unit 5 connected to the transport unit 4 in the analysis chamber 3.
  • sample analysis is carried out here without changing its location in the analysis chamber 3.
  • the sample preparation unit 5 is comparable to a film in a camera, which is transported from the film roll into a space for exposure and after exposure to a take-up roll, from the feed side of the transport unit 4 designed as an exchangeable cassette into the analysis chamber 3 and after the analysis has been carried out transported further into the exit side of the transport unit 4.
  • the sample preparation units 5 are arranged continuously one behind the other on a connecting element 16, preferably a flexible, rollable band.
  • FIG. 3 schematically shows an optical sample analysis unit 2 consisting of a transmitter 14, a receiver 15 and an optics 17 comprising at least one lens system 18 and a semi-transparent redirection element 19.
  • the transmitter 14 emits bundled light, more precisely light signals - here in the form of two, the outer dimensions of the light cone depicting light rays - which are on a semi-transparent
  • Redirection element 19 for example hit a semi-transparent mirror. This redirects the emitted light signals to a first lens or a first part of a lens system 18.
  • the spatial extent of the light signals is expanded, which is shown schematically here using a concave-concave lens.
  • the light beams then strike a second lens or a second part of the lens system 18, which directs the spatially spread light rays such that they fall parallel to one another perpendicularly onto the sample preparation unit 5 with the sample 8 located therein. From there, the light signals are reflected and hit the second part of the lens system 18 again.
  • the light signals are bundled, in accordance with the laws of refraction, directed further to the first part of the lens system 18, from where they strike the semi-transparent deflection element 19 in the form of a semi-transparent mirror.
  • This is designed such that the light beams reflected by the sample preparation unit 5 pass through the mirror to a receiver 15 arranged behind the mirror.
  • This collimation and Widening the light signals increases the efficiency of the optical analysis method.
  • the sample preparation unit 5 can be coated reflectively in the case of a transparent sample 8.
  • 4 and 5 show the spatially separated sampling or sample preparation and sample analysis.
  • 4 shows the sampling and the sample preparation.
  • Thermocouple 9 and piezo element 12 are not integrated into the sample preparation unit 5 here, but are located below the sample preparation unit 5 arranged on the transport unit 4.
  • a second thermocouple 9 and a second piezo element 12 are arranged below the analysis position of the sample preparation unit 5.
  • the second thermocouple and piezo element 9, 12 ensure that the analysis position, which differs locally from the position of the sample preparation, is the same

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

La présente invention concerne un dispositif d'analyse destiné au contrôle de qualité d'une substance gazeuse ou d'un mélange gazeux, en particulier de l'air. Le dispositif selon l'invention comporte une unité de prélèvement d'échantillon (1) et une unité d'analyse d'échantillon (2) placée en aval. Ladite unité de prélèvement d'échantillon (1) logée à côté d'une chambre d'analyse centrale (3) guide un échantillon prélevé dans l'environnement, dans la chambre d'analyse (3). Pour la mise en oeuvre d'un traitement de l'échantillon (8) guidé dans la chambre d'analyse (3), le dispositif selon l'invention comporte une unité de transport (4) également logée à côté de la chambre d'analyse centrale (3), destinée à alimenter des unités de traitement d'échantillon (5) individuelles, approvisionnées, dans la chambre d'analyse (3). L'échantillon traité (8) peut ainsi être analysé au moyen de l'unité d'analyse d'échantillon (2) également logée à côté de la chambre d'analyse centrale (3).
PCT/EP2002/005953 2002-05-31 2002-05-31 Dispositif d'analyse destine au controle de qualite d'une substance gazeuse ou d'un melange gazeux, en particulier de l'air WO2003102548A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2002/005953 WO2003102548A1 (fr) 2002-05-31 2002-05-31 Dispositif d'analyse destine au controle de qualite d'une substance gazeuse ou d'un melange gazeux, en particulier de l'air
AU2002344996A AU2002344996A1 (en) 2002-05-31 2002-05-31 Analysis device for monitoring the quality of a gaseous substance or substance mixture, particularly air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2002/005953 WO2003102548A1 (fr) 2002-05-31 2002-05-31 Dispositif d'analyse destine au controle de qualite d'une substance gazeuse ou d'un melange gazeux, en particulier de l'air

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WO2003102548A1 true WO2003102548A1 (fr) 2003-12-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004010109A2 (fr) * 2002-07-19 2004-01-29 Abb Patent Gmbh Dispositif d'analyse mobile
WO2014005168A2 (fr) * 2012-07-04 2014-01-09 Wolfgang Vogl Procédé pour l'analyse d'un échantillon

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