WO2003044498A1 - Procede de mesure de concentrations de substances chimiques, procede de mesure de concentrations d'especes ioniques, et capteur utilise a cet effet - Google Patents
Procede de mesure de concentrations de substances chimiques, procede de mesure de concentrations d'especes ioniques, et capteur utilise a cet effet Download PDFInfo
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- WO2003044498A1 WO2003044498A1 PCT/JP2002/012182 JP0212182W WO03044498A1 WO 2003044498 A1 WO2003044498 A1 WO 2003044498A1 JP 0212182 W JP0212182 W JP 0212182W WO 03044498 A1 WO03044498 A1 WO 03044498A1
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- 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
Definitions
- Method for measuring the concentration of a plurality of chemical substances Method for measuring the concentration of a plurality of ion species, and a sensor therefor
- the present invention relates to a method for simultaneously measuring the concentrations of a plurality of chemical substances.
- the present invention also relates to a method for measuring the concentration of a plurality of ionic species and a sensor therefor.
- the concentration of a chemical substance has been measured by measuring a physical quantity that varies according to the concentration of the chemical substance, for example, the absorbance of a solution or the like as an output.
- concentration of the chemical substance to be measured measures the output for various known concentrations, and create a calibration curve using the output of the concentration on the horizontal axis and the output such as absorbance on the vertical axis. I do.
- the output is measured for a test sample having an unknown concentration, and the concentration corresponding to the output is read from the calibration curve to perform the concentration measurement.
- the slope of the calibration curve may be close to zero. In such a case, there are various densities corresponding to one output, and even if the output is measured, the corresponding density cannot be determined as one. If a test sample contains multiple chemicals that affect one type of output (for example, absorbance at a specific wavelength), the output may be measured, Because the proportion of contribution is unknown, it is not possible to determine the concentration of each chemical based on a calibration curve generated for each compound in the presence of a single compound.
- An object of the present invention is to reduce the conventional calibration curve due to the presence of a plurality of chemical substances to be measured and / or because the slope of the calibration curve of the chemical substance to be measured is close to zero.
- An object of the present invention is to provide a method for measuring the concentration of a plurality of chemical substances, which can simultaneously measure the concentrations of a plurality of chemical substances even when the measurement is difficult by the method used. Further, an object of the present invention is to provide a method for measuring the concentration of a plurality of ionic species, which can accurately measure the concentration of a plurality of ionic species even when a ionophore having a medium selectivity is used.
- the inventors of the present invention have conducted intensive studies and, as a result, have measured the concentrations of a plurality of chemical substances to be measured and the corresponding outputs at a plurality of concentrations, respectively.
- the neural network is trained, and the network inversion is used to obtain a solution candidate that is a set of numerical values expected to produce a measured output. By finding this, it was found that the concentrations of a plurality of chemical substances could be measured simultaneously, and the present invention was completed.
- the present invention provides a method for measuring a plurality of chemical substance concentrations, including a step of obtaining and a numerical value in which solution candidates of a plurality of chemical substance concentrations to be measured overlap each other.
- the inventors of the present application have determined the concentrations of a plurality of ion species to be measured and the The corresponding output is measured at each of a plurality of concentrations, trained by a feedforward hierarchical neural network, and then, by network inversion, a set of numbers predicted to produce the measured output.
- the present inventors have found that the concentration of a plurality of ion species can be measured at the same time by obtaining a solution candidate and obtaining a numerical value in which the solution candidates of a plurality of ion species concentrations to be measured are duplicated, and completed the present invention.
- the present invention also relates to a trapping structure portion capable of trapping at least one of a plurality of ions to be measured, and a trapping structure portion coupled to the trapping structure portion, and an ion is trapped in the trapping structure portion.
- the present invention provides a method for measuring the concentration of a plurality of ion species, including obtaining each numerical value in which solution candidates for chemical substance concentrations overlap. Further, the present invention provides a membrane sensor in which the plurality of ionophores used in the method of the present invention are immobilized on a single membrane.
- the present invention it has become possible to simultaneously measure the concentrations of a plurality of chemical substances, which was difficult with the conventional method. Therefore, the present invention is considered to greatly contribute to a wide range of fields where concentration measurement is required, including the field of chemical analysis.
- the present invention there is provided a method for measuring the concentration of a plurality of ion species, which can accurately measure the concentration of a plurality of ion species even when using a ionophore having a medium selectivity.
- the present invention provides a membrane sensor in which a plurality of ionophores are immobilized and can be used in the method of the present invention. According to the present invention, ions such as heavy metal ions can be easily quantified.
- FIG. 1 shows wavelengths of six kinds of ion samples measured in the embodiment of the present invention, 300 ⁇ ! The absorption spectrum and the three representative points of the spectrum in the region from 700 nm to 700 nm are shown.
- FIG. 1 shows wavelengths of six kinds of ion samples measured in the embodiment of the present invention, 300 ⁇ ! The absorption spectrum and the three representative points of the spectrum in the region from 700 nm to 700 nm are shown.
- FIG. 2 is a diagram showing a BP program described in C language used in the embodiment of the present invention.
- FIG. 3 is a diagram showing a continuation of FIG.
- FIG. 4 is a diagram showing a continuation of FIG.
- FIG. 5 is a diagram showing a continuation of FIG.
- FIG. 6 is a diagram showing a continuation of FIG.
- FIG. 7 is a diagram showing a network-inversion program described in the C language used in the embodiment of the present invention.
- FIG. 8 is a diagram showing a continuation of FIG.
- FIG. 9 is a diagram showing a continuation of FIG.
- FIG. 10 is a diagram showing a continuation of FIG. 9.
- FIG. 11 is a diagram showing a set of input densities predicted to output the absorbance of each dye when the ion sample of Zn3Gd4Hg3 is conveniently measured by network inversion in the example of the present invention. It is.
- FIG. 12 is a diagram showing a portion where the input density sets of the respective dyes shown in FIG. 11 overlap.
- FIG. 13 is a graph showing the absorption of the ionophores KM-F002 and KM-F003 used in the example of the present invention. It is a figure showing a spectrum.
- FIG. 14 is a diagram showing the fluorescence intensity spectra of solutions having various ion concentrations measured in the examples of the present invention.
- FIG. 15 is a diagram showing the fluorescence intensity spectra of solutions having various ion concentrations measured in the examples of the present invention.
- FIG. 16 is a diagram showing a program of the back propagation (BP) method described in the C language used in the embodiment of the present invention.
- FIG. 17 is a view showing a continuation of FIG.
- FIG. 18 is a diagram showing a continuation of FIG.
- FIG. 19 is a diagram showing a continuation of FIG.
- FIG. 20 shows the network inversion described in C language used in the embodiment of the present invention. It is a figure which shows the program of John.
- FIG. 21 is a diagram illustrating a continuation of FIG. 20.
- FIG. 22 is a diagram showing a continuation of FIG. 21.
- FIG. 23 is a diagram illustrating a continuation of FIG. 22.
- FIG. 24 shows the input concentration predicted to output the fluorescence intensity at each ionophore when the Zn2 Gd2 ion sample is used as a measurement target for convenience according to the network inversion in the embodiment of the present invention. It is a figure showing a set.
- FIG. 25 is a schematic diagram for explaining a method of manufacturing the membrane sensor 1 performed in the example of the present invention.
- FIG. 26 is a schematic view of the flow cell used in the example of the present invention.
- FIG. 27 is a calibration curve showing the relationship between the zinc ion concentration and the fluorescence intensity by the membrane sensor manufactured in the example of the present invention.
- FIG. 28 is a calibration curve showing the relationship between force domium ion concentration and fluorescence intensity by the membrane sensor manufactured in the example of the present invention.
- the chemical substance whose concentration is measured by the method of the present invention is not particularly limited, and may be any chemical substance whose output corresponding to the concentration can be measured.
- concentration of heavy metal ions is measured, but it goes without saying that the present invention can be applied to the measurement of the concentration of other chemical substances.
- the chemical substance is not limited to those contained in the liquid phase, but may be those contained in the gas phase or solid phase, those contained in living organisms, and the like.
- the measurable outputs corresponding to the concentrations of the multiple chemical substances to be measured are not particularly limited.
- the absorbance, turbidity, light transmittance, electrical conductivity, current, voltage, fluorescence intensity, Various physical quantities such as radioactivity and optical rotation can be exemplified.
- the output may vary directly depending on the concentration of the chemical (eg, absorbance when the chemical to be measured is a dye, electrical output when the chemical to be measured is an ion).
- Conductivity, optical rotation when the chemical substance to be measured is an optical rotation substance, etc.), and reacts the chemical substance to be measured with an indicator or a probe. (E.g., absorbance after reacting with an indicator whose color or color changes by binding to the chemical substance to be measured, or binding to a fluorescently labeled probe Later fluorescence intensity etc.).
- the number of types of output to be measured is not particularly limited, but if it is too small, it will be difficult to accurately measure the concentration of each chemical substance, and if it is too large, the processing will be complicated. It is preferable to measure the same number of outputs as the types of chemical substances. For example, in the following examples, the concentrations of three types of heavy metal ions are measured, but the measured output is the absorbance at three different wavelengths. In this case, it is preferable to select a type of output for each chemical that is likely to have a greater effect on the concentration of each chemical than the effect of the concentration of other chemicals. However, even when it is difficult to predict the type of output, by learning the relationship between the output and the concentration of the arbitrarily selected type using the back propagation method as described later, it is possible to obtain a considerably accurate Concentration measurement becomes possible.
- the value of each output is measured by varying the concentration of each chemical substance.
- BP backpropagation method
- BP is a well-known algorithm that is one of the learning methods of hierarchical neural networks
- BP is, for example, “Basic and practical two neural networks”, Corona, Shiro Usui, Akira Iwata, etc.
- Introduction to Neurocomputing ", Morikita Publishing, Masatoshi Sakawa, Masahiro Tanaka and” Neuro ⁇ Fuzzy 'Genetic Algorithms' ", Industrial Books, Masafumi Hagiwara
- a solution candidate which is a set of numerical values predicted to produce an output from the test sample, is obtained by network inversion using a computer. Net-quinn version is also a kind of algorithm of neural network, and the algorithm described in the above book It is known. Further, specific examples of the program are described in the following embodiments.
- a numerical value is obtained in which the solution candidates for the concentrations of the chemical substances to be measured overlap. Each calculated value is the required concentration of each chemical substance. Note that the number of overlapping solution candidates is not fixed at one point and may be in a numerical range with a certain range, but the concentration of each chemical substance is still within this numerical range, so it is quite accurate Concentration measurement becomes possible. Note that, when a numerical value in which the solution candidates overlap is in the numerical range, the center may be approximately used as the measured value.
- the ionophore used in the method for measuring the concentration of a plurality of ion species of the present invention comprises a trapping structure portion capable of trapping at least one of a plurality of ions to be measured; And at least an output structure part that outputs a re-signal by being trapped by the trapping structure part.
- the trabbing structure portion capable of trapping ions may be any structure as long as it can trap ion species to be measured.
- a preferred example is a heteromolecular structure that includes ions.
- the “heteromolecular structure” means a structure containing an electron-donating heteroatom such as oxygen, nitrogen, zeolite or phosphorus atom in addition to carbon atom.
- the heteromolecular structure may be a cyclic structure or an acyclic structure.
- Preferred examples of the cyclic structure include a crown ether and a hetero crown ether, and a hetero crown ether is particularly preferred.
- the term "heterocrown ether” means a compound in which at least one of a plurality of oxygen atoms in the crown ether has been replaced with another electron-donating atom such as a nitrogen atom or an io atom.
- the size of the crown ether and the hetero crown ether is not particularly limited, and can be appropriately selected depending on the ion species to be measured. However, usually, about 12 to 24 members are appropriate, and preferably 15 to 24 members. It has 18 members. However, the present invention is not limited to these, and three to sixty-three members are possible in the one represented by the formula [A] described below.
- the ion species to be trapped are not particularly limited, and are various metal ions, ammonium ions, organic ions, and the like, and are preferably metal ions, particularly heavy metal ions.
- Preferred examples of crown ethers or heterocrown ethers include those represented by the following general formula [A].
- each Y may be the same or different, and a plurality of Z Is included, each Z may be the same or different, and n and m each independently represent an integer of 0 to 10.
- heterocrown ether represented by the general formula [A] include, but are not limited to, those represented by the following formula [I] or [II].
- the selectivity to the ion type of the tracking structure portion in each ionophore is different. Therefore, since the sizes of different ion species are usually not the same, it is preferable that the sizes of the cyclic structures in each ionophore are different from each other.
- the output structure portion may have any structure as long as it can emit any measurable signal, and the type of signal is not limited.
- Preferred examples of the output structural portion include a fluorescent atomic group, a light absorbing atomic group and a chromogenic atomic group, and a fluorescent atomic group is particularly preferred.
- a fluorescent atom group when bonded to a trapping structure, the binding of ions to the trapping structure changes the fluorescent properties such as the fluorescence intensity.
- rhodamine, fluorescein, naphthalene, anthracene, pyrene, coumarin, quinoline, stilbene, benzothiozole, virazoline and the like and derivatives having these basic skeletons can be mentioned. Is not limited to these.
- Preferred examples of the fluorescent group include, but are not limited to, groups represented by the following formulas [III] to [VI].
- the fluorescent atomic groups contained in each ionophore are those which can be excited at the same excitation wavelength and have different maximum fluorescence wavelengths. If it is possible to excite at the same excitation wavelength, the operation at the time of measurement is simplified, which is preferable. In addition, when the maximum fluorescence wavelength is different, it becomes easier to obtain a more accurate measurement result by processing using a neural network described later.
- the method of the present invention is not limited to the case where excitation is performed at the same wavelength, but also includes the case where excitation is performed at different wavelengths.
- the number of types of ionophore used in the method of the present invention is not particularly limited, but if it is too small compared to the number of ion species to be measured, accurate measurement becomes difficult. If it is too large, processing by a computer described later will be performed. Must be measured because The number is preferably the same as the number of ON species, but may be less. In this case, it is preferable to employ a combination of ionophores in which ions having the highest affinity for each ionophore are different.
- the method of the present invention can be performed using each ionophore in a solution state.However, if each ionophore is immobilized on a single membrane and used, the handling is simple and the use in an aqueous system is possible. It is preferable because it becomes easy.
- the above trapping structure portion or output structure portion may be directly bonded to the membrane, it is preferable that the film be fixed to the membrane via a spacer structure (a membrane in which a plurality of ionophores are fixed to the membrane). In this specification, it may be referred to as a “membrane sensor”).
- the spacer structure may be connected to either the trapping structure portion or the output structure portion. The spacer structure is not limited at all.
- an alkyl group having about 3 to 20 carbon atoms, preferably about 4 to 8 carbon atoms, or an alkyl group for facilitating bonding to a film examples include an alkenyl group having a double bond introduced into the terminal of the group, a carboxy group, an amino group or a lipoxyalkyl group having an alkyl group bonded to the terminal of the alkyl group, an aminoalkyl group, and an alkyl group. can do.
- an ionophore having an alkenyl group having a double bond at one end of a spacer is preferable because it can be co-polymerized with a vinyl-based monomer to form a membrane when the vinyl-based monomer is polymerized to form a membrane.
- Specific examples of preferred ionophores include, but are not limited to, KM-F001, KM-F003, 1 ⁇ -"002 and 1 ⁇ -" 004 having the structures shown below.
- the amount of ionophore bound to the membrane is not particularly limited, and can be appropriately set based on routine experiments according to the expected concentration of the ion species to be measured in the test sample. Usually, about 0.1% to 10% is suitable for the weight of the membrane, preferably 0.5% to 5 ° /. It is about.
- ionophore used in the method of the present invention a well-known structure can be used as a trapping structure portion, an output structure portion, and a spacer structure when immobilized on a membrane, and a commercially available product can be used. They can be obtained simply by combining them, so that they can be easily produced by a conventional method.
- a plurality of ionophores are brought into contact with a plurality of ions of a known concentration to be measured, and the value of the output from each ionophore is measured by varying the concentration of each ion species.
- the measurement target is, for example, a fluorescent spectrum when excited at a predetermined excitation wavelength when the output structural portion is a fluorescent atomic group.
- a plurality of wavelengths are selected from the peak wavelength and the wavelength of the inflection point from the fluorescence vector, and the fluorescence intensity at that wavelength is used as an output in the first step in a neural network process described later. .
- the final concentration of the ionophore used in the first step is not particularly limited, and is appropriately set based on a routine experiment according to the expected concentration of the ion species to be measured in the test sample. can, but for each Ionofoa, usually, 10- 3 ⁇ 10- 7 mo l / U preferably 10 one 4 to 10-6 about mo l / l.
- the final concentration of the ionophore is calculated from the amount of the ionophore bound to the membrane sensor and the amount of the test sample.
- Other reaction conditions can be appropriately set according to the properties of each ion species and ionophore, but usually, the reaction temperature may be room temperature, and the reaction time may be about 1 minute to 1 hour.
- BP is a well-known algorithm as one of the learning methods of a hierarchical neural network as described above, and is a basic algorithm well-known to those skilled in the art described in the above-mentioned textbook book. Examples also provide specific examples of the program.
- a solution candidate which is a set of numerical values predicted to produce an output from the test sample, is obtained by network inversion using a computer.
- the network impulse is also a kind of algorithm of the neural network, and is a well-known algorithm described in the above book.
- specific examples of the program are described in the following examples.
- a numerical value in which the solution candidates of the plurality of ion species concentrations to be measured overlap is obtained.
- Each value obtained is the concentration of each ion species required.
- the number of duplicate solution candidates is one. Although it is not fixed at the point, it may be a numerical range with a certain range, but the concentration of each ion species still exists in this numerical range, so that a fairly accurate concentration measurement can be performed.
- the center of the numerical value may be approximately used as the measured value.
- concentration of the ion standard solution may be added after the element symbol of the metal of the ion.
- concentration 1. 00 X 10- 4 mo l / l mercury ions standard solution "Hg6j, concentration 1. 60 x zinc ion standard solution of 10_ 5 mo l / l may be represented as" Zn4j.
- a mixture of three types of ion standard solutions may be represented, for example, as “Zn1 Gd1 Hg3j”.
- Each of the above ionic aqueous solutions was specifically prepared as follows. First, for zinc acetate and cadmium acetate, prepare a standard solution with the highest concentration of buffer solution (solution with a concentration 20 times that of Zn6 and Gd6) in a 100 ml volumetric flask, and use the whole pipette to prepare the solution. The sample was taken up in a 100 ml volumetric flask. to this From the above, respective solutions of Zn5 and Gd5 were prepared. This dilution operation was repeated to prepare a standard solution of a zinc acetate solution and an acetic acid solution.
- Methylthymol blue (hereinafter, ⁇ ), murexide ammonium salt (hereinafter, “MAS”) and 4,7-dihydroxy-1,10- Fuenanto port phosphate sodium salt (hereinafter, "DHPj) were used.
- MTB concentration of the dye in the dye solution containing one of these dyes alone, MTB is 1.
- MAS murexide ammonium salt
- DHPj 4,7-dihydroxy-1,10- Fuenanto port phosphate sodium salt
- the peak exists at 440 nm (hereinafter referred to as “wl0j”), the inflection point exists at 555 nm (hereinafter referred to as “wM”), the peak But We chose three wavelengths of existing 600 nm (hereinafter, this wavelength is "wl2j").
- Figures 2 to 6 show BP programs written in C language. BP ran this program on an Unix-based computer.
- FIG. 11 Each numerical value in FIG. 11 indicates the concentration after normalization.
- the overlapping parts of the input density sets of each dye shown in Fig. 11 are found, they are gathered at almost one place indicated by the X mark in Fig. 12. Therefore, the centers of those points were determined and used as the measurement results.
- Table 5 shows the results.
- KM-F002 and KM-F003 were produced by a conventional method according to the following scheme.
- the concentration of the ion standard solution may be added after the element symbol of the metal of the ion.
- may represent a cadmium ion standard solution with a concentration 1.15 x 10 one 5 mol / l as "Gd4".
- a mixture of two ion standard solutions may be expressed as, for example, “Zn3Gd4j”.
- KM-F002 and KWI-F003 is Asetonitoriru solution (concentration 1.0 x 10- 5 M) were subjected to absorbance measurement in (1 3), it was this Togawaka' be excited both in the vicinity of 390 nm. Fluorescence measurements showed that the maximum fluorescence wavelength was 413 nm for KM-F002 and 517 nm for KM-F003, and did not overlap.
- FIGS. 14 and 15 show a case where the Gd concentration is changed with Zn1 and a case where the Zn concentration is changed with Gd6, respectively.
- the results are shown for the ion solutions with high concentrations at the wavelength of 420 nm, starting from the highest peak. From the wavelength at which the peak or inflection point exists, two points (typical point 1 (422 nm), representative point 3 (440 nm), Wavelength 480 nm or more 2 points (typical point 2 (5 17 nm), representative point 4 (530 nm)
- Table 10 shows the BP parameters used for learning. Table 10 0 BP parameters Ko 1 1 12 1
- the learning coefficient £ i at the t-th learning is calculated by the following equation (6).
- ⁇ BP programs written in C language are shown in Figs. BP executed this program on a Unix (registered trademark) computer.
- the network inversion program described in the C language used in the present embodiment is shown in FIGS. BP has run this program on Un (registered trademark) computers.
- FIG. 24 Each numerical value in FIG. 24 indicates the concentration after normalization.
- the input density sets of each dye shown in Fig. 24 are found to overlap, they are collected in a narrow range. Therefore, the centers of those points were determined and used as the measurement results. Table 11 shows the results.
- a film solution having the composition shown in Table 12 was made into a thin film state, and was subjected to photocopolymerization by applying ultraviolet rays. This method will be described with reference to FIG. A few drops of the film solution were dropped on silanized glass 10, and silanized quartz glass 12 was placed thereon. The distance between the glass plate 10 and the English glass plate 12 was about 0.18 mm with the cover glass 14 inserted. Next, the whole was placed in a transparent sterile pack, and nitrogen injection and evacuation were repeated five times to perform nitrogen substitution. An ultraviolet lamp 16 was irradiated for 3 hours from above the sterile pack which had been purged with nitrogen to form a film. The UV intensity of the ultraviolet lamps 1600 at a distance of 1 5 cm; was t W / cm 2.
- the ion response of the membrane sensor prepared in (1) was measured as follows. An acetonitrile solution of zinc nitrate hexahydrate or nitric acid cadmium tetrahydrate was prepared. Concentrations were respectively 1 X 10- 3, 1 X 10- 4, 1 X 10- 5 mo l / l. The above membrane sensor was immersed in each ion solution, and the measurement solution was injected using a flow cell in a Hitachi Spectrophotometer F-4500.The fluorescence intensity after 720 to 75 seconds was measured, and the average value was measured. A calibration curve was created based on Fig. 26 shows a schematic diagram of the flow cell. In FIG.
- FIGS. 27 and 28 The obtained calibration curves are shown in FIGS. 27 and 28. As shown in FIGS. 27 and 28, the obtained calibration curves show that the fluorescence intensity changes in a concentration-dependent manner for each of zinc ion and force domium ion. By performing the same neural network processing as in the first embodiment, it can be used for measuring these ion concentrations.
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JP2003546081A JP4128143B2 (ja) | 2001-11-22 | 2002-11-21 | 複数の化学物質の濃度の測定方法並びに複数のイオン種の濃度の測定方法及びそのためのセンサー |
AU2002349700A AU2002349700A1 (en) | 2001-11-22 | 2002-11-21 | Method for measuring concentrations of chemical substances, method for measuring concentrations of ion species, and sensor therefor |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006242691A (ja) * | 2005-03-02 | 2006-09-14 | Kowa Co | 鉛濃度の測定法 |
JP2006343124A (ja) * | 2005-06-07 | 2006-12-21 | Keio Gijuku | 複数の化学物質の測定方法 |
JP2012532318A (ja) * | 2009-07-01 | 2012-12-13 | ボード・オブ・リージエンツ,ザ・ユニバーシテイ・オブ・テキサス・システム | サンプルにおける検体の存在および/または濃度を決定する方法 |
JP2016028229A (ja) * | 2014-07-08 | 2016-02-25 | キヤノン株式会社 | データ処理装置、及びそれを有するデータ表示システム、試料情報取得システム、データ処理方法、プログラム、記憶媒体 |
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2002
- 2002-11-21 JP JP2003546081A patent/JP4128143B2/ja not_active Expired - Fee Related
- 2002-11-21 AU AU2002349700A patent/AU2002349700A1/en not_active Abandoned
- 2002-11-21 WO PCT/JP2002/012182 patent/WO2003044498A1/ja active Application Filing
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JPH08512134A (ja) * | 1993-06-29 | 1996-12-17 | テカトール アーベー | 特質決定のための化学的及び物理的パラメータの測定及び水性懸濁液の分類プロセス |
JPH09503585A (ja) * | 1993-10-01 | 1997-04-08 | オプティクス エルピー | 分析物濃度および対象物の光学的特性の非分光測光測定 |
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THE CHEMICAL SOCIETY OF JAPAN KOEN YOKUSHU (2F7-31), vol. 81, no. 1, 11 March 2002 (2002-03-11), pages 446, XP002962363 * |
THE JAPAN SOCIETY FOR ANALYTICAL CHEMISTRY NENKAI KOEN YOSHISHU (2I01) (2I02), vol. 50, 9 November 2001 (2001-11-09), pages 211, XP002962364 * |
Cited By (7)
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JPWO2003044498A1 (ja) | 2005-03-24 |
AU2002349700A1 (en) | 2003-06-10 |
JP4128143B2 (ja) | 2008-07-30 |
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