WO2006064952A1 - 成分測定装置 - Google Patents
成分測定装置 Download PDFInfo
- Publication number
- WO2006064952A1 WO2006064952A1 PCT/JP2005/023418 JP2005023418W WO2006064952A1 WO 2006064952 A1 WO2006064952 A1 WO 2006064952A1 JP 2005023418 W JP2005023418 W JP 2005023418W WO 2006064952 A1 WO2006064952 A1 WO 2006064952A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crystal
- quartz
- component
- measuring device
- sensor
- Prior art date
Links
- 239000010453 quartz Substances 0.000 claims abstract description 60
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000005259 measurement Methods 0.000 claims abstract description 38
- 239000012488 sample solution Substances 0.000 claims abstract description 35
- 230000010355 oscillation Effects 0.000 claims abstract description 24
- 238000001179 sorption measurement Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 239000013078 crystal Substances 0.000 claims description 137
- 230000005284 excitation Effects 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 12
- 201000010099 disease Diseases 0.000 description 9
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 9
- 238000003860 storage Methods 0.000 description 9
- 239000004816 latex Substances 0.000 description 8
- 229920000126 latex Polymers 0.000 description 8
- 239000003550 marker Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000010790 dilution Methods 0.000 description 7
- 239000012895 dilution Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 5
- 230000004520 agglutination Effects 0.000 description 5
- 238000011088 calibration curve Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- JAYCNKDKIKZTAF-UHFFFAOYSA-N 1-chloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1Cl JAYCNKDKIKZTAF-UHFFFAOYSA-N 0.000 description 1
- 101100084627 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) pcb-4 gene Proteins 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 239000012490 blank solution Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- IUYOGGFTLHZHEG-UHFFFAOYSA-N copper titanium Chemical compound [Ti].[Cu] IUYOGGFTLHZHEG-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors
Definitions
- the present invention uses a crystal sensor that is configured such that one surface of a crystal resonator is in contact with a sample solution and the other surface faces an airtight space, and detects a component to be measured by detecting a change in frequency.
- the present invention relates to a component measuring apparatus for measuring a component to be measured in a sample solution.
- Quartz sensors that use quartz resonators to detect trace substances, such as environmental pollutants and disease markers, are generally known, and as a disease marker measuring instrument using such a quartz sensor, for example, a patent The technique of document 1 is proposed.
- this disease marker measuring device is a means for capturing a disease marker substance by a latex agglutination reaction (latex agglutination reaction vessel) 1 1 and the captured disease marker substance in a crystal resonator.
- a means for attaching (crystal resonator) 1 2 and a means (detector main body) 13 for oscillating a crystal resonator to which a disease marker substance is attached and measuring and displaying a change in the oscillation frequency are provided.
- the crystal resonator 12 is integrated with the oscillation circuit 14 and the battery in the detector body 13 and enclosed in a metal casing.
- the latex latex agglutination reaction vessel 11 (reaction cell) is filled with the immune latex solution, and then one side of the crystal resonator 12 is immersed in the reaction cell to stabilize its oscillation frequency. Next, a solution containing the antigen to be measured is added to the reaction vessel 11, the disease marker substance is captured by latex agglutination, and the immune latex aggregation is completed 60 minutes later. By calculating the concentration of the measurement object is measured.
- the quartz cell Sensor frequency may shift slightly.
- a plurality of, for example, eight crystal sensors having the same configuration are prepared, while eight sample solutions having different dilution ratios of the sample to be measured are prepared. It is preferable to measure the concentrations of specimens in eight types of sample solutions having different dilution ratios for each of the quartz sensors, and create a calibration curve from the obtained concentrations to determine the concentrations.
- the measurement work is performed by connecting the quartz resonator 12 and the detector body 13 immersed in the latex agglutination reaction vessel 11 on the work table.
- the wiring is routed on the work bench, so the crystal unit 1 2 is immersed by hooking this wire.
- Container 1 1 may fall over.
- the present invention has been made in view of such circumstances.
- the purpose of the present invention is to provide a plurality of crystal sensors detachably on the main body of the measuring instrument so that the presence or absence of the measurement target component and the concentration of the measurement target component can be determined.
- An object of the present invention is to provide a component measuring apparatus capable of performing measurement work easily and in a short time.
- the present invention relates to a component measurement device used for detecting a measurement target component in a sample solution. In place
- a holding part having a concave part for forming an airtight space and an adsorption layer for adsorbing a measurement target component to the excitation electrode on one side are formed, and the excitation electrode on the other side faces the ⁇ part.
- a measuring instrument body that includes an oscillation circuit electrically connected to the quartz sensor, and that detects a change in the natural frequency of the quartz resonator by bringing a sample solution into contact with the adsorption layer;
- connection terminal portions that are provided in the measuring instrument main body and in which a plurality of crystal sensors are detachably mounted in a state where the adsorption layer faces upward
- At least one of the presence / absence of a measurement target component in the sample solution and the concentration of the measurement target component is measured based on a detection result in the measuring instrument main body.
- the plurality of connection terminal portions of the measuring device main body are provided so that, for example, crystal sensors are arranged in the horizontal direction. You may make it provide the cover body which covers the circumference
- the lid is provided so as to be rotatable around an axis extending horizontally along the side surface of the measuring instrument main body, and a quartz sensor is provided so that a position covering the plurality of quartz sensors and a sample solution can be injected. It is preferable to be configured to open and close between the position where the light is exposed.
- the lid may be configured such that a region covered with the lid is shielded from the outside. Furthermore, the inner side of the lid may be divided into a plurality of sections so as to independently cover a plurality of quartz sensors, and the section areas may be shielded from each other.
- the holding portion may include a wiring board provided on one end side thereof with a connection terminal portion attached to the connection terminal portion of the measuring device main body.
- the holding unit may include a crystal holding member made of an elastic material laminated on the wiring board, and the crystal unit may be attached to the crystal holding member.
- the excitation electrode of the crystal resonator and the electrode of the wiring board may be bonded to each other with a conductive adhesive.
- a plurality of crystal sensors each having a Langevin type crystal resonator are detachably connected to the measuring instrument body so that the adsorption layer faces upward. .
- a sample solution can be dropped and measured on a plurality of quartz sensors.
- the measurement time can be significantly shortened compared to performing measurement work multiple times using a single crystal sensor. be able to.
- the quartz sensor is less susceptible to electromagnetic waves.
- the lid body is divided into a plurality of parts so as to independently cover a plurality of quartz sensors, and each partition area is shielded from each other, so that it is less susceptible to the influence of the frequency of adjacent quartz sensors. Therefore, highly accurate measurement can be performed.
- FIG. 1 is a perspective view showing a state in which a lid of an example of a component measuring apparatus according to the present invention is opened.
- FIG. 2 is a perspective view of a half-angled eye showing an example of a quartz sensor used in the measuring instrument.
- FIG. 3 is a cross-sectional view showing an example of the crystal sensor.
- FIG. 4 is a cross-sectional view showing an example of the crystal sensor.
- FIG. 5 is a perspective view showing an example of the crystal sensor.
- FIG. 6 is a block diagram showing an example of the internal configuration of the crystal sensor connected to the measuring instrument main body and the measuring instrument main body.
- FIG. 7 is a block diagram showing an example of a specific configuration of the signal processing unit.
- FIG. 8 is a perspective view showing a state in which the lid of the measuring instrument is closed.
- -Fig. 9 is a characteristic diagram showing the relationship between the frequency difference and the concentration of the component to be measured in sample solutions with different dilution ratios when measuring the concentration of the component to be measured using multiple quartz sensors. is there.
- FIG. 10 is an exploded perspective view showing another example of the quartz sensor.
- FIG. 11 is a plan view showing an example of the configuration of another measuring instrument of the present invention.
- FIG. 12 is a plan view showing an example of the configuration of still another measuring instrument of the present invention.
- FIG. 13 is a side view showing an example of the configuration of still another measuring instrument of the present invention.
- FIG. 14 is a block diagram showing the configuration of a conventional component measuring apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a perspective view showing the entire configuration of a component measuring apparatus according to the present invention.
- This measuring apparatus is provided with a plurality of, for example, eight crystal sensors 3 detachably mounted on a side surface 21 of a measuring instrument body 2. It is configured to be worn.
- This crystal sensor 3 is a Langevin type crystal sensor, and as shown in FIG. 2, a base body 5 serving as a crystal holding member is mounted on a print substrate 4 serving as a wiring board.
- the crystal resonator 30 is stored in the storage region formed in the base body 5, and the case body 6 is attached to the printed circuit board 4 so as to cover the crystal resonator 30 and the base body 5 from above.
- the holding part is specifically configured by the printed circuit board 4 and the base body 5 constituting the crystal holding member.
- 30 is, for example, an equivalent thickness of 1 m to 300 ⁇ m, preferably Is a 1 85 m circular plate-shaped crystal unit, and 3 1 and 3 2 are from the crystal unit 30 attached to one side and the other side of the crystal unit 30 respectively.
- These excitation electrodes 3 1 and 3 2 are connected to foil-like lead electrodes 3 3 and 3 4, respectively, and these lead electrodes 3 3 and 3 4 are strip-shaped outward from the excitation electrodes 3 1 and 3 2.
- the printed circuit board 4 is formed in a rectangular plate shape, and is provided with a connection terminal portion 41 that is attached to and detached from the measuring device main body 2 and is electrically connected to a circuit in the measuring device main body 2. I have.
- the crystal unit 30 Foil-like electrodes 4 3 and 4 4 having one end connected to the lead-out electrodes 3 3 and 3 4 and extending at the other end toward the connection terminal portion 41 are attached.
- the equivalent thicknesses of the excitation electrodes 3 1 and 3 2, the extraction electrodes 3 3 and 3 4, and the electrodes 4 3 and 4 4 are, for example, about 0.2 ⁇ m.
- gold or silver is preferable, but gold is particularly preferable because of its high frequency stability in a fluid and resistance to oxidation of the electrode surface under storage in air before use. .
- the base body 5 is formed of an elastic material such as rubber, and when the accommodation area of the crystal unit 30 is formed on one side, a circular recess 51 that forms the airtight space is formed. Yes.
- the recess 51 is formed in two stages, and the first recess 52 in the first stage is for forming the accommodation area, and the peripheral area on the back surface side of the crystal unit 30 is placed thereon. It is formed in a ring shape so as to form a mounting portion.
- the crystal unit 30 is placed in the first recess 52 and the position thereof is regulated by the inner wall of the first recess 52.
- the second recess 53 in the second stage is for forming the airtight space, and is formed in a circular shape at a position lower than the first recess 42, and the outer diameter of the recess 53 is These are formed to be larger than the outer diameter of the excitation electrode 32 on the other surface side of the crystal resonator 30 and smaller than the outer diameter of the crystal resonator 30.
- the bottom surface side of the second recess 53 is fitted into the hole 42 of the printed board 5, whereby the base body 5 is attached to the printed board 5. Further, outside the first recess 52 in the base body 5, the holes 5 4, 5 are brought into contact with the lead-out electrodes 3 3, 3 4 when the crystal resonator 30 is accommodated in the base body 5. 5 is formed.
- the crystal unit 30 is placed on the upper surface of the first recess 52 so as to close the second recess 53, and by the elastic restoring force of the base body 5, the inner wall of the first recess 52 is used.
- the position is fixed while the position is restricted, so that an airtight space is formed on the other surface side of the crystal unit 30 by the second flange portion 53.
- a conductive adhesive 5 6 for example, an adhesive mixed with a silver paste based on an epoxy adhesive
- the peripheral edge portion of the first recess 52 and the peripheral edge portion on the back surface side of the crystal resonator 30 are also adhered and fixed by the conductive adhesive.
- the electrodes 4 3 and 4 4 formed on one surface side of the printed circuit board 4 and the lead-out electrodes 3 3 and 3 4 of the crystal resonator 30 are electrically connected through the conductive adhesive 5 6.
- the position of the crystal unit 30 is regulated by the inner wall of the first recess 52, and when the crystal unit 30 is positioned in the first recess 52, the excitation electrode 3 2 on the other surface side Is provided at a position facing the space formed by the second recess 53.
- the space in the second recess 53 is an airtight space.
- the excitation electrode 32 on the other side comes into contact with the airtight space in the second flange 53.
- an adsorption layer made of, for example, an antibody that adsorbs a measurement target component is formed on the surface of the excitation electrode 31 on one side of the crystal unit 30.
- the printed circuit board 4 on which the crystal resonator 30 and the base body 5 are mounted is configured to be covered with a resin case body 6 from above the crystal resonator 30.
- the case body 6 is configured to cover the periphery of the printed circuit board 4 where the crystal resonator 30 is provided.
- One end side of the printed circuit board 4 forming the connection terminal portion 41 is exposed to the outside of the case body 6.
- the connection terminal portion 41 is detachably attached to the measuring device body 2.
- the case body 6 is provided on the upper surface side of the crystal resonator 30 so as to constitute a surface portion 61 that is substantially the same as the crystal resonator 30 or wider than the crystal resonator 30.
- two openings 6 2 and 6 3 for supplying the sample solution to the surface portion 61 are formed.
- This measuring device body 2 is placed on a mounting surface such as a work table, for example, and includes a conductive outer body 20 formed in a substantially rectangular shape.
- a mounting surface such as a work table, for example, and includes a conductive outer body 20 formed in a substantially rectangular shape.
- One of the side surfaces of the outer body 20 is For example, a plurality of, for example, eight crystal sensors 3 are detachably provided in a line.
- the number corresponding to the quartz sensor 3 along one side of the measuring instrument main body 2 in this example, eight oscillation circuits 71 are arranged in a row in the horizontal direction. Has been.
- This oscillation circuit 71 is means for oscillating the crystal resonator 30 of the crystal sensor 3.
- the conductive side surface portion 21 constituting the side surface of the measuring instrument body 2 is formed with eight openings 22 at positions corresponding to the oscillation circuit 71, and through these openings 22.
- PCB 4 The connection terminal 4 1 is mounted in a state where it is inserted into the corresponding oscillation circuit 7 1 (see Fig. 5).
- the part of the oscillation circuit 7 1 where the connection terminal part 4 1 of the printed circuit board 4 is mounted constitutes the connection terminal part, and the crystal sensor 3 is in a state where it floats from the mounting surface.
- the connection terminal 4 1 of the printed circuit board 4 is attached to the connection terminal.
- oscillation circuits 7 1 are electrically connected to the electrodes 4 2, 4 3 via the connection terminals 4 1 of the printed circuit board 4 when the printed circuit board 4 is mounted.
- each is connected to a signal processing unit 72.
- the signal processing unit 72 is connected to the reference clock generation unit 73 that generates a reference frequency signal connected to the oscillation circuit 71, the frequency signal from the oscillation circuit 71, and the clock signal from the reference clock generation unit 73.
- amplifying unit 75, and amplifying unit 75 for example, consisting of a heterodyne detector, to extract the frequency signal corresponding to the frequency difference between the two based on the frequency of the output signal is counted.
- a counter 76 and a data processing unit 77 are provided, and the concentration of the measurement target component obtained by the data processing unit 77 is displayed on the display unit 78.
- a channel switching unit (not shown) is provided between the oscillation circuit 71 and the frequency difference detection means 74, and each output (8 channels) from the eight oscillation circuits 71 is sequentially switched to obtain a frequency difference.
- the detecting means 74 is connected in sequence.
- 7 9 is an operation unit. Even if the dioxin concentration is not displayed on the display unit 78, a threshold for the change in the frequency may be set to determine the presence or absence of dioxin.
- each crystal sensor 3 for example, 9 MHz is selected, and as the frequency of the reference clock generation unit 73, for example, 1 O MHz is selected.
- the frequency difference detection means 7 4 is the difference between the frequency from the crystal sensor 3 side and the frequency of the reference clock 1 MHz Frequency signal (frequency difference signal) is output, but when dioxin is adsorbed to the crystal resonator 30, the natural frequency changes, and thus the frequency difference signal also changes, so the count value in the counter 76 is Change.
- a computer is connected to the measuring instrument body 2, and a data processing unit is provided in the computer. 2005/023418 May be.
- the display unit may be provided separately from the measuring instrument body 2.
- Such a measuring instrument body 2 includes a lid body 8 that covers each crystal sensor 3 attached to the measuring instrument body 2.
- the lid body 8 is formed in an elongated rectangular box shape, and includes a conductive wall portion 8 1 that comes into contact with the side surface portion 21 when closed.
- the quartz crystal sensor 3 is mounted on the wall portion 81, a plurality of independent crystal sensors 3 are shielded from each other so that the storage area 80 of the eight quartz sensor 3 is formed in this example.
- the number of recesses 82 corresponding to the quartz sensor 3 to be formed is formed.
- a metal foil is pasted on the inner surface of the recess 82, the inner surface is formed of a conductive material, and a region covered with the lid 8 is shielded.
- the wall portion 81 around the concave portion 82 covers the periphery of the opening portion 22 to which the crystal sensor 3 is attached, and the crystal sensors 3 are separated from each other. It is designed to be stored. In this way, the side surface 2 1 around the opening 2 2 of the measuring instrument body 2, the recess 8 2 of the lid 8, and the wall 8 1 around the recess 8 2 are sealed and electrically shielded.
- a storage area 80 of the quartz sensor 3 is formed.
- the conductive material is located at a position where it contacts the side surface 21 between the adjacent openings 2 2 of the measuring instrument body 2 when the lid 8 is closed.
- the spring 8 3 comes into contact with the side surface 21 of the measuring instrument main body 2 and this reduces the impact when the lid 8 is closed. It is becoming.
- the conductive outer body 20 is electrically contacted with the concave portion 82 and the wall portion 81 and is thus connected to the ground to form an electromagnetic shield.
- the spring 83 is, for example, a conductive metal spring such as a copper titanium alloy, and is preferably composed of a material having excellent conductivity.
- a shock absorber 84 such as a sponge, is attached to the housing 8 to absorb an impact when the lid 8 is closed, for example, outside the two outermost concave portions 82.
- Such a lid 8 is provided so as to be rotatable around an axis extending horizontally along the side surface of the measuring instrument main body 2.
- the side wall 2 3 (2 4) of the measuring instrument body 2 is connected to both ends of the lid 8
- the wall portion 8 5 (8 6) is connected to the wall portion 8 5 via a rotation mechanism.
- the rotating mechanism includes a first plate 8 7 a screwed to the side wall 2 3 (2 4), and a second plate 8 7 b screwed to the wall 8 5 (8 6). It has.
- a connecting shaft 8 9 is formed on the first plate 8 7 a, a guide groove 8 8 is formed on the second plate 8 7 b, and the connecting shaft 8 9 is formed on the guide groove 8 8.
- the wall portion 8 5 (8 6) can rotate around the horizontal axis. Therefore, it can be opened and closed between the state in which the lid 8 is opened (the position where the crystal sensor is exposed as shown in FIG. 1) and the state where the lid 8 is closed (the position where the crystal sensor shown in FIG. 8 is covered).
- the connecting shaft 9 corresponds to a shaft extending horizontally along the side surface of the measuring instrument body 2.
- a component measuring apparatus first, a plurality of, for example, eight crystal sensors 3 are prepared, and a component to be measured, for example, dioxin, is selectively formed on, for example, the excitation electrode 31 on one side of the crystal unit 30. An antibody that is an adsorbing layer to be adsorbed is attached. Then, these eight crystal sensors 3 are attached to the measuring instrument main body 2 by inserting the connecting terminal portion 41 of the printed circuit board 4 into the connecting terminal portion of the oscillation circuit 71 of the measuring instrument main body 2.
- pure water was first dropped (injected) from each of the openings 6 2 and 6 3 to each quartz sensor 3 as a blank solution, and the frequency counted by the counter 76 at this time was counted.
- the sample solution is injected from the openings 6 2 and 6 3, the frequency at this time is counted by the counter 76, and the pure water introduced into each crystal sensor 3 is counted by the data processing unit 7 7
- the change between the frequency and the dioxin frequency (the change in the natural frequency of the quartz crystal) is taken out, and the concentration of dioxin in each sample solution is calculated from the first calibration curve prepared in advance.
- the frequency difference that is the change between the pure water frequency and the dioxin frequency at this time and the dioxin concentration of each sample solution are displayed on the display unit 78.
- an operator plots the frequency difference and the dioxin concentration (C 1 to C 8) of each sample solution, and the variation of the dioxin concentration of each sample solution is the maximum.
- a second calibration curve as shown in FIG. 9 is drawn so as to reduce the concentration, and the concentration of dioxin in the sample solution is determined based on this second calibration curve.
- the concentration in the solution before dilution can be determined from the dilution rate of the sample solution in the quartz sensor 3 corresponding to the concentration.
- the concentration of each sample solution is measured using a plurality of crystal sensors 3, and based on this, the concentration of the sample solution is determined.
- the decision is based on the following reasons. That is, the frequency of the crystal sensor 3 may be slightly shifted due to manufacturing variations. When measuring using only one crystal sensor, the frequency variation of the crystal sensor is reflected in the concentration measurement. This is to suppress this because the error will increase.
- a plurality of Langevin-type quartz sensors 3 are detachably provided on the side surface of the measuring instrument body 2 so that the adsorption layer faces upward.
- the crystal sensor 3 is mounted on the oscillation circuit 7 1 provided in the measuring device body 2 and the sample solution is dropped onto one surface side of the crystal resonator 30 through the openings 6 2 and 6 3. The concentration of the solution can be easily measured.
- the sample is attached to the quartz sensor 3 at another location, and this is carried to the measuring instrument. This eliminates the need for such troublesome work. Furthermore, the measurement work can be performed easily and quickly without fear of overturning the container containing the sample solution.
- the crystal sensor is mounted in a state where it floats from the mounting surface on which the measuring instrument body 2 is placed, there is no wiring around the work table to connect the crystal sensor and the measuring instrument body. There is no risk of the quartz sensor falling over due to the wiring. Also, use multiple crystal sensors 3 to measure the concentration of multiple samples in parallel. As a result, the time required for measurement can be greatly reduced compared to the case where a single crystal sensor is used for many measurements.
- the printed circuit board 4 is provided with the crystal resonator 30 via the base body 5, and the connection to the measuring instrument body 2 is performed by connecting the connection terminal portion 41 of the printed circuit board 4 to the measuring instrument. Since it can be inserted into or removed from the connection terminal portion of the oscillation circuit 71 in the main body 2, it can be easily attached and detached and electrically connected.
- the periphery of the crystal sensor 3 is covered with the conductive lid 8, so that dust from the atmosphere in which the measuring device body 2 is placed can be a mobile phone or a microwave oven.
- the quartz sensor 3 is cut off from disturbances such as electromagnetic waves from the air, air currents, human body temperature, etc., and these adverse effects can be eliminated, and more accurate measurement can be performed.
- the crystal sensor 3 is provided inside a conductive storage area formed across the measuring instrument body 2 and the lid body 8, and each storage area 80 is partitioned in a mutually independent state, Since it is electrically shielded from the outside, electromagnetic waves from the outside such as mobile phones and microwave ovens are blocked, and these adverse effects are eliminated.
- Each crystal sensor 3 is set to the same frequency, but due to manufacturing variations, it is extremely difficult to set the same frequency, and the frequency of adjacent crystal sensors 3 is very close but slightly It is shifted to. For this reason, by individually shielding the periphery of the quartz sensor 3, interference between the frequencies of the neighboring quartz sensors 3 can be suppressed, and accurate measurement can be performed for each quartz sensor 3.
- the crystal sensor 9 having the configuration shown in FIG. 10 may be used in the present invention.
- the crystal sensor 9 having this configuration includes excitation electrodes 3 1 and 3 2 and lead-out electrodes 3 3 and 3 4 on one surface side and the other surface side of the crystal resonator 30 in the same manner as the crystal sensor described above.
- the difference from this crystal sensor is that the electrical connection with the circuit in the measuring instrument body 2 is not performed via the connection terminal portion 41 of the printed circuit board 4, but is connected to the lead electrodes 3 3 and 3 4 at one end. This is done through a pair of support wire members 9 1 and 9 2 connected on the sides.
- the support wire members 9 1 and 9 2 are made of, for example, piano wires, and the other end sides of the support wire members 9 1 and 9 2 are connected to the oscillation circuit 71 of the measuring instrument main body 2.
- 9 3 is a base body made of grease, and three sides are surrounded by a frame part.
- An accommodation region for the crystal resonator 30 is formed.
- a circular concave portion 94 is formed in the accommodation region, and when the crystal resonator 30 is accommodated in the accommodation region, the excitation electrode 3 on the other surface side of the crystal resonator 30 is formed by the concave portion 94.
- An airtight space where the two come into contact is formed.
- 95 is a holder for the support wire member, and 96 is a receiving part for regulating the position of the holder.
- the crystal sensor 9 is attached to or removed from the connection terminal of the oscillation circuit 7 1 of the measuring instrument body 2 by attaching or removing the tips of the support wire members 9 1 and 9 2 to the measuring instrument body 2 Is detachably provided. Also in this component measuring apparatus, since a plurality of crystal sensors 9 are detachably provided, similarly to the above-described embodiment, it is possible to easily measure the concentration of the component to be measured using the plurality of crystal sensors 9. It can be done in a short time.
- a lid may be provided so as to surround the quartz sensor 9 attached to the measuring device main body 2, or a plurality of crystal sensors 9 may be provided. You may make it accommodate in a mutually different storage area in the mutually electrically independent state.
- the number of the quartz sensors 3 attached to and detached from the measuring instrument main body 2 may be two or more, and is not necessarily eight.
- the number of the quartz sensors 3 attached to and detached from the measuring instrument main body 2 may be two or more, and is not necessarily eight.
- the number of the quartz sensors 3 attached to and detached from the measuring instrument main body 2 may be two or more, and is not necessarily eight.
- not all of the crystal sensors 3 are provided on one side of the measuring instrument body 2, but one or more crystal sensors 3 are provided on two or more sides as shown in Fig. 11. You may do it.
- the lid 8 is provided independently of the measuring instrument main body 2 and, as shown in FIG. 12, a plurality of crystal sensors 3 are attached to the measuring instrument main body 2, and after the sample solution is injected, ⁇ It may be one that can be attached. Furthermore, instead of forming a plurality of recesses 82 on the lid 8 and covering each crystal sensor 3 independently, it is also possible to cover each crystal sensor 3 with the lid 8 in one room. ,. Furthermore, a plurality of crystal sensors 3 are arranged vertically on the side surface of the measuring instrument main body 2 with the excitation electrode 31 on one side in contact with the sample solution facing upward. Also good.
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05820255A EP1830170A4 (en) | 2004-12-15 | 2005-12-14 | COMPONENTS MEASURING DEVICE |
CN2005800433350A CN101080625B (zh) | 2004-12-15 | 2005-12-14 | 成分测定装置 |
US11/792,965 US7554247B2 (en) | 2004-12-15 | 2005-12-14 | Component measuring device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004363539 | 2004-12-15 | ||
JP2004-363539 | 2004-12-15 |
Publications (1)
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WO2006064952A1 true WO2006064952A1 (ja) | 2006-06-22 |
Family
ID=36587991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/023418 WO2006064952A1 (ja) | 2004-12-15 | 2005-12-14 | 成分測定装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7554247B2 (ja) |
EP (1) | EP1830170A4 (ja) |
CN (1) | CN101080625B (ja) |
WO (1) | WO2006064952A1 (ja) |
Cited By (2)
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EP2071315A1 (en) * | 2006-09-29 | 2009-06-17 | Nihon Dempa Kogyo Co., Ltd. | Sensing device |
JP2009531678A (ja) * | 2006-03-31 | 2009-09-03 | アンドレアス ヘティック ゲーエムベーハー アンド カンパニー カーゲー | 測定チャンバとクィックロックを介して測定チャンバに組み込み可能な共振子とからなる液体用センサー装置 |
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US7554247B2 (en) | 2004-12-15 | 2009-06-30 | Nihon Dempa Kogyo Co., Ltd | Component measuring device |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01244335A (ja) | 1988-03-25 | 1989-09-28 | Tosoh Corp | 匂検出用の化学センサ |
JPH03257346A (ja) * | 1990-03-08 | 1991-11-15 | Seiko Instr Inc | 反応計測装置 |
JPH041554A (ja) * | 1990-04-17 | 1992-01-07 | Seiko Instr Inc | 反応計測装置 |
JPH049744A (ja) * | 1990-04-27 | 1992-01-14 | Seiko Instr Inc | 水晶振動子セル |
JPH09145583A (ja) | 1995-11-14 | 1997-06-06 | Dev Center For Biotechnol | カートリッジ状の圧電センサチップ |
JPH09250936A (ja) * | 1996-01-10 | 1997-09-22 | Ngk Insulators Ltd | 包囲空間が形成されたセラミック基体 |
JPH10142134A (ja) * | 1996-11-06 | 1998-05-29 | Yokogawa Electric Corp | 匂い測定装置 |
JP2001083154A (ja) | 1999-09-13 | 2001-03-30 | Agency Of Ind Science & Technol | 疾病マーカー物質簡易小型検出装置 |
JP2001201436A (ja) * | 2000-01-18 | 2001-07-27 | Shimadzu Corp | ガス測定装置 |
JP2004205392A (ja) * | 2002-12-26 | 2004-07-22 | Japan Science & Technology Agency | Qcm装置及び試料測定方法 |
JP2004264254A (ja) * | 2003-03-04 | 2004-09-24 | Seiko Epson Corp | 質量測定チップおよび質量測定装置 |
JP2004340766A (ja) * | 2003-05-16 | 2004-12-02 | Hitachi Ltd | 化学物質検出装置 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5196347A (en) | 1986-07-03 | 1993-03-23 | Terumo Kabushiki Kaisha | Method for measuring oxygen concentration |
US4991283A (en) | 1989-11-27 | 1991-02-12 | Johnson Gary W | Sensor elements in multilayer ceramic tape structures |
JP2555002B2 (ja) | 1991-06-27 | 1996-11-20 | 株式会社イナックス | フローインジェクション方式による尿中成分の連続定量分析方法 |
JP3179178B2 (ja) * | 1992-04-16 | 2001-06-25 | セイコーインスツルメンツ株式会社 | 水晶振動子セル |
DE4334834A1 (de) | 1993-10-13 | 1995-04-20 | Andrzej Dr Ing Grzegorzewski | Biosensor zum Messen von Viskositäts- und/oder Dichteänderungen |
JP3499277B2 (ja) | 1993-12-27 | 2004-02-23 | 東京電波株式会社 | 匂い物質センサと匂い測定装置 |
JP3343030B2 (ja) | 1996-05-22 | 2002-11-11 | 日本碍子株式会社 | センサ素子 |
JPH10332463A (ja) | 1997-03-31 | 1998-12-18 | Nippon Paint Co Ltd | 水晶発振子を用いた塗膜評価装置及び塗膜の消耗性の評価方法 |
JPH11183479A (ja) | 1997-10-16 | 1999-07-09 | Fuji Electric Co Ltd | 溶液測定用センサ及び溶液成分測定方法 |
US6321588B1 (en) | 1998-09-11 | 2001-11-27 | Femtometrics, Inc. | Chemical sensor array |
JP2000338022A (ja) | 1999-05-25 | 2000-12-08 | Hokuto Denko Kk | マルチチャンネルqcmセンサデバイス及びマルチチャンネルqcm測定システム |
JP3643521B2 (ja) | 1999-07-29 | 2005-04-27 | 株式会社日立製作所 | 腐食環境監視装置 |
DE19936693A1 (de) * | 1999-08-04 | 2001-02-08 | Lre Technology Partner Gmbh | Verfahren zur ampereometrischen Bestimmung der Konzentration einer Substanz in einer Flüssigkeit |
DE29918177U1 (de) | 1999-10-14 | 2000-01-05 | Kan, Chin-Mao, Chung Li | Chassis zur Drahtverbindung in zwei Ebenen |
AU2001283977B2 (en) | 2000-08-08 | 2005-03-10 | Inverness Medical Switzerland Gmbh | Quartz crystal microbalance |
JP2002148295A (ja) | 2000-11-10 | 2002-05-22 | Ulvac Japan Ltd | 周波数測定方法、周波数測定装置及び分析装置 |
JP4387603B2 (ja) | 2001-02-16 | 2009-12-16 | 株式会社アルバック | 測定装置及び測定方法 |
DE10203475A1 (de) | 2002-01-18 | 2003-07-31 | Bosch Gmbh Robert | Vorrichtung zur Messung der Viskosität und/oder der Dichte |
SE0203772D0 (sv) * | 2002-12-19 | 2002-12-19 | Attana Ab | Piezoelectric sensor arrangement |
JP2004304766A (ja) | 2003-03-17 | 2004-10-28 | Seiko Epson Corp | 発振回路およびその調整方法並びにそれを用いた質量測定装置 |
US20050052813A1 (en) | 2003-03-25 | 2005-03-10 | Yoshihiro Kobayashi | Mass measurement method, circuit for exciting piezoelectric vibration reed for mass measurement, and mass measurement apparatus |
JP4213061B2 (ja) | 2003-03-28 | 2009-01-21 | シチズンホールディングス株式会社 | Qcmセンサーおよびqcmセンサー装置 |
JP2005043123A (ja) | 2003-07-24 | 2005-02-17 | Seiko Epson Corp | 液滴重量測定装置および液滴吐出装置 |
WO2006064951A1 (ja) | 2004-12-15 | 2006-06-22 | Nihon Dempa Kogyo Co., Ltd | 水晶センサ及び感知装置 |
US7554247B2 (en) | 2004-12-15 | 2009-06-30 | Nihon Dempa Kogyo Co., Ltd | Component measuring device |
WO2006064954A1 (ja) | 2004-12-15 | 2006-06-22 | Nihon Dempa Kogyo Co., Ltd | 水晶センサ及び感知装置 |
JP4134025B2 (ja) | 2004-12-28 | 2008-08-13 | 日本電波工業株式会社 | 感知装置 |
-
2005
- 2005-12-14 US US11/792,965 patent/US7554247B2/en not_active Expired - Fee Related
- 2005-12-14 CN CN2005800433350A patent/CN101080625B/zh not_active Expired - Fee Related
- 2005-12-14 EP EP05820255A patent/EP1830170A4/en not_active Withdrawn
- 2005-12-14 WO PCT/JP2005/023418 patent/WO2006064952A1/ja active Application Filing
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01244335A (ja) | 1988-03-25 | 1989-09-28 | Tosoh Corp | 匂検出用の化学センサ |
JPH03257346A (ja) * | 1990-03-08 | 1991-11-15 | Seiko Instr Inc | 反応計測装置 |
JPH041554A (ja) * | 1990-04-17 | 1992-01-07 | Seiko Instr Inc | 反応計測装置 |
JPH049744A (ja) * | 1990-04-27 | 1992-01-14 | Seiko Instr Inc | 水晶振動子セル |
JPH09145583A (ja) | 1995-11-14 | 1997-06-06 | Dev Center For Biotechnol | カートリッジ状の圧電センサチップ |
JPH09250936A (ja) * | 1996-01-10 | 1997-09-22 | Ngk Insulators Ltd | 包囲空間が形成されたセラミック基体 |
JPH10142134A (ja) * | 1996-11-06 | 1998-05-29 | Yokogawa Electric Corp | 匂い測定装置 |
JP2001083154A (ja) | 1999-09-13 | 2001-03-30 | Agency Of Ind Science & Technol | 疾病マーカー物質簡易小型検出装置 |
JP2001201436A (ja) * | 2000-01-18 | 2001-07-27 | Shimadzu Corp | ガス測定装置 |
JP2004205392A (ja) * | 2002-12-26 | 2004-07-22 | Japan Science & Technology Agency | Qcm装置及び試料測定方法 |
JP2004264254A (ja) * | 2003-03-04 | 2004-09-24 | Seiko Epson Corp | 質量測定チップおよび質量測定装置 |
JP2004340766A (ja) * | 2003-05-16 | 2004-12-02 | Hitachi Ltd | 化学物質検出装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1830170A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009531678A (ja) * | 2006-03-31 | 2009-09-03 | アンドレアス ヘティック ゲーエムベーハー アンド カンパニー カーゲー | 測定チャンバとクィックロックを介して測定チャンバに組み込み可能な共振子とからなる液体用センサー装置 |
EP2071315A1 (en) * | 2006-09-29 | 2009-06-17 | Nihon Dempa Kogyo Co., Ltd. | Sensing device |
EP2071315A4 (en) * | 2006-09-29 | 2012-01-25 | Nihon Dempa Kogyo Co | MEASURING DEVICE |
Also Published As
Publication number | Publication date |
---|---|
CN101080625B (zh) | 2011-11-09 |
US20080129148A1 (en) | 2008-06-05 |
US7554247B2 (en) | 2009-06-30 |
CN101080625A (zh) | 2007-11-28 |
EP1830170A4 (en) | 2012-04-11 |
EP1830170A1 (en) | 2007-09-05 |
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