WO2012012174A1 - Boîtier de capteur et chimie de réactif - Google Patents

Boîtier de capteur et chimie de réactif Download PDF

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Publication number
WO2012012174A1
WO2012012174A1 PCT/US2011/042357 US2011042357W WO2012012174A1 WO 2012012174 A1 WO2012012174 A1 WO 2012012174A1 US 2011042357 W US2011042357 W US 2011042357W WO 2012012174 A1 WO2012012174 A1 WO 2012012174A1
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WO
WIPO (PCT)
Prior art keywords
sensor
channel
cap
calibration
kit
Prior art date
Application number
PCT/US2011/042357
Other languages
English (en)
Inventor
Debapriya Mazumdar
David G. Kellner
Original Assignee
Andalyze, Inc.
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
Priority claimed from US12/838,740 external-priority patent/US8951472B2/en
Priority claimed from US12/838,762 external-priority patent/US8815156B2/en
Application filed by Andalyze, Inc. filed Critical Andalyze, Inc.
Publication of WO2012012174A1 publication Critical patent/WO2012012174A1/fr

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Classifications

    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • G01N2021/6482—Sample cells, cuvettes
    • 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
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N2035/0097—Control arrangements for automatic analysers monitoring reactions as a function of time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/022—Casings
    • G01N2201/0221—Portable; cableless; compact; hand-held
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/40—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for data related to laboratory analysis, e.g. patient specimen analysis
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/40—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation

Definitions

  • Fluorescence spectroscopy is a technique well suited for detection of very small concentrations of analytes. Fluorescence provides significant signal amplification, since a single fluorophore can absorb and emit many photons, leading to strong signals even at very low concentrations. In addition, the fluorescence time-scale is fast enough to allow real-time monitoring of concentration fluctuations. Fluorescent properties only respond to changes related to the fluorophore, and therefore can be highly selective. Also, fluorometers, for measuring fluorescence signals, are commercially available.
  • the present invention is a sensor, comprising a sensor housing, having a channel; a porous substrate, in the channel; an analysis chemistry reagent, on the porous substrate; and a nozzle, in fluid connection with the channel.
  • the porous substrate fills a cross section of the channel, and the cross-sectional area of the channel at the porous substrate is greater than the cross-sectional area at the nozzle.
  • the present invention is a kit, comprising a box; and a plurality of sensors, and a plurality of cuvettes.
  • One of the plurality of sensors and one of the plurality of cuvettes are each in a first sealed bag of a plurality of first sealed bags.
  • the present invention is a method of detecting an ion, comprising flowing a sample fluid through the channel of a sensor, to produce a product; collecting the product; and detecting the presence of the product.
  • sample is defined as a composition suspected of containing the analyte of interest that will be subjected to analysis.
  • a sample for analysis is in liquid form, or can be converted into liquid form, and preferably the sample is an aqueous composition.
  • a sample may be from any source, such as an industrial sample from a waste stream, or a biological sample such as blood, urine or saliva. Other examples include drinking water, paint, or paint chips.
  • a sample may be treated, such as by extract, dilution or filtration, or it may be a reconstituted precipitate from an industrial or biological source.
  • analyte is defined as one or more substances potentially present in a sample, for which the analysis tests.
  • An analysis for an analyte determines the presence, quantity or concentration, of the analyte in the sample.
  • analysis chemistry reagents refers to one or more reagents, that when reacted with a sample containing an analyte, produce a visualization species.
  • the visualization species is produced in proportion to the amount or concentration of the analyte.
  • Analysis chemistry reagents preferably include a reactor and a substrate.
  • the "reactor” is at least one compound, moiety and/or material; the “substrate” is also at least one compound, moiety and/or material.
  • the term “produce” includes forming by chemical reaction, as well as releasing from being bound or attached to something else.
  • the reactor is specific for an analyte
  • the substrate is specific for a reactor.
  • the substrate includes a label. The reactor and the substrate may be attached, for example covalently or by hydrogen bonding (hybridization).
  • visualization species is a compound, moiety or material that can be detected, such as a fluorescent compound or a colored compound.
  • a visualization species includes a label, which is that part of the visualization species that allows for detection, for example a colored label (such as a dye or a colored particle, including semiconductor nanoparticles (quantum dots)), a fluorescent label (such as fluorescent compound) or a magnetic label (such as a magnetic particle).
  • the label of the visualization species originated as the label of the substrate. It is possible for the visualization species and the substrate to be the same.
  • the term “specifically bind” means that binding between the two things is more favored binding, as compared to most other members of the same class or genus. For example, the binding between an antibody specific for an antigen, and the antigen; and hybridization between two complementary strands of DNA; are both examples of specific binding.
  • aptamer refers to nucleic acid that specifically binds a target compound or moiety.
  • nucleic acid enzyme refers to nucleic acid that catalyses a chemical reaction (such as cleavage of a substrate) when it binds a specific cofactor (such as a divalent metal ion). Both an aptamer and a nucleic acid enzyme are examples of reactors.
  • formational change refers to the process by which a nucleic acid, such as an aptamer, adopts a different secondary or tertiary structure.
  • fold may be substituted for conformational change.
  • Figure 1 illustrates an elevational view of a sensor base.
  • Figure 2 illustrates a plan view of a sensor base.
  • Figure 3 illustrates an opposing view to Figure 2 of a sensor base.
  • Figure 4 illustrates an elevational view of a sensor cap.
  • Figure 5 illustrates a plan view of a sensor cap.
  • Figure 6 illustrates an opposing view to Figure 5 of a sensor cap.
  • Figure 7 illustrates an elevational view of a cuvette.
  • Figure 8 illustrates a syringe
  • Figure 9 illustrates a bag which contains a plurality of sensor housings.
  • the present invention makes use of the discovery of a compact reagent container for field use.
  • the compact reagent container preferably includes analysis chemistry reagents, such as nucleic acid enzymes, which allow the device to be adapted to many different analytes. Concentrations of ions such as lead, uranium, copper, mercury, cadmium, silver, etc., may be detected as low as a part per billion (ppb) level.
  • a nozzle designed to accelerate a sample fluid through the compact reagent container, aids in mixing the sample fluid with the analysis chemistry reagents.
  • the compact reagent container is capable of simply, rapidly, and inexpensively measuring very small concentrations of analytes.
  • FIG. 1 illustrates an elevational view of a sensor base 100 having aspects of the present invention.
  • the sensor base 100 includes an upper base body 110, a lower base body 1 15, a wide channel 120, a narrow channel 125, a frit 130, an insertive interlocking region 140, a nozzle 150, an outer skirt 160, and an inner skirt 165.
  • the frit 130 includes dried reagents 135.
  • the insertive interlocking region 140 includes a base baffle 145.
  • the upper base body 110 is disposed on the lower base body 1 15.
  • the insertive interlocking region 140 is disposed on the upper base body 1 10.
  • the base baffle 145 is disposed on the upper portion of the insertive interlocking region 140.
  • the wide channel 120 is disposed in and extends axially through the center of the insertive interlocking region 140 and the upper base body 110.
  • the narrow channel 125 is disposed below the wide channel 120 and is in fluid connection with the wide channel 120.
  • the narrow channel 125 extends axially through the center of the upper base body 110, the lower base body 1 15, and the nozzle 150.
  • the frit 130 is disposed in the wide channel 120.
  • the dried reagents 135 are disposed on the frit 130.
  • the outer skirt 160 forms the perimeter of the lower base body 1 15 and extends along the height of the lower base body 1 15.
  • the inner skirt 165 is disposed within the outer skirt 160 and surrounds the nozzle 150.
  • the dimensions of the sensor base 100 are 15 mm x 15 mm x 22 mm.
  • the lower base body 1 15 has a height of 14 mm.
  • the upper base body 110 has a height of 6 mm and a diameter of 12 mm.
  • the insertive interlocking region 140 has a height of 2 mm and a diameter of 9 mm.
  • the base baffle 145 has a height of 1 mm.
  • the wide channel 120 has a diameter of 4.5 mm.
  • the narrow channel 125 has a diameter of 2 mm.
  • the cross-sectional area of the wide channel 120 at the frit 130 is greater than the cross-sectional area of the narrow channel 125 at the nozzle 150.
  • the frit 130 preferably contains dried reagents 135 such as analysis chemistry reagents.
  • analysis chemistry reagents may include a nucleic acid or nucleic acid enzyme. Examples of useful analysis chemistry reagents can be found in U.S. Patent Application Publication, Pub. No. 2007/0269821, entitled “LATERAL FLOW DEVICES” to Mazumdar et al. ; U.S. Patent No. 6,706,474, entitled “NUCLEIC ACID ENZYME BIOSENSORS FOR IONS" to Lu et al ; U.S. Patent No. 6,890,719, entitled “FLUORESCENCE BASED BIOSENSOR” to Lu et al ; International Publication Number WO 2009/012309, entitled "NUCLEIC ACID BASED
  • FLUORESCENT SENSOR FOR MERCURY DETECTION to Lu et al
  • U.S. Patent Application Publication, Pub. No. 2010/0151579 entitled “FLUORESCENT SENSOR FOR MERCURY” to Wang et al
  • the analysis chemistry reagents of these examples contain polynuclotides, such as nucleic acid enzymes, aptamers, aptazymes, and/or substrates; fluorophors; and quenchers.
  • the visualization species and labels are fluorescent.
  • the dried reagents 135 include one or more saccharides.
  • the saccharide may be used to preserve the analysis chemistry reagents.
  • the saccharide may be any water-soluble saccharide, including monosaccharides, disaccharides, and polysaccharides.
  • Preferable monosaccharides may include mannose, fructose, or ribose.
  • Preferable disaccharides may include trehalose, lactose, maltose, sucrose, or turanose.
  • Preferable polysaccharides may include hydroxyethylstarch, inulin, or dextran.
  • a preferred saccharide is the disaccharide trehalose.
  • the amount of saccharide present in the dried reagent is 15 to 45% by weight, including 20, 25, 30, 35 and 40% by weight.
  • Other chemicals may be present in the dried reagents, such as a buffer or salts.
  • the dried reagent should be protected from contact with skin, and should be kept dry before use.
  • the dried reagents may be prepared by mixing one or more sugars, the analysis chemistry reagents, optionally a buffer and optionally salts, and then allowing the mixture to air dry on the frit. Vacuum desiccation may then be used to further dry the dried reagents.
  • the frit typically comprises a porous material, such as a porous plastic media (e.g., polyethylene), or cellulose, having pore sizes in the range of 10 - 50 microns, in order to remove any particulates in the sample.
  • a porous material such as a porous plastic media (e.g., polyethylene), or cellulose, having pore sizes in the range of 10 - 50 microns, in order to remove any particulates in the sample.
  • the porous material of the frit may have a lower melting or degradation temperature than sensor base.
  • FIG. 2 illustrates a plan view of a sensor base 100 having aspects of the present invention.
  • the sensor base 100 includes an upper base body 110, a lower base body 115, a wide channel 120, a frit 130, and an insertive interlocking region 140.
  • the insertive interlocking region 140 includes a base baffle 145.
  • Figure 3 illustrates an opposing view to Figure 2 of a sensor base 100 having aspects of the present invention.
  • the sensor base 100 includes a lower base body 115, a narrow channel 125, a nozzle 150, an outer skirt 160, and an inner skirt 165.
  • Figure 4 illustrates an elevational view of a sensor cap 400 having aspects of the present invention.
  • the sensor cap 400 includes an upper cap body 410, a lower cap body 415, a cap channel 420, a cap baffle 430, and a receptive interlocking region 440.
  • the upper cap body 410 is disposed on the lower cap body 415.
  • the cap baffle 430 is disposed on the upper portion of the upper cap body 410.
  • the cap channel 420 is disposed in and extends axially through the center of the upper cap body 410 and the lower cap body 415. The diameter of the cap channel 420 decreases as it extends from the upper cap body 410 to the lower cap body 415.
  • the receptive interlocking region 440 is disposed in the lower portion of the lower cap body 415.
  • FIG. 5 illustrates a plan view of a sensor cap 400 having aspects of the present invention.
  • the sensor cap 400 includes an upper cap body 410, a lower cap body 415, a cap channel 420, and a cap baffle 430.
  • the cap baffle 430 includes baffle flares 435.
  • the baffle flares 435 are disposed on opposing sides of the cap baffle 430.
  • Figure 6 illustrates an opposing view to Figure 5 of a sensor cap 400 having aspects of the present invention.
  • the sensor cap 400 includes a lower cap body 415, a cap channel 420, and a receptive interlocking region 440.
  • the sensor cap 400 has a diameter of 12.5 mm and a height of 18 mm.
  • the diameter of the cap baffle 430 is 6.5 mm.
  • the diameter of the cap channel 420 is 4 mm.
  • the diameter of the cap channel 420 is 3 mm.
  • the height of the lower cap body 415 is 12 mm, while the height of the upper cap body 410 is 6 mm.
  • the diameter of the upper cap body 410 is 5.5 mm.
  • the sensor base 100 and sensor cap 400 preferably comprise a durable and inert polymeric material.
  • Preferred polymeric materials include, for example, high- density polyethylene, low-density polyethylene, polypropylene, polycarbonate, polyethylene terephthalate, and polystyrene. Fabrication of the sensor base 100 and sensor cap 400 may be accomplished, for example, with injection molding.
  • Figure 7 illustrates an elevational view of a cuvette 700 for use with the present invention.
  • the cuvette 700 includes an upper chamber 710, a lower chamber 715, cuvette opening 720, and orienting slots 730.
  • the upper chamber 710 is fluidly connected to the lower chamber 715.
  • the cuvette opening 720 is located at the upper portion of the upper chamber 710.
  • the orienting slots 730 extend vertically along front and rear faces of the cuvette 700 and are located to the right and left of the lower chamber 715.
  • the cuvette 700 is inserted into a standard fluorometer.
  • the orienting slots 730 of the cuvette 700 fit a sample compartment of the fluorometer and prevent the cuvette 700 from being inserted into the fluorometer in an incorrect orientation.
  • the dimensions of the cuvette 700 are 45 mm x 12 mm x 12 mm.
  • the width of the upper chamber 710 is 10 mm, while the width of the lower chamber 715 is 4 mm.
  • the cuvette 700 preferably comprises a transparent material. Preferred materials include polycarbonate and glass.
  • the cuvette 700 may be packaged and sold with the sensor base 100 and/or sensor cap 400, or it may be packaged and sold by itself in either individual or high quantity packaging.
  • FIG 8 illustrates a syringe 800 for use with the present invention.
  • the syringe 800 includes a barrel 810, a plunger 820, a rubber bulb 825, and a syringe tip 830.
  • the rubber bulb 825 is coupled to the end of the plunger 820.
  • the plunger 820 is slidably connected to the interior wall of the barrel 810 by the rubber bulb 825.
  • the rubber bulb 825 forms a seal with the interior wall of the barrel 810.
  • the syringe tip 830 is in fluid connection with the barrel 810.
  • the sensor cap 400 is placed on the sensor base 100.
  • the insertive interlocking region 140 of the sensor base 100 is inserted into the receptive interlocking region 440 of the sensor cap 400, mechanically coupling the sensor cap 400 to the sensor base 100 to form a sensor housing 910, illustrated in Figure 9.
  • the base baffle 145 fits securely into the receptive interlocking region 440 of the sensor cap, decreasing the incidence of fluid leakage between the sensor cap 400 and the sensor base 100.
  • the cuvette 700 is inserted into the lower base body 115 of the sensor base 100.
  • the outer skirt 160 of the sensor base 100 surrounds the perimeter of the upper chamber 710 of the cuvette 700, while the inner skirt 165 and the nozzle 150 of the sensor base 100 are disposed within the cuvette opening 720 of the upper chamber 710.
  • the sensor cap 400, sensor base 100, and cuvette 700 are in fluid connection.
  • a fluid sample is first collected by the syringe 800, typically about 1 ml.
  • additional sample conditioning or preparation may be used, such as using an EPA protocol to obtain a sample of lead paint, or adding a buffering agent to adjust pH, and/or salts, which may be provided in a sample tube or calibration tube.
  • the syringe tip 830 is inserted into the cap channel 420 of the sensor cap 400.
  • the syringe tip 830 fits tightly into the cap channel 420 of the sensor cap 400 so as to decrease the incidence of fluid leakage.
  • the fluid sample and the re-hydrated reagents then flow into the narrow channel 125, out of the nozzle 150, through the upper chamber 710 of the cuvette 700, and into the lower chamber 715 of the cuvette 700.
  • the nozzle 150 is designed to accelerate the sample fluid through the sensor housing 910 and into the cuvette 700. Such acceleration aids in mixing the sample fluid with the reagents.
  • FIG. 9 illustrates a kit 900 having aspects of the present invention.
  • the kit 900 includes a box 910, which contains a first bag 920 and a second bag 922.
  • the first bag 920 contains a plurality of black bags 924, a plurality of sample tubes 940, and a plurality of syringes 800.
  • Each black bag 924 in the first bag 920 contains a sensor housing 930, a cuvette 700, and a desiccant (not shown in Figure 9).
  • Each sensor housing 930 includes a sensor base 100 and a sensor cap 400.
  • the second bag 922 contains three black bags 924, three sample tubes 940, three calibration tubes 950, and three syringes 800.
  • Each black bag 924 in the second bag 922 contains a calibration sensor 935, a cuvette 700, and a desiccant (not shown in Figure 9).
  • the calibration sensor 935 includes a sensor base 100 and a sensor cap 400.
  • each black bag 924 blocks light from impinging upon the sensor housings 930 and/or calibration sensors 935.
  • the calibration sensor 935 may be provided with a calibration tube 950, which may containing a buffer and a known amount of the analyte of interest, for example lead with a buffer for pH 7, or U02 2+ with a buffer for pH 5, and is used to calibrate a fluorometer.
  • a sample tube 940 may be provided with each sensor housing 930, and also may contain a buffer.
  • Other agents that may also be provided in the calibration and/or sample tube include salts, and organic chelators.
  • the reagents present in the sample tube and/or calibration tube may be present in liquid form as a solution, or as a dry pellet or powders.
  • the dried reagent on the frit of the calibration sensor 935 may also include additional buffer to compensate for acidity of the calibration amount of analyte.
  • biological buffers include MES, HEPES, Tris, MOPS etc.
  • salts include sodium chloride, potassium chloride, ammonium chloride, magnesium chloride, calcium chloride etc.
  • a calibration standard could also be provided as a solution in a bottle, or in an ampoule.
  • the sensor housings 930 may be sold and/or distributed in bulk. For example, a plurality of sensor housings 930 may be distributed in bags which contain twenty-five, fifty, or one hundred sensor housings 930. Alternatively, the sensor bases 100 and sensor caps 400 of the sensor housings 930 may be distributed separately. The sensor base and the sensor cap may be snapped together, or ultras onically welded together, to help minimize any leakage.
  • An example of a kit is a box, containing sensor housings, calibration sensor housing, syringes, sample tubes, calibration tubes, and cuvettes. The sensor housings may each be packaged in a bag, such as a black bag that keeps out light, along with a cuvette, and a desiccant.
  • the calibration sensor housings may each be packaged in a bag, such as a black bag that keeps out light, along with a cuvette, and a desiccant.
  • the bags of calibration sensor housing may be packed into a larger bag, which contain calibration tubes and syringes for use with the calibration sensors.
  • the bags of sensor housing may similarly be packed into a larger bag, which contains sample tubes and syringes for use with the sensors.
  • the calibration and sample tubes may be 5 ml or 20 ml tubes, for example.
  • the sensor housings 930 may be color-coded to signify the analyte which they are capable of detecting.
  • sensor housings 930 are color-coded to correspond to selected analytes, such as green for lead, orange for uranium, blue for copper, etc., with darker or lighter corresponding colors utilized for the sensor housings 930 used in the corresponding calibration of the selected analyte.
  • the calibration sensor 935 for a particular analyte is colored a different shade than the sensor housings 930.
  • the bag contains a transparent desiccant pouch which should be discarded. Place the plastic cuvette in the instrument, and then place the sensor housing on the cuvette. Collect test water in a clean cup, then slowly pour the test water into the provided sample tube containing liquid buffer up to the 5 mL mark. Close the cap tightly and mix well by shaking. Next, draw 1 ml of water from the sample tube into a syringe. Attach the syringe to the housing over the cuvette in the instrument. Squeeze water through housing into the cuvette, then quickly remove the housing and syringe, close the sample chamber door of the instrument.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

La présente invention concerne un capteur qui comprend un boîtier de capteur, ayant un canal ; un substrat poreux, dans le canal ; un réactif de chimie analytique, sur le substrat poreux ; et une buse en raccordement fluidique avec le canal. Le substrat poreux remplit une section transversale du canal, et l'aire de section transversale du canal au niveau du substrat poreux est supérieure à l'aire de section transversale au niveau de la buse.
PCT/US2011/042357 2010-07-19 2011-06-29 Boîtier de capteur et chimie de réactif WO2012012174A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/838,740 US8951472B2 (en) 2010-07-19 2010-07-19 Portable fluorimetric apparatus, method and system
US12/838,762 US8815156B2 (en) 2010-07-19 2010-07-19 Sensor housing and reagent chemistry
US12/838,762 2010-07-19
US12/838,740 2010-07-19

Publications (1)

Publication Number Publication Date
WO2012012174A1 true WO2012012174A1 (fr) 2012-01-26

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PCT/US2011/042357 WO2012012174A1 (fr) 2010-07-19 2011-06-29 Boîtier de capteur et chimie de réactif
PCT/US2011/042343 WO2012012171A1 (fr) 2010-07-19 2011-06-29 Appareil fluorimétrique portable, et procédé et système

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PCT/US2011/042343 WO2012012171A1 (fr) 2010-07-19 2011-06-29 Appareil fluorimétrique portable, et procédé et système

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022173430A1 (fr) * 2021-02-10 2022-08-18 Robert Bosch Gmbh Système optique pour la détection d'analytes
WO2022173432A1 (fr) * 2021-02-10 2022-08-18 Aquaeasy Pte. Ltd. Système optique pour la détection d'analytes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6075087B2 (ja) * 2013-01-28 2017-02-08 ウシオ電機株式会社 蛍光光度計点検方法、点検用試薬容器及び蛍光光度計

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434235A (en) * 1981-01-21 1984-02-28 Ben Gurion University Of The Negev Research And Development Authority Method and apparatus for detecting nitrite ions in fluids
US5830344A (en) * 1995-02-22 1998-11-03 Environmental Technologies Group, Inc. Disposable sensor for metal analysis and method of using same
US20040161778A1 (en) * 2000-06-27 2004-08-19 Board Of Trustees Of The University Of Illinois Nucleic acid enzyme biosensors for ions
US20070189923A1 (en) * 2006-02-09 2007-08-16 Markus Lenhard Device for chemical analysis of sample components
US20090004753A1 (en) * 2007-01-30 2009-01-01 Invitrogen Corporation Labeling reagents and methods of their use
US20090181451A1 (en) * 2004-01-28 2009-07-16 Bamburgh Marrsh Llc Specimen sample collection device and test system
US20100151579A1 (en) * 2008-10-10 2010-06-17 Zidong Wang Fluorescent sensor for mercury

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100437020C (zh) * 2003-07-18 2008-11-26 凯米映像公司 多波长成像光谱仪的方法和装置
US7459713B2 (en) * 2003-08-14 2008-12-02 Microptix Technologies, Llc Integrated sensing system approach for handheld spectral measurements having a disposable sample handling apparatus
US6999173B2 (en) * 2003-09-25 2006-02-14 Ffa Sciences Llc Method and apparatus for ratio fluorometry
US7660678B2 (en) * 2004-02-05 2010-02-09 Medpro Holdings, Llc On-site method of providing analysis of potency and purity of pharmaceutical compounds
WO2005111586A1 (fr) * 2004-05-13 2005-11-24 As Laser Diagnostic Instruments Dispositif portable et procede de detection et de quantification de medicaments sur place
JP5102583B2 (ja) * 2007-11-12 2012-12-19 シスメックス株式会社 分析装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434235A (en) * 1981-01-21 1984-02-28 Ben Gurion University Of The Negev Research And Development Authority Method and apparatus for detecting nitrite ions in fluids
US5830344A (en) * 1995-02-22 1998-11-03 Environmental Technologies Group, Inc. Disposable sensor for metal analysis and method of using same
US20040161778A1 (en) * 2000-06-27 2004-08-19 Board Of Trustees Of The University Of Illinois Nucleic acid enzyme biosensors for ions
US20090181451A1 (en) * 2004-01-28 2009-07-16 Bamburgh Marrsh Llc Specimen sample collection device and test system
US20070189923A1 (en) * 2006-02-09 2007-08-16 Markus Lenhard Device for chemical analysis of sample components
US20090004753A1 (en) * 2007-01-30 2009-01-01 Invitrogen Corporation Labeling reagents and methods of their use
US20100151579A1 (en) * 2008-10-10 2010-06-17 Zidong Wang Fluorescent sensor for mercury

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022173430A1 (fr) * 2021-02-10 2022-08-18 Robert Bosch Gmbh Système optique pour la détection d'analytes
WO2022173432A1 (fr) * 2021-02-10 2022-08-18 Aquaeasy Pte. Ltd. Système optique pour la détection d'analytes

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