WO2001098772A1 - Method for separating hydroxide ion and method for analyzing hydroxide ion and ion chromatograph - Google Patents
Method for separating hydroxide ion and method for analyzing hydroxide ion and ion chromatograph Download PDFInfo
- Publication number
- WO2001098772A1 WO2001098772A1 PCT/JP2001/005277 JP0105277W WO0198772A1 WO 2001098772 A1 WO2001098772 A1 WO 2001098772A1 JP 0105277 W JP0105277 W JP 0105277W WO 0198772 A1 WO0198772 A1 WO 0198772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ion
- hydroxide
- ions
- hydroxide ions
- hydroxide ion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/96—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation using ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
- B01D15/365—Ion-exclusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/42—Selective adsorption, e.g. chromatography characterised by the development mode, e.g. by displacement or by elution
- B01D15/424—Elution mode
- B01D15/426—Specific type of solvent
Definitions
- the present invention relates to a method for separating and analyzing hydroxide ions (OH-) and an ion chromatography apparatus therefor.
- Hydroxide ion ( ⁇ H—) is the most basic and important substance in various fields including life science, and without considering the existence and chemical behavior of this hydroxide ion, It is impossible to understand the disassembly of life processes and the chemical reactions, chemical equilibrium, and electrochemical phenomena involving solution systems. However, despite the fact that hydroxide ions are such a fundamentally important substance, it has been extremely difficult or impossible to date to separate them. Thus, the invention of this application overcomes the limitations of the prior art described above, and provides a new method for selectively separating and analyzing hydroxide ions (OH). It is an object of the present invention to provide a chromatography apparatus.
- a hydroxide ion (OH—) separation method comprising separating a hydroxide ion (OH—) in an aqueous solution by chromatography.
- the separation color is characterized in that the substance recognizing the hydroxide ion (OH—) of the catalyst is a substance having a carboxyl group (CO'0 ").
- the third is a hydrogen carbonate ion, a carbonate ion,
- a separation method characterized by using an aqueous solution containing at least one of borate ions and phosphate ions as an eluate.
- hydroxide ion analysis method characterized by quantitatively analyzing the hydroxide ion (OH—) separated by the method according to any of the first to third inventions. provide.
- the invention of the present application provides an ion chromatography apparatus comprising a column for separating hydroxide ions ( ⁇ H_) in an aqueous solution and a means for supplying an eluate thereof.
- an ion chromatography apparatus characterized in that the substance recognizing hydroxide ion (OH—) in the separation column is a substance having a lipoxyl group (COO-one).
- An ion chromatography apparatus characterized in that the eluate contains at least one of hydrogen carbonate ion, carbonate ion, borate ion and phosphate ion.
- An ion chromatography apparatus provided with an analysis means is provided.
- FIG. 1 is a diagram showing a complex of a hydroxide ion (OH) and a water molecule.
- FIG. 2 is a diagram showing a configuration example of the ion chromatography apparatus of the present invention.
- FIG. 3 is a diagram separation results hydroxide ions shows an example (Example 1) in the case of the N a HC0 3 solution as eluent.
- FIG. 4 is a diagram showing another example (Example 2) different from FIG.
- FIG. 6 is a diagram showing the results of another example of separating hydroxide ions (Example 4).
- FIG. 7 is a diagram illustrating a relationship between the elution time of hydroxide ions and the concentration of the eluate electrolyte (Example 5).
- FIG. 8 is a diagram showing the result of separation of hydroxide ions (Example 6) when the electric conductivity meter is used as a detector.
- FIG. 9 is a diagram showing the same results as in FIG. 8 for the case of a UV detector.
- a substance (stationary phase) having a carboxyl group (CO ⁇ -) as a functional group is suitably used.
- a commercially available anion exclusion column having a carboxyl group (COO) as a functional group is directly used as a substance that recognizes a hydroxide ion (OH). be able to.
- a modified surface of a highly hydrophobic stationary phase with a polymer such as a hydrophobic polymer having olepoxyl groups (COO) is used as an example.
- the functional group of the stationary phase is not limited to a carbonyl group (COO—).
- any material may be used as long as it can constitute a stationary phase having the same function as the carboxyl group (COO ").
- an aqueous solution containing hydroxide ions as the eluent mobile phase in order to elute hydroxide ions ( ⁇ H) distributed to the separation column stationary phase into the mobile phase again. is there.
- an aqueous electrolyte solution with a relatively high pH as the eluate as the mobile phase include an aqueous solution containing at least one of hydrogen carbonate ion, carbonate ion, borate ion, and phosphate ion, or various other types.
- an aqueous solution of N AHC_ ⁇ 3 containing bicarbonate ions can be cited as one of the good optimal ones.
- the pH of these eluates is not limited, but is generally about 7.5 to 10.5, more preferably about 8.1 to 9.2.
- the hydroxide ion (OH) separated by the method of the present application can be detected or quantified directly or indirectly by using an electric conductivity method, a light absorption method, or other methods.
- Detection signals e.g., electrical conductivity or optical absorbance
- the strength of the is proportional to the concentration of hydroxide ion
- a calibration curve is linear (e.g. ⁇ 2> 0.9 9 9 8).
- the detection range extends from alkaline solutions to neutral and acidic solutions.
- FIG. 2 shows an example of the configuration.
- a high pH electrolyte eluate reservoir (2) a device for introducing the eluate into a separation column, (3) a sample injection section, and (4) a hydroxide ion
- the separation unit and (5) a hydroxide ion detector can be used as a basic configuration.
- the hydroxide ion of the NaOH aqueous solution was separated using 10 OmM aqueous sodium hydrogen carbonate solution (pH 8.79) as an eluent.
- As the separation column a commercially available column for negative ion exclusion ion chromatography (length, 30 Omm, inner diameter 7.6 mm), which has a functional group of carbonyl group (c ⁇ —) as a functional group, was used. The results are shown in FIG.
- the sample concentrations correspond to 1.0 mM (left), 10. OmM (middle), and lO OmM (right).
- the detector used was an electric conductivity meter, and the flow rate of the mobile phase of the eluate was 1.0 mL / min.
- a commercially available anion-exclusion ion chromatography column (length, 300 mm, inner diameter 7.6 mm) with a carboxyl group (CO ⁇ —) as a functional group was used.
- Fig. 4 shows the results. In Fig. 4, the sample concentrations correspond to 1. OmM (left), 10. OmM (middle), and 100 mM (right).
- the detector used was a UV detector (210 nm), and the flow rate of the mobile phase of the eluate was 1. OmLZmin.
- the eluent mobile phase was converted to a 40 mM aqueous sodium hydrogen carbonate solution, and Modified a commercially available ODS column for reverse-phase HP LC (length, 250 mm, ID, 4.6 mm) with [1-N + (R 3 — CH 2 — CH 2 — C ⁇ _)] The results were shown in Figure 6.
- the flow rate of the mobile phase of the eluate was 1.0 mLZmin, and the sample was 100.
- OmMKOH was used
- the detector was an electric conductivity meter.
- the invention of this application enables accurate measurement and separation of hydroxide ions, which could not be realized by the conventional methods, that is, the pH titration method and the pH meter method. It can greatly contribute to various fields, including research in the chemical industry, environmental science, and life science. It is also possible to selectively concentrate and extract only hydroxide ions from substances containing a large amount of hydroxide ions.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01941134A EP1312917A4 (en) | 2000-06-20 | 2001-06-20 | METHOD OF DISCONNECTING THE HYDROXIDION AND METHOD FOR ANALYZING THE HYDROXIDION AND ION CHROMATOGRAPH |
| CA002413569A CA2413569A1 (en) | 2000-06-20 | 2001-06-20 | Method for separating hydroxide ion and method for analyzing hydroxide ion and ion chromatograph |
| AU2001274573A AU2001274573A1 (en) | 2000-06-20 | 2001-06-20 | Method for separating hydroxide ion and method for analyzing hydroxide ion and ion chromatograph |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-185292 | 2000-06-20 | ||
| JP2000185292A JP3839641B2 (ja) | 2000-06-20 | 2000-06-20 | 水酸化物イオンの分離方法と分析方法並びにイオンクロマトグラフィー装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001098772A1 true WO2001098772A1 (en) | 2001-12-27 |
Family
ID=18685628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/005277 Ceased WO2001098772A1 (en) | 2000-06-20 | 2001-06-20 | Method for separating hydroxide ion and method for analyzing hydroxide ion and ion chromatograph |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20030173295A1 (ja) |
| EP (1) | EP1312917A4 (ja) |
| JP (1) | JP3839641B2 (ja) |
| CN (1) | CN1226622C (ja) |
| AU (1) | AU2001274573A1 (ja) |
| CA (1) | CA2413569A1 (ja) |
| WO (1) | WO2001098772A1 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002372521A (ja) * | 2001-06-14 | 2002-12-26 | Tosoh Corp | イオンクロマトグラフ法を用いるアルカリ度の測定方法および1価陽イオンとの同時測定方法 |
| CN119563107A (zh) | 2022-07-29 | 2025-03-04 | 三井金属矿业株式会社 | 设备以及具备其的氢氧化物离子浓度的测定装置及使用其的氢氧化物离子浓度的测定方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169058A (ja) * | 1982-03-31 | 1983-10-05 | Yokogawa Hokushin Electric Corp | 陰イオンの分析方法およびその装置 |
| JPS6076664A (ja) * | 1983-10-01 | 1985-05-01 | Toyo Soda Mfg Co Ltd | 陰イオンの分析法 |
| JPS61194355A (ja) * | 1985-02-25 | 1986-08-28 | Yokogawa Electric Corp | 微量陰イオンの測定方法およびその装置 |
| JPH01113656A (ja) * | 1987-10-27 | 1989-05-02 | Yokogawa Electric Corp | 陰イオン分析装置 |
| JPH03152456A (ja) * | 1989-11-09 | 1991-06-28 | Fuji Electric Co Ltd | 触媒中の陰イオン分析方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4154801A (en) * | 1978-02-01 | 1979-05-15 | The Dow Chemical Company | Process for purifying alkali metal hydroxide or carbonate solutions |
| JP2669255B2 (ja) * | 1992-04-01 | 1997-10-27 | 株式会社日立製作所 | ヘモグロビン類の分析方法,分析装置およびそれに用いるカラム劣化抑制液 |
| US6482305B1 (en) * | 1999-09-01 | 2002-11-19 | Archer-Daniels-Midland Company | Electrodialysis water splitting process |
-
2000
- 2000-06-20 JP JP2000185292A patent/JP3839641B2/ja not_active Expired - Fee Related
-
2001
- 2001-06-20 WO PCT/JP2001/005277 patent/WO2001098772A1/ja not_active Ceased
- 2001-06-20 CA CA002413569A patent/CA2413569A1/en not_active Abandoned
- 2001-06-20 EP EP01941134A patent/EP1312917A4/en not_active Withdrawn
- 2001-06-20 CN CN01811485.7A patent/CN1226622C/zh not_active Expired - Fee Related
- 2001-06-20 AU AU2001274573A patent/AU2001274573A1/en not_active Abandoned
- 2001-06-20 US US10/311,617 patent/US20030173295A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169058A (ja) * | 1982-03-31 | 1983-10-05 | Yokogawa Hokushin Electric Corp | 陰イオンの分析方法およびその装置 |
| JPS6076664A (ja) * | 1983-10-01 | 1985-05-01 | Toyo Soda Mfg Co Ltd | 陰イオンの分析法 |
| JPS61194355A (ja) * | 1985-02-25 | 1986-08-28 | Yokogawa Electric Corp | 微量陰イオンの測定方法およびその装置 |
| JPH01113656A (ja) * | 1987-10-27 | 1989-05-02 | Yokogawa Electric Corp | 陰イオン分析装置 |
| JPH03152456A (ja) * | 1989-11-09 | 1991-06-28 | Fuji Electric Co Ltd | 触媒中の陰イオン分析方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1312917A1 (en) | 2003-05-21 |
| JP3839641B2 (ja) | 2006-11-01 |
| AU2001274573A1 (en) | 2002-01-02 |
| CN1226622C (zh) | 2005-11-09 |
| EP1312917A4 (en) | 2006-01-04 |
| CA2413569A1 (en) | 2002-12-20 |
| JP2002005916A (ja) | 2002-01-09 |
| CN1437706A (zh) | 2003-08-20 |
| US20030173295A1 (en) | 2003-09-18 |
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