WO2004038424A1 - 分析用具における液成分の温調方法、分析用具、および分析装置 - Google Patents
分析用具における液成分の温調方法、分析用具、および分析装置 Download PDFInfo
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- WO2004038424A1 WO2004038424A1 PCT/JP2003/013670 JP0313670W WO2004038424A1 WO 2004038424 A1 WO2004038424 A1 WO 2004038424A1 JP 0313670 W JP0313670 W JP 0313670W WO 2004038424 A1 WO2004038424 A1 WO 2004038424A1
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- Prior art keywords
- liquid component
- temperature
- magnetic field
- analysis tool
- analytical
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Classifications
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- 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
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502715—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by interfacing components, e.g. fluidic, electrical, optical or mechanical interfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/447—Systems using electrophoresis
- G01N27/44704—Details; Accessories
- G01N27/44717—Arrangements for investigating the separated zones, e.g. localising zones
- G01N27/44734—Arrangements for investigating the separated zones, e.g. localising zones by thermal means
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- 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
- G01N2035/00346—Heating or cooling arrangements
- G01N2035/00356—Holding samples at elevated temperature (incubation)
- G01N2035/00415—Other radiation
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- 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
- Y10T436/11—Automated chemical analysis
- Y10T436/115831—Condition or time responsive
Definitions
- the present invention relates to an analysis tool used for analyzing a sample, and to a technique for adjusting a liquid component contained in the analysis tool for the purpose.
- a method of analyzing a sample for example, there is a method of analyzing a reaction solution obtained by reacting a sample with a reagent by an optical method.
- Such an analysis is performed, for example, by attaching an analysis tool that provides a reaction field to an analyzer configured with an optical system capable of irradiating and receiving light (for example, Japanese Patent Application Laid-Open No. H08-114539). reference).
- an analysis tool for example, Japanese Patent Application Laid-Open No. H08-114539. reference.
- it is necessary to adjust the analysis tool especially reaction 3 ⁇ 4 so that the sample and reagent react almost identically for each measurement. preferable.
- the temperature dependence of the reaction rate is large, so it is preferable to adjust the S ⁇ of the system to, for example, the target 1 ⁇ 2 ⁇ 0.1 ° C.
- the analysis tool 9 is held on a heat block 91 having a larger heat capacity than the reaction solution 90, and the heat block 91 is controlled by There is a method of adjusting the reaction solution 90 (see, for example, JP-A-9-189703 and JP-A-10-253536).
- the temperature of the reaction solution 90 is monitored by a sensor 92 embedded in a heat block 91, and the value of the reaction solution 90 becomes smaller than a predetermined value.
- the reaction solution 90 is heated through the heat block 91.
- FIG. 9B there is a method in which the analysis tool 9 is held on a high-temperature heating element 93 having a temperature tracking property and the reaction element 90 is directly adjusted by the heating element 93 (for example, in Japan). See JP-A-9-304269). Also in this method, the heating element 93 is appropriately driven according to the monitoring result of the sensor 92, and the temperature of the reaction solution 90 is adjusted. In these adjustment methods, a heat block 91 is added when the temperature of the reaction solution 90 is increased.
- the conventional 3 ⁇ 4 adjustment method had the disadvantage of high power consumption. Therefore, it is difficult to apply the conventional 3 ⁇ 4 adjustment method to an analyzer that is driven by an internal temporary source such as a small battery (for example, a battery widely used in homes). Even when applied to a small analyzer, the actual working time of the analyzer becomes extremely short, which is not practical. On the other hand, in order to improve the shortening of the actual operation time, it is sufficient to increase the capacity of the internal Kasumihara, but this is because the miniaturization of the analyzer is hindered and the portability is reduced. I will. In addition, power may be supplied from an external source, but in that case, an adapter is required to connect the weighing device to an external power source, which deteriorates portability and is inconvenient for use on the go. It becomes. Disclosure of the invention
- An object of the present invention is to make it possible to adjust a liquid component held in an analysis tool to a target value with a small power consumption without increasing the size of the analyzer.
- a method for adjusting a liquid component held in an analysis tool for the purpose, wherein the temperature of the liquid component is increased A method for controlling the temperature of the liquid component in the analytical tool, which supplies the thermal energy generated by passing the liquid component to the liquid component, is common.
- an analysis tool used for analyzing a sample including a heat generating layer that generates heat by passing magnetic lines of force.
- the temperature rise of the liquid component using this analysis tool is performed using thermal energy when the heat generating layer is heated.
- the heating layer is formed, for example, as a metal thin film.
- a material for forming the metal thin film typically, aluminum, nickel, copper, iron, and stainless steel can be exemplified.
- the thickness of the metal thin film is formed to be, for example, 1 to 200 ⁇ m. This is because when the thickness of the metal thin film is unreasonably large, the metal thin film cannot generate heat energy properly due to the low resistance of the metal thin film. On the other hand, if the resistance of the metal thin film increases, the metal thin film melts and it is difficult to supply the desired thermal energy to the liquid components.
- the heat generating layer may be formed of a conductive resin material.
- a conductive resin material for example, an insulating resin obtained by dispersing a conductive filler into a conductive material to impart conductivity, and a conductive polymer having a conductive property per se, such as a deviation or a deviation, can be used.
- the conductive polymer include polyacetylene, polypyrroline, polythiophene, polyaniline, polyisothianaphthene, polyazulene, poly-; P-phenylene, poly-P-phenylenevinylene, poly-2,5 -Chenylene vinylene or polyperinaphthalene can be exemplified. Even in the case where the heat generating layer is formed of a conductive resin material, the thickness of the heat generating layer is set to a range in which heat energy can be appropriately supplied to the liquid component, similarly to the metal thin film.
- the heat-generating layer is formed by directly forming a film on the components of the analytical tool, or by applying a material to a sheet and then attaching a sheet material to the above-mentioned components, or fitting it into a concave portion of the above-mentioned components.
- Examples of the method for forming the heat generating layer include vapor deposition, sputtering, and CVD. These techniques are useful when using aluminum, Eckel or copper as the metal material.
- the analysis tool of the present invention can be configured as having, for example, a reaction section for reacting a sample with a reagent. In this case, it is preferable to raise the temperature of the liquid component at least for the liquid component in the reaction section.
- a heating layer is formed at a position where thermal energy can be supplied to the liquid components present in the reaction section. Is preferred. More specifically, the heat generating layer is formed at a position covering the periphery of the reaction part, a position covering the reaction part, or inside the reaction part.
- the temperature control of the liquid component can be performed by, for example, monitoring the temperature of the liquid component, feeding back the monitoring result, and repeatedly controlling the state of the magnetic flux passing through the analysis tool.
- the temperature control of the liquid component is determined in advance by examining the relationship between the environment around the liquid component and the passing state of the magnetic field lines in the analytical instrument required to raise the temperature of the liquid component to the target temperature. Based on the above relationship, the control amount required to achieve the target state of passage of the magnetic field lines is determined based on the above relation, and the control is performed by controlling the passage state of the magnetic field lines in the analysis tool according to the control amount.
- the analysis of the sample is performed using an analysis tool holding the sample, and the composition of the liquid component held in the analysis tool can be adjusted.
- An analyzer having a temperature control function which is provided with a magnetic field generating coil for generating magnetic field lines to be passed through the analysis tool, is provided.
- the analyzer includes a measuring unit for measuring the environment of the liquid component or the environment around the liquid component, and for controlling the generation state of the magnetic field lines in the magnetic field generating coil based on the measurement result of the measuring unit. It is preferable that the control means and the control means are further provided.
- the analyzer is configured to further include, for example, an AC TO applying means for generating a magnetic field line with respect to the magnetic field generating coil.
- the ⁇ ⁇ control means controls the generation state of the magnetic field lines in the magnetic field line generating coil by controlling the AC applying means. More specifically, the control means controls the strength of the magnetic field lines (the effective voltage of the AC voltage [3 ⁇ 4, the period when the direction of the magnetic field lines is repeatedly changed (frequency of application), and the transit time of the magnetic field lines (application of AC voltage). This controls the state of generation of the magnetic field lines in the magnetic field generating coil, and thus the amount of heat generated when the magnetic field lines pass through the analysis tool, and finally controls the amount of heat energy to be transmitted to the liquid component Will be able to
- the present invention provides a method for controlling the temperature of a liquid component of a microdevice for analyzing a minute amount of sample.
- the “trace sample” refers to a sample of 100 / L or less. .
- the “liquid component” in the present invention refers to a liquid held in an analytical tool and having a temperature control of 3 ⁇ 4 ⁇ ⁇ , and unless otherwise specified, a liquid present in the analytical tool. Some of them are ⁇ and some are 1 ⁇ .
- a liquid present in the analytical tool Some of them are ⁇ and some are 1 ⁇ .
- liquids, liquids, and any of these reaction liquids are insects i ⁇ ⁇ , or more than one of them is ⁇ ⁇ 3 ⁇ 4 ⁇ .
- the reaction solution existing in a specific area is included.
- FIG. 1 is a schematic diagram showing a schematic configuration of an example of the analyzer according to the present invention.
- FIG. 2 is an overall perspective view showing an example of the microphone port device according to the present invention.
- FIG. 3 is a cross-sectional view taken along the line — in FIG.
- FIG. 4A to 4D are cross-sectional views of main parts showing another example of the installation site of the heat generating layer.
- FIG. 5 is an overall perspective view showing the analysis tool according to the second embodiment.
- FIG. 6A and FIG. 6B are general perspective views showing the analysis tools according to the third and fourth embodiments.
- FIG. 7 is an overall perspective view showing the analysis tool according to the fifth embodiment.
- FIG. 8 is a sectional view taken along the line M-VDI of FIG.
- FIG. 9A and FIG. 9B are cross-sectional views showing main parts of an analyzer for explaining a conventional temperature control method.
- the analyzer X shown in Fig. 1 is used for analyzing samples using the analysis tool 1. It has a function and a temperature control function for adjusting the fig of the liquid component 10 held in the measuring part IICb of the analytical tool 1.
- the analyzer X consists of a mounting unit 20, a temperature measuring unit 21, a control amount calculating unit 22, a magnetic field line generating coil 23, an AC voltage applying unit 24, a light source unit 25, a light receiving unit 26, and a concentration calculating unit.
- a unit 27 and a control unit 28 are provided.
- the mounting section 20 is for holding the analysis tool 1.
- the measuring section 21 is embedded in the mounting section 20.
- the measurement unit 21 is arranged so as to be located in a region immediately below the liquid component 10 (measurement unit IICb) held by the analysis tool 1 when the analysis tool 1 is mounted on the mounting unit 20. As a result, although measured in the measuring section 21, the value becomes closer to that of the actual liquid component 10.
- a thermistor-thermocouple can be used.
- a worm-type meter such as a radiometer, may be used.
- the control amount calculation unit 22 calculates the amount of energy to be applied to the liquid component 10 based on the measurement result of the measurement unit 21 and calculates the control amount for the AC / DC application unit 24. is there.
- the magnetic field generating coil 23 is for generating magnetic field lines to be passed through the analysis tool 1.
- the AC 3 ⁇ 4! Applying unit 24 is for applying ⁇ to the magnetic flux generating coil 23.
- the AC flff applying unit 24 a unit capable of applying an AC having a frequency selected from a range of, for example, 40 to 200 kHz is used.
- magnetic field lines are generated by applying E by the AC applying unit 24.
- the state of the lines of magnetic force generated in the lines of magnetic force generating coil 23 can be controlled by the state of application of to the lines of magnetic force generating coil 23.
- the magnetic flux in the magnetic flux generating coil 23 is controlled.
- the state of occurrence can be controlled.
- the light source unit 25 is for irradiating the liquid component 10 (the measuring unit IICb) with light.
- the light receiving section 26 is for receiving the reflected light from the liquid component 10.
- the light source unit 25 is composed of, for example, a mercury lamp and a white LED. In order to use these light sources, although not shown in the drawing, the light from the light source unit 25 is incident on the filter, and then the liquid component 10 is irradiated with the light. This is because, in the filter, This is for selecting light having a wavelength according to the light absorption characteristics of the component to be analyzed.
- the light receiving section 26 is constituted by, for example, a photodiode.
- the concentration calculator 27 is for calculating the concentration of the sample liquid based on the light reception result in the light receiver 26.
- the density calculation is performed by, for example, calculating the reflectance based on the light reception result in the light receiving unit 26 and applying the previously calculated reflectance to a curve indicating the relationship between the reflectance and the density.
- the control unit 28 controls the AC mm application unit 24 based on the control amount calculated by the control amount calculation unit 22 to control the generation state of the magnetic field lines in the magnetic field line generating coil 23. Things.
- the control unit 28 further selects the light irradiation state and the non-irradiation state of the light source unit 25, and controls the operations of the control amount calculation unit 22 and the density calculation unit 27.
- the control amount calculation unit 22, the concentration calculation unit 27, and the control unit 28 can be configured by, for example, a CPU, a ROM, and a RAM.
- the program stored in the ROM As a result, the control force of the AC applying unit 24 is performed, and the state of generation of the magnetic field lines in the magnetic field generating coil 23 is controlled.
- the analytical tool 1 shown in these figures is configured as a so-called micro device.
- the analysis tool 1 has a common reaction field, and has a form in which a force par 13 is laminated on a substrate 12 on which a flow channel 11 is formed so as to cover the flow channel 11.
- the channel 11 has a sample introduction section 11 #, a reagent introduction section 11B, and a reaction channel section 11C.
- the sample introduction section 11A and the reagent introduction section 11B are connected to the end IIc of the reaction channel section 11C.
- the entirety of the reaction channel portion 11C is bent in a bellows shape, and is designed so that the channel length becomes large.
- the reaction channel section 11C is provided with a measurement section IICb to which light from the light source section 25 is irradiated (see FIG. 1).
- the cover 13 has a sample inlet 13a, a reagent inlet 13b, and an air vent 13c.
- the sample introduction port 13a is located at the end llAa of the sample introduction section 11A
- the reagent introduction section 13 ID is located at the darkened IBa of the reagent introduction section 11B
- the air vent hole 13c is located at the reaction channel section 11. It is formed at a site corresponding to the end llCc.
- Heating layer 14 Is formed.
- the heat generating layer 14 generates heat by an induced current generated by passing the magnetic field lines generated by the magnetic field generating coil 23 (see FIG. 1), and has a through hole 14a.
- the through hole 14a irradiates the light from the light source unit 25 (see Fig. 1) to the measuring unit UCb, and the reflected light from the measuring unit UCb can be received by the light receiving unit 26 (see Fig. 1).
- the heat generating layer 14 is provided just above the measuring unit IICb so as to cover the peripheral portion and the peripheral portion of the measuring unit UCb. Due to such an arrangement of the heat generating layer 14, the heat energy generated in the heat generating layer 14 can be efficiently transmitted to the liquid component 10 of the measurement unit IICb.
- the heat-generating layer 14 is formed to have a thickness of! ⁇ 200 ⁇ by, for example, forming a film by a method such as vapor deposition, sputtering, or plating so that the heat generating layer 14 can properly exhibit its function. You.
- the heat generating layer 14 can also be formed by attaching a sheet material formed of a metal material to the surface of the cover 13. Examples of the metal material used for this include aluminum, nickel and copper, as well as iron and stainless steel.
- the heat generating layer 14 can also be formed of a conductive resin material. '
- a device that mixes and reacts two solutions of a sample and a reagent, but a microdevice that mixes three or more solutions can be used.
- a plurality of flow paths may be formed so that a plurality of reaction systems can be constructed.
- the sample is introduced into the analysis tool 1 by the force of the sample introduction port 13a, and the reagent is introduced by the reagent inlet 13b.
- These samples and reagents respectively move in the sample introduction part 11A and the reagent introduction part 11B by the capillary phenomenon, and merge in the reaction channel part 11C.
- the sample and the reagent start a reaction.
- the sample and the reagent further move through the reaction channel section 11C toward the air vent hole 13c by capillary action while further proceeding the reaction, and finally reach the measurement section UCb.
- the value of the reaction solution (liquid component 10) that has reached the measuring section UCb is measured over time.
- the measurement result is sent to the control amount calculation unit 22 and is used as a basis for calculating the control amount.
- the purpose of the liquid component 10 is compared with the actual measurement, and the measurement & g is lower than the purpose, and the control &
- the control quantity is calculated.
- the calculation of the control amount is performed, for example, by applying the measurement 3 ⁇ 4it (or the difference between the objective and the measurement ⁇ ) to a predetermined arithmetic expression. This calculation result is sent to the control unit 28.
- the control unit 28 controls the AC voltage application unit 24 according to the calculation result of the control amount calculation unit 22, and controls the state of magnetic flux generation in the magnetic flux generating coil 23.
- the lines of magnetic force pass through the heat generating layer 14 to cause the heat generating layer 14 to generate heat.
- the control unit 28 controls the AC power applying unit 24 so that the measurement is higher than the intended purpose, and in the meantime, the magnetic field line generating coil 23 is not applied.
- Such control of the AC applying unit 24 and control of the state of the magnetic field lines in the magnetic force generating coil 23 are repeatedly performed by feeding back the measurement result in the measuring unit 21, and the ⁇ i of the liquid component 10 is changed. It is kept almost constant.
- the temperature of the liquid component 10 may be adjusted based on the ambient temperature after measuring the environment around the liquid component 10. More specifically, first, the relationship between the environmental temperature and the amount of control on the magnetic field generating coil 23 (the AC voltage applying unit 24) required to raise the temperature of the liquid component 10 to a target temperature is previously checked. . This relationship is stored in, for example, the control amount calculating unit 22 after being tabulated. Then, based on the measured environment and the above relationship, a control amount (control amount for the alternating current application unit 24) required to achieve the target state of passage of the lines of magnetic force is determined, and this control amount is determined. This is performed by controlling the state of passage of the lines of magnetic force in the heating layer 14 accordingly. In this method, for example, the measurement result of the collar border ⁇ may be fed back to control the AC caro unit 24 repeatedly without using a single control.
- the temperature of the liquid component 10 is raised by utilizing the thermal energy generated when an induced current is generated in the heat generating layer 14. Therefore, in the present invention, since the liquid component 10 can be intensively heated, the utilization efficiency of the supply energy is increased. Moreover, since the heat generating layer 14 can be provided close to the liquid component 10, heat energy is efficiently transmitted from the heat generating layer 14 to the liquid component 10. be able to. From this point, it can be said that the efficiency of using supplied energy can be improved. Therefore, according to the present invention, it is possible to reduce power consumption required for temperature control.
- the AC applying unit 24 is configured to include a small battery used as an internal source, it is possible to sufficiently raise the temperature of the liquid component 10 without significantly shrinking the battery. it can. Therefore, even with the small analyzer X, the temperature of the liquid component 10 can be controlled using the internal raw material without increasing the size of the analyzer. And if it becomes possible to deal with the internal impulse, there is no need to connect to an external power supply, and the adapter will not be an essential item. Therefore, when carrying the analyzer X, it is not necessary to carry an adapter, thereby improving portability.
- the present invention is not limited to the above-described embodiment, and various design changes can be made.
- an analysis apparatus configured to perform analysis based on reflected light when light is applied to a liquid component
- the present invention analyzes a liquid component based on transmitted light.
- the present invention is also applicable to an analysis tool and an analyzer configured to perform the above. Not only the liquid component of the measuring section UCb but also or instead of this, the sample introducing section 11A, the reagent introducing section 11B, and the reaction channel section 11C (excluding the measuring section UCb)
- the temperature of the liquid component in at least one of the components may be adjusted.
- the force provided on the upper surface of the cover 13 so that the heating layer 14 is located directly above the measurement part IICb (liquid component) is shown in FIG.
- the heat generating layer 14A may be provided on the lower surface of the substrate 12 so as to be located immediately below the measuring unit UCb (liquid component).
- a heat generating layer 14B is provided on the lower surface of the cover 13 at a position facing the measurement part IICb
- a heat generation layer 14C is provided on the bottom surface of the measurement part IICb on the substrate 12.
- the heat generating layer 14D may be provided so as to fit into the through hole 13d formed in the cover 13.
- the cover 13 may be formed of a conductor or a resistor, and the cover 13 itself may function as a heating element.
- the installation site of the magnetic field generating coil is not limited to below the analysis tool 1 shown in FIG. 1, but may be installed at other sites.
- the force line generating coil 23 may be arranged so as to be located above the analysis tool 1.
- the heating eyebrows 14 may be provided on the analyzer X, for example, on the mounting unit 20.
- the analysis tool 3 shown in FIG. 5 does not supply a reagent to the analysis tool 3 from the outside, but uses the analysis tool 3 to hold a reagent in advance as the reagent unit 30.
- a measuring section 32 is provided in the middle of the flow path 31, a reagent section 30 is held in the measuring section 32, and a heat generating layer 33 is provided just above the measuring section 32 so as to spread. Let's do.
- the analysis tool 3 is configured such that the sample introduced from the sample introduction port 34 moves toward the air vent hole 35 by capillary action, and the sample is supplied to the measurement unit 32.
- the reagent is dissolved by 30 S by supplying the sample, and a liquid phase reaction system is established.
- the heat energy generated in the heating layer 33 can be supplied to the heating layer 33 by passing the lines of magnetic force through the heating layer 33. .
- the analytical tool 4 shown in FIG. 6A is configured to move a sample and a drug by electrophoresis.
- two flow paths 40 and 41 are provided so as to intersect, and a film 45 is attached so as to cover the flow paths 40 and 41.
- Each flow path 40, 41 is filled with an electrophoresis buffer, and during analysis, a potential difference is applied to both ends of each flow path 40, 41, and the sample introduced from the inlet 42 reacts in the flow path 41. While moving, the flow path 41 is moved toward the measurement section 43.
- a heating layer 44 is provided immediately above the measuring section 43. Also in this analysis tool 4, the temperature of the liquid component held in the measuring section 43 can be increased by causing the heat generating layer 44 to generate heat using the lines of magnetic force.
- the analysis tool 5 shown in FIG. 6B is configured to move a sample by the power of an external pump.
- the sample introduction part 50, the reaction part (measurement part) 51, the waste liquid storage part 52 and the suction part 53 are formed side by side with the force S so that they are located immediately above the reaction part (measurement part) 51.
- a heating layer 54 is provided.
- the suction part 53 is connected to an external pump, and is driven by the power of the pump.
- the sample is moved.
- the analysis tool may be configured such that a microphone port pump having a built-in piezoelectric element or the like is built in so that a sample or the like is moved by the microphone port pump.
- the heat generating layers 44, 54 are formed not only directly above the measuring parts 43, 51, but also so as to cover the entire part where the liquid component force S is held, so that the temperature of the entire liquid component is controlled. You can.
- the analytical tool 6 shown in FIGS. 7 and 8 is configured to analyze a sample by an electrochemical method.
- the analytical tool 6 has a substrate 60 on which a cavity 60 a is provided.
- the cavity 60a is formed by stacking a cover 62 having an opening 62a on a substrate 60 via a spacer 61 provided with a slit 61a.
- the cover 62 is provided with a heating layer 68 so as to be located immediately above the cabillary 60.
- a sample liquid inlet 63 is set in Experiment 15, and a solid reagent 67 is held therein.
- the sample liquid introduced from the sample liquid inlet 63 flows through the capillary 60a toward the opening 62a by capillary action while dissolving the reagent 67.
- a working electrode 64 as a measuring device, a counter electrode 65, and a pair of detection electrodes 66 are provided on the substrate 60.
- the analyzer has measurement terminals 7a and 7b and detection terminals 7c and 7d for contacting the electrodes 64 to 66, respectively.
- the terminals 7 b and 7 d are connected to the ground, while the terminals 7 a and 7 c are connectable to the daigen 70.
- a reaction system is also constructed in the cavity 60a, but heat energy generated by passing the lines of magnetic force to the heating layer 68 is supplied to the reaction system. By doing so, the temperature of the reaction system can be increased and the temperature of the reaction system can be controlled.
- the heat generation layer 68 can be omitted, and the electrodes 64 to 66 can be heated by passing the lines of magnetic force through the comfort lines 64 to 66, thereby raising the temperature of the liquid component.
- the analysis tool 6 and the analyzer corresponding thereto shown in FIGS. 7 and 8 are examples, and the present invention is applicable to the case where a sample is analyzed using an electrochemical method with another configuration. The invention is applicable.
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03758906.6A EP1557672B1 (en) | 2002-10-28 | 2003-10-24 | Temperature control method for liquid components in analyzing instrument, the analyzing instrument, and analyzing apparatus |
CN200380102259.7A CN1708690B (zh) | 2002-10-28 | 2003-10-24 | 分析用具的液体成分的调温方法、分析用具以及分析装置 |
US10/532,871 US20060073600A1 (en) | 2002-10-28 | 2003-10-24 | Temperature control method for liquid components in analyzing instrument, the analyzing instrument and analyzing apparatus |
AU2003275667A AU2003275667A1 (en) | 2002-10-28 | 2003-10-24 | Temperature control method for liquid components in analyzing instrument, the analyzing instrument, and analyzing apparatus |
US12/537,080 US8409522B2 (en) | 2002-10-28 | 2009-08-06 | Analyzing instrument, temperature control method for liquid in analyzing instrument, and analyzing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002312963A JP4009684B2 (ja) | 2002-10-28 | 2002-10-28 | 分析用具における液成分の温調方法、および分析用具 |
JP2002-312963 | 2002-10-28 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10532871 A-371-Of-International | 2003-10-24 | ||
US12/537,080 Division US8409522B2 (en) | 2002-10-28 | 2009-08-06 | Analyzing instrument, temperature control method for liquid in analyzing instrument, and analyzing apparatus |
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PCT/JP2003/013670 WO2004038424A1 (ja) | 2002-10-28 | 2003-10-24 | 分析用具における液成分の温調方法、分析用具、および分析装置 |
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US (2) | US20060073600A1 (ja) |
EP (1) | EP1557672B1 (ja) |
JP (1) | JP4009684B2 (ja) |
CN (1) | CN1708690B (ja) |
AU (1) | AU2003275667A1 (ja) |
WO (1) | WO2004038424A1 (ja) |
Families Citing this family (10)
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CN101031801B (zh) | 2004-09-30 | 2010-12-01 | 爱科来株式会社 | 薄膜加热器和分析用具 |
JP2006242613A (ja) * | 2005-03-01 | 2006-09-14 | Matsushita Electric Ind Co Ltd | 試料分析装置 |
JP2008139246A (ja) * | 2006-12-05 | 2008-06-19 | Tokai Hit:Kk | マイクロチップ、マイクロチップ通電ユニット |
GB0715170D0 (en) | 2007-08-03 | 2007-09-12 | Enigma Diagnostics Ltd | Reaction vessel |
JP4762303B2 (ja) * | 2008-12-25 | 2011-08-31 | シャープ株式会社 | マイクロ分析チップ |
JP5116864B2 (ja) * | 2011-06-15 | 2013-01-09 | シャープ株式会社 | マイクロ分析チップ |
EP3463662B1 (en) * | 2016-05-23 | 2024-01-31 | Siemens Healthineers Nederland B.V. | Device for use in fluid sample analysis |
EP3381547A1 (en) * | 2017-03-30 | 2018-10-03 | Canon Medical Systems Corporation | Specimen test apparatus |
CN111893034A (zh) * | 2019-12-12 | 2020-11-06 | 山东鑫科生物科技股份有限公司 | 具有传导加热机构的细菌计数装置 |
CN114669338B (zh) * | 2022-04-15 | 2023-05-12 | 扬州大学 | 一种基于尿液检测疾病的微流控芯片 |
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Also Published As
Publication number | Publication date |
---|---|
CN1708690B (zh) | 2010-06-09 |
EP1557672A1 (en) | 2005-07-27 |
JP2004150805A (ja) | 2004-05-27 |
US20090297402A1 (en) | 2009-12-03 |
EP1557672B1 (en) | 2014-02-19 |
EP1557672A4 (en) | 2006-05-03 |
AU2003275667A1 (en) | 2004-05-13 |
US8409522B2 (en) | 2013-04-02 |
JP4009684B2 (ja) | 2007-11-21 |
CN1708690A (zh) | 2005-12-14 |
US20060073600A1 (en) | 2006-04-06 |
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