WO2014002748A1 - 光透過性粒子測定方法及び光透過性粒子測定装置 - Google Patents
光透過性粒子測定方法及び光透過性粒子測定装置 Download PDFInfo
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- WO2014002748A1 WO2014002748A1 PCT/JP2013/066062 JP2013066062W WO2014002748A1 WO 2014002748 A1 WO2014002748 A1 WO 2014002748A1 JP 2013066062 W JP2013066062 W JP 2013066062W WO 2014002748 A1 WO2014002748 A1 WO 2014002748A1
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- 239000002245 particle Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 68
- 230000002776 aggregation Effects 0.000 claims abstract description 21
- 238000004220 aggregation Methods 0.000 claims abstract description 19
- 125000000524 functional group Chemical group 0.000 claims abstract description 19
- 238000007689 inspection Methods 0.000 claims abstract description 13
- 150000004676 glycans Chemical class 0.000 claims abstract description 11
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 11
- 239000005017 polysaccharide Substances 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000000975 dye Substances 0.000 claims abstract description 7
- 238000004043 dyeing Methods 0.000 claims abstract description 7
- 230000001678 irradiating effect Effects 0.000 claims abstract description 5
- 238000010186 staining Methods 0.000 claims description 53
- 239000000523 sample Substances 0.000 claims description 42
- 239000003795 chemical substances by application Substances 0.000 claims description 33
- 230000004931 aggregating effect Effects 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 10
- 239000012488 sample solution Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 53
- 229920000912 exopolymer Polymers 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 description 13
- 239000012528 membrane Substances 0.000 description 12
- 239000013535 sea water Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229920001285 xanthan gum Polymers 0.000 description 4
- 229940082509 xanthan gum Drugs 0.000 description 4
- 235000010493 xanthan gum Nutrition 0.000 description 4
- 239000000230 xanthan gum Substances 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 238000011088 calibration curve Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
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- 238000012545 processing Methods 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000011481 absorbance measurement Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 229950003937 tolonium Drugs 0.000 description 1
- HNONEKILPDHFOL-UHFFFAOYSA-M tolonium chloride Chemical compound [Cl-].C1=C(C)C(N)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 HNONEKILPDHFOL-UHFFFAOYSA-M 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
-
- 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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/82—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
-
- 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
- Y10T436/14—Heterocyclic carbon compound [i.e., O, S, N, Se, Te, as only ring hetero atom]
- Y10T436/142222—Hetero-O [e.g., ascorbic acid, etc.]
- Y10T436/143333—Saccharide [e.g., DNA, etc.]
Definitions
- the present invention relates to a method and an apparatus for measuring light-transmitting particles made of biological polysaccharides having a negatively charged functional group such as light-transmitting extracellular polymer particles (TEP (Transparent® Exopolymer® Particles)).
- TEP Transparent® Exopolymer® Particles
- seawater is pretreated using a UF membrane (ultrafiltration membrane) and / or MF membrane (microfiltration membrane), and then RO membrane (reverse)
- UF membrane ultrafiltration membrane
- MF membrane microfiltration membrane
- RO membrane reverse
- salt is separated by a osmotic membrane
- the conventional TEP measurement includes (1) a filtration step for filtering the collected sample liquid, and (2) a staining step for dyeing TEP by adding a staining agent to the filtrate containing TEP separated by the filtration step. (3) an extraction step of extracting a dye and a combined TEP by adding sulfuric acid (H 2 SO 4 ) to the filtrate that has undergone the staining step; and (4) a stain extracted by the extraction step. And a TEP quantification step for quantifying TEP from the absorbance of the bound TEP.
- the present invention has been made to solve the above-mentioned problems all at once, and provides light-transmitting particles comprising a biologically derived polysaccharide having a negatively charged functional group such as light-transmitting extracellular polymer particles (TEP). Therefore, it is a main aim of the present invention to enable easy measurement without performing complicated measurement processing and to enable continuous measurement.
- TEP light-transmitting extracellular polymer particles
- the light-transmitting particle measuring method is a light-transmitting particle measuring method for measuring light-transmitting particles that are contained in a sample liquid and are made of a biologically derived polysaccharide having a negatively charged functional group.
- the light-transmitting particles are dyed with a staining agent, and the ionic strength of the sample liquid is reduced to aggregate the light-transmitting particles, thereby staining and aggregating.
- it detects scattered light from the light-transmitting particles can be easily measured without the need for complicated measurement processing, and can also perform continuous measurement and on-site measurement.
- the light-transmitting particles are light-transmitting extracellular polymer particles (TEP), and the staining step and the aggregation step are simultaneously performed by adding an Alcian blue liquid as the staining agent to the sample liquid.
- Alcian blue is positively charged and easily ionically binds to TEP having a negatively charged functional group and is suitable for staining TEP.
- the sample liquid is diluted by adding the Alcian blue liquid and its ionic strength is lowered, TEP is likely to aggregate.
- the TEP can be stained and aggregated simply by adding the Alcian blue liquid to the sample liquid, the TEP measurement process can be extremely simplified, and continuous measurement of the TEP becomes possible.
- a light-transmitting particle measuring apparatus for suitably realizing the above light-transmitting particle measuring method, a light-transmitting particle that is contained in a sample liquid and is composed of a biologically derived polysaccharide having a negatively charged functional group.
- a light-transmitting particle measuring apparatus for measuring, a staining agent adding means for adding to the sample liquid a staining agent that binds to a negatively charged functional group of the light-transmitting particles and stains the light-transmitting particles; Aggregating means for reducing the ionic strength of the sample liquid to aggregate the light transmissive particles, and irradiating the light transmitting particles dyed and aggregated by the staining agent adding means and the aggregation means with inspection light, thereby And turbidity measuring means for detecting the generated transmitted light and scattered light and measuring the turbidity of the sample liquid.
- Such a light-transmitting particle measuring apparatus can automatically measure light-transmitting particles contained in the sample liquid just by installing a cell containing the sample liquid.
- the light-transmitting particles are aggregated, so that the light intensity of the transmitted light and scattered light generated by the light-transmitting particles can be increased, The measurement accuracy of light transmissive particles can be improved.
- turbidity measurement is performed using transmitted light and scattered light, it is possible to reduce the measurement error caused by the stain adsorbed on the inner surface of the measurement cell and accurately measure the light transmissive particles. it can. Further, it is conceivable to measure the turbidity without aggregating the light-transmitting particles with a staining agent, but sufficient sensitivity cannot be obtained in the turbidity measurement. In the present invention, since the light transmissive particles are aggregated, the turbidity increases, the sensitivity can be sufficiently obtained, and the measurement accuracy can be improved.
- the staining agent addition means also serves as the aggregation means.
- light-transmitting particles composed of a biologically derived polysaccharide having a negatively charged functional group such as light-transmitting extracellular polymer particles (TEP) can be obtained without performing complicated measurement processing. Continuous measurement can be made possible.
- TEP extracellular polymer particles
- the experimental result graph which shows the relationship between TEP density
- the experimental result graph which shows the relationship between the TEP density
- the experimental result graph which shows the relationship between an Alcian blue density
- the experimental result graph which shows the relationship between ionic strength and sensitivity.
- TEP measuring device Light transmissive particle measuring device
- Measurement cell 2 ... Staining agent addition means 3 .
- Aggregation means 4 ... Turbidity measurement means 41 ... Light source L1 ... Inspection light L2 ... Transmission light L3 ... Scattering Light 42... Transmitted light detector 43... Scattered light detector 5.
- the light transmissive particle measuring apparatus 100 of the present embodiment is a TEP measuring apparatus that measures light transmissive extracellular polymer particles (TEP) that are light transmissive particles contained in seawater, industrial wastewater, domestic wastewater, or the like. It is.
- the light-transmitting extracellular polymer particles (TEP) are viscous polymer substances that cause biofilms, and have a negatively charged functional group on the surface, and are made of polysaccharides produced from organisms such as microorganisms.
- this is stored in the measurement cell S, and a staining agent addition means 2 for adding a staining agent for staining TEP to the sample liquid stored in the measurement cell S.
- Aggregating means 3 for aggregating TEP by reducing the ionic strength of the sample liquid, and TEP dyed and aggregated by the staining agent adding means 2 and the aggregating means 3 are irradiated with inspection light L1, and transmitted light L2 generated thereby
- And turbidity measuring means 4 for detecting scattered light L3 and measuring the turbidity of the sample liquid.
- the measurement cell S may be a batch type or a flow type.
- the staining agent addition means 2 of the present embodiment adds an alcian blue liquid as a staining agent having a positively charged functional group to the sample liquid in the measurement cell S, and contains the alcian blue liquid.
- a container 21 and a staining agent supply mechanism 22 having an on-off valve and a pump for supplying the alcian blue liquid in the staining container 21 to the measurement cell S are provided.
- the staining agent supply mechanism 22 is controlled by a control unit (not shown) based on a series of measurement sequences.
- the staining agent adding means 2 By this staining agent adding means 2, a staining agent is supplied into the measurement cell S, and TEP contained in the sample liquid is stained. At this time, when the alcian blue liquid is supplied to the measuring cell S by the staining agent adding means 2, the sample liquid is diluted or the ionic strength is reduced by the positively charged alcian blue liquid, and TEP aggregates. become. That is, the staining agent addition means 2 of this embodiment has a function as the aggregation means 3.
- the added amount of the Alcian blue liquid is such that a predetermined sensitivity is obtained by the turbidity measuring means 4 and TEP does not precipitate.
- the turbidity measuring means 4 includes a light source 41 that irradiates the sample liquid in the measurement cell S with the inspection light L1, a transmitted light detector 42 that detects the transmitted light L2 generated from the sample liquid irradiated with the inspection light L1, and The scattered light detector 43 that detects the scattered light L3 generated from the sample liquid irradiated with the inspection light L1, and the detection signals (light intensity signals) from the transmitted light detector 42 and the scattered light detector 43 are acquired, A turbidity calculating unit 44 for calculating turbidity from the light intensity signals.
- the turbidity measuring means 4 has a TEP concentration calculating unit 45 that calculates the TEP concentration based on the turbidity obtained by the turbidity calculating unit 44 and a calibration curve inputted in advance.
- the information processing device COM that exhibits the functions of the turbidity calculation unit 44 and the TEP concentration calculation unit 45 serves as a control unit that controls the light source 41 and a control unit that controls the staining agent supply mechanism 22. It is configured to demonstrate the functions of.
- the TEP measurement method of the present embodiment includes (1) a staining step in which an Alcian blue liquid is added to a sample solution, (2) an aggregation step in which TEP is aggregated by reducing the ionic strength of the sample solution, and (3) staining.
- a TEP concentration calculating step of calculating the TEP concentration from the measured turbidity The staining step and the aggregation step are the same step that is performed simultaneously by adding the Alcian blue solution to the sample solution.
- the inspection light L1 is irradiated from the light source 41 of the turbidity measuring means 4, and the transmitted light L2 generated by the irradiation of the inspection light L1 is transmitted by the transmitted light detector 42.
- the scattered light L3 is detected by the scattered light detector 43, and the turbidity calculating unit 44 uses the ratio of transmitted light intensity and scattered light intensity obtained by the respective photodetectors 42, 43, etc. Measure the turbidity of the sample solution.
- the TEP concentration calculation unit 45 calculates the concentration of TEP contained in the sample liquid from the turbidity obtained by the turbidity measurement step. Note that the calibration curve used for the calculation is stored in advance in a storage unit provided in an internal memory or the like of the information processing apparatus COM.
- FIG. 3 shows xanthan gum contained in a sample liquid when xanthan gum is used as a standard substance of TEP and dyed with 0.1% alcian blue liquid and the salt concentration of the sample liquid is 1.35%. The relationship between the concentration and turbidity is shown.
- the turbidity [NTU] obtained increases proportionally. Specifically, it can be seen that it increases at a rate of about 0.3 NTU / ppm. That is, it can be seen that the TEP concentration can be quantified using the turbidity measuring means 4.
- the relational expression of turbidity and concentration is the calibration curve described above.
- FIG. 4 shows the case where polystyrene is used as the interference component, and the case where the interference component is present is when 1 NTU is contained in the sample liquid. Other conditions are the same as those in FIG.
- the turbidity [NTU] obtained increases proportionally as the xanthan gum concentration increases from 0 ppm to 20 ppm. I understand. That is, it can be seen that the TEP concentration can be quantified using the turbidity measuring means 4 even when an interference component is present in the sample liquid.
- FIG. 5 shows changes in turbidity when an Alcian blue solution is added to a sample solution having a salt concentration of 13.5 g ⁇ L ⁇ 1 and a TEP concentration of 10 ppm.
- the turbidity increases as the concentration of the Alcian blue liquid increases.
- concentration of an Alcian blue liquid is enlarged, there exists a tendency for aggregation of TEP to be accelerated
- FIG. 6 shows the change in turbidity sensitivity when the ionic strength is changed by changing the amount of 0.2% Alcian Blue liquid added to the sample liquid having a TEP concentration of 10 ppm.
- the turbidity sensitivity increases as the ionic strength is decreased, and the sensitivity peaks at about 13.5 g ⁇ L ⁇ 1 . Thereafter, when the ionic strength is further reduced, the turbidity sensitivity is lowered. If the ionic strength is reduced too much in this way, the amount of TEP aggregation increases, TEP precipitates, and the turbidity sensitivity is considered to decrease.
- the salinity concentration at which the measurement sensitivity reaches a peak is about half the salinity concentration of seawater.
- the light transmissive particles are dyed with a staining agent, and the ionic strength of the sample liquid is reduced to aggregate the light transmissive particles.
- the scattered light of the light-transmitting particles stained and aggregated thereby is detected, and it is not necessary to perform a complicated measurement process, and continuous measurement (on-site measurement) is possible.
- the aggregation of the light-transmitting particles is easy, for example, by diluting the sample liquid and reducing its ionic strength.
- the TEP is aggregated, so that the light intensity of transmitted light L2 and scattered light L3 generated by TEP can be increased, and the measurement accuracy of TEP is improved. Can be made.
- the turbidity measurement is performed using the transmitted light L2 and the scattered light L3, the measurement error due to the stain adsorbed on the inner surface of the measurement cell S can be reduced, and the TEP can be measured with high accuracy.
- the TEP is aggregated by reducing the ionic strength, the turbidity increases, the sensitivity can be sufficiently obtained, and the measurement accuracy can be improved.
- the TEP can be dyed and aggregated simply by adding the Alcian blue solution to the sample solution, the TEP measurement process can be extremely simplified, and continuous measurement of TEP is possible.
- the present invention is not limited to the above embodiment.
- Alcian blue is used as the staining agent (dyeing agent).
- various staining agents can be used as long as they bind to the negatively charged functional group of the light transmitting particles such as TEP.
- toluidine blue liquid or colloidal iron liquid can be used.
- TEP is used as an example of the light transmissive particles, but any other light transmissive particles made of biological polysaccharides having a negatively charged functional group are applicable.
- a dyeing process and an aggregation process are performed simultaneously by using an Alcian blue liquid
- the staining step or the aggregation step may be performed first.
- the present invention it is possible to continuously measure light-transmitting particles made of a biologically derived polysaccharide having a negatively charged functional group such as light-transmitting extracellular polymer particles (TEP) without performing a complicated measurement process. It becomes possible.
- a biologically derived polysaccharide having a negatively charged functional group such as light-transmitting extracellular polymer particles (TEP)
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Abstract
Description
S・・・測定セル
2・・・染色剤添加手段
3・・・凝集手段
4・・・濁度測定手段
41・・・光源
L1・・・検査光
L2・・・透過光
L3・・・散乱光
42・・・透過光用光検出器
43・・・散乱光用光検出器
5・・・演算手段
Claims (3)
- サンプル液に含まれており、負電荷の官能基を有する生物由来の多糖からなる光透過性粒子を測定する光透過性粒子測定方法であって、
前記光透過性粒子の負電荷の官能基に結合して前記光透過性粒子を染色する染色剤を前記サンプル液に添加する染色工程と、
前記サンプル液のイオン強度を低下させて前記光透過性粒子を凝集させる凝集工程と、
前記染色工程及び前記凝集工程により染色及び凝集された光透過性粒子に検査光を照射し、それによって生じる散乱光を検出して、前記サンプル液の濁度を測定する濁度測定工程とを備える光透過性粒子測定方法。 - 前記光透過性粒子が、光透過性細胞外ポリマー粒子であり、
前記サンプル液中に前記染色剤としてアルシアンブルー液を添加することによって、前記染色工程及び前記凝集工程を同時に行う請求項1記載の光透過性粒子測定方法。 - サンプル液に含まれており、負電荷の官能基を有する生物由来の多糖からなる光透過性粒子を測定する光透過性粒子測定装置であって、
前記光透過性粒子の負電荷の官能基に結合して前記光透過性粒子を染色する染色剤を前記サンプル液に添加する染色剤添加手段と、
前記サンプル液のイオン強度を低下させて前記光透過性粒子を凝集させる凝集手段と、
前記染色剤添加手段及び前記凝集手段により染色及び凝集された光透過性粒子に検査光を照射し、それによって生じる透過光及び散乱光を検出して、前記サンプル液の濁度を測定する濁度測定手段とを備える光透過性粒子測定装置。
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DE201311003197 DE112013003197T5 (de) | 2012-06-25 | 2013-06-11 | Verfahren zum Messen optisch transparenter Teilchen und Vorrichtung zum Messen optisch transparenter Teilchen |
JP2014522519A JP6118799B2 (ja) | 2012-06-25 | 2013-06-11 | 光透過性粒子測定方法及び光透過性粒子測定装置 |
US14/410,031 US20150338333A1 (en) | 2012-06-25 | 2013-06-11 | Method for measuring optically transparent particles and device for measuring optically transparent particles |
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JP2016148545A (ja) * | 2015-02-10 | 2016-08-18 | 栗田工業株式会社 | 水中の高分子濃度の測定方法及び水処理方法 |
CN108398365A (zh) * | 2018-03-07 | 2018-08-14 | 佛山市诺瓦安评检测有限公司 | 煤尘职业接触浓度检测装置及检测方法 |
JP2023088157A (ja) * | 2021-12-14 | 2023-06-26 | 横河電機株式会社 | 濁度計及び濁度測定方法 |
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CN114324154A (zh) * | 2020-09-30 | 2022-04-12 | 阅美测量系统(上海)有限公司 | 一种分析沉积在滤片上颗粒的方法及其样品制备分析设备 |
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JPH0540118A (ja) * | 1991-08-06 | 1993-02-19 | Kobayashi Pharmaceut Co Ltd | 尿沈渣染色試薬およびその調製方法 |
JPH05505026A (ja) * | 1990-03-06 | 1993-07-29 | アルファーラヴァル セパレイション インコーポレイテッド | 濁度の測定 |
JPH07198605A (ja) * | 1993-12-28 | 1995-08-01 | Cosmo Sogo Kenkyusho:Kk | 懸濁液の粒子濃度の定量方法及びその装置 |
WO2008038329A1 (fr) * | 2006-09-25 | 2008-04-03 | Kowa Kabushiki Kaisha | Appareil de mesure de la gélification et cuve à échantillon |
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2013
- 2013-06-11 US US14/410,031 patent/US20150338333A1/en not_active Abandoned
- 2013-06-11 JP JP2014522519A patent/JP6118799B2/ja active Active
- 2013-06-11 WO PCT/JP2013/066062 patent/WO2014002748A1/ja active Application Filing
- 2013-06-11 DE DE201311003197 patent/DE112013003197T5/de not_active Withdrawn
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JPH05505026A (ja) * | 1990-03-06 | 1993-07-29 | アルファーラヴァル セパレイション インコーポレイテッド | 濁度の測定 |
JPH0540118A (ja) * | 1991-08-06 | 1993-02-19 | Kobayashi Pharmaceut Co Ltd | 尿沈渣染色試薬およびその調製方法 |
JPH07198605A (ja) * | 1993-12-28 | 1995-08-01 | Cosmo Sogo Kenkyusho:Kk | 懸濁液の粒子濃度の定量方法及びその装置 |
WO2008038329A1 (fr) * | 2006-09-25 | 2008-04-03 | Kowa Kabushiki Kaisha | Appareil de mesure de la gélification et cuve à échantillon |
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FATIBELLO S H S A ET AL.: "A rapid spectrophotometric method for the determination of transparent exopolymer particles (TEP) in freshwater", TALANTA, vol. 62, no. 1, 9 January 2004 (2004-01-09), pages 81 - 85 * |
FUKAO TSUYOSHI ET AL.: "Marine mucilage in Ariake Sound, Japan, is composed of transparent exopolymer particles produced by the diatom Coscinodiscus granii", FISH SCI, vol. 75, no. 4, July 2009 (2009-07-01), pages 1007 - 1014 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016148545A (ja) * | 2015-02-10 | 2016-08-18 | 栗田工業株式会社 | 水中の高分子濃度の測定方法及び水処理方法 |
CN108398365A (zh) * | 2018-03-07 | 2018-08-14 | 佛山市诺瓦安评检测有限公司 | 煤尘职业接触浓度检测装置及检测方法 |
JP2023088157A (ja) * | 2021-12-14 | 2023-06-26 | 横河電機株式会社 | 濁度計及び濁度測定方法 |
Also Published As
Publication number | Publication date |
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US20150338333A1 (en) | 2015-11-26 |
JP6118799B2 (ja) | 2017-04-19 |
DE112013003197T5 (de) | 2015-03-12 |
JPWO2014002748A1 (ja) | 2016-05-30 |
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