WO2006001300A1 - 高耐久性液体クロマトグラフィー用充填剤 - Google Patents
高耐久性液体クロマトグラフィー用充填剤 Download PDFInfo
- Publication number
- WO2006001300A1 WO2006001300A1 PCT/JP2005/011437 JP2005011437W WO2006001300A1 WO 2006001300 A1 WO2006001300 A1 WO 2006001300A1 JP 2005011437 W JP2005011437 W JP 2005011437W WO 2006001300 A1 WO2006001300 A1 WO 2006001300A1
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- WO
- WIPO (PCT)
- Prior art keywords
- liquid chromatography
- group
- packing material
- general formula
- compound
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3214—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating
- B01J20/3225—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating involving a post-treatment of the coated or impregnated product
- B01J20/3227—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating involving a post-treatment of the coated or impregnated product by end-capping, i.e. with or after the introduction of functional or ligand groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
- B01J20/286—Phases chemically bonded to a substrate, e.g. to silica or to polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
- B01J2220/54—Sorbents specially adapted for analytical or investigative chromatography
-
- 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
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/027—Liquid chromatography
-
- 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
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N2030/042—Standards
Definitions
- the present invention relates to a method for producing a packing material for liquid chromatography.
- Liquid chromatography is used in a wide range of fields as an important separation analysis method in the fields of pharmaceuticals, foods, natural compounds, and the like.
- many liquid chromatography fillers are obtained by chemically modifying the surface of porous silica gel having excellent mechanical strength, good quality, separation performance, etc. with a silanic compound.
- surface-modified silica gel those in which octadecyl groups are introduced into the surface silanol groups by chemical bonds (ODS) are the most common.
- Force introduction groups are octyl groups, butyl groups, methyl groups, etc. ing.
- the alkyl group may have a functional group such as a full group, a amino group, a cyano group, or a nitro group at the terminal.
- a silica gel surface is impregnated with a polysilazane such as perhydroxypolysilazane, and then the silica gel is fired at a ceramic surface.
- a method of chemically bonding a modifier silane compound to the coating see Patent Document 1
- a method of polymerizing a silicone compound having a hydrosilyl group on the surface of a silica gel to form a silicone polymer see Patent Document 2
- Patent Document 3 As a modifier silane compound, there has been proposed a method (Patent Document 3) using octadecyl di-tert-butyl silane in its structure.
- Patent Document 1 Japanese Patent Laid-Open No. 10-206407.
- Patent Document 2 JP 2003-149219 A.
- Patent Document 3 Japanese Patent Laid-Open No. 63-137750.
- An object of the present invention is to provide a highly durable packing material for liquid chromatography having excellent acid resistance and alkali resistance, as described above. Means for solving the problem
- the present inventor has carried out a chemical modification of the silica gel surface with a silane compound having a specific structure, and the following specific structure:
- a silane compound having a specific structure In combination with an end-cap reaction step using a bifunctional cyclic silazane compound having a viscosity, the characteristics of silica gel are not lost and the selectivity as a packing material for liquid chromatography is greatly changed.
- the present invention is a method in which the silica gel is chemically modified with a bifunctional silane compound represented by the general formula [I], and the resulting chemically modified silica gel is represented by the general formula [ ⁇ ].
- a method for producing a packing material for liquid chromatography which comprises performing an end cap reaction using a bifunctional cyclic silazane represented by the formula:
- x 1 and x 2 are the same or different and each represents a hydrogen atom, a halogen atom or an alkoxy group having 1 to 4 carbon atoms, R 1 may have a substituent, may be an alkyl group or a aryl group] Group. ]
- the halogen atom may be the same or different in X 1 and X 2 .
- R 2 and R 3 are the same or different and are alkyl groups having 1 to 4 carbon atoms, and n is a value indicating the number of units forming a ring and is an integer of 2 to 10. ]
- the present invention provides a liquid chromatography column using the liquid chromatography packing material obtained by the above method, an analysis method or a fractionation method using the column, particularly analysis of peptides or proteins contained in biological samples, or Provide sorting methods.
- the preferred raw silica gel used in the method of the present invention has an average particle diameter of usually 1 to: L000 ⁇ m, preferably 2 to 200 ⁇ m, and a pore diameter of usually 10 to: L0000 angstrom, preferably 50. It is a porous silica gel having a surface area of ⁇ 3000 angstrom and a surface area of usually 1 ⁇ : L000 m 2 / g, preferably 5 to 600 m 2 / g. To obtain high separation performance
- the raw silica gel is preferably a high purity and spherical one.
- the alkyl group as R 1 may be a linear alkyl group, a branched alkyl group, a cyclic alkyl group, or the like.
- R 1 is an alkyl group
- the carbon number is not particularly limited, but is preferably 1-30, more preferably 2-8.
- the aryl group as R 1 may be a phenol group, a tolyl group, a mesityl group, a naphthyl group or the like.
- the alkyl group as R 1 in the general formula [I] has an aryl group, an amino group (—NH 2), a cyan group (one CN) or a -toro group (one NO) at the terminal, or non- Amide group at the end (one NH — C (O)), carbamate group (OC (O) NH), carbamide group (NH— C (O) NH), ester group (—OC (O) —) or carbonate group (—OC (O)-o -) May be included.
- the bifunctional silane compound represented by the general formula [I] is a dialkylsilane or a diarylsilane having a hydrogen atom, a halogen atom or an alkoxyl group.
- silica gel chemically modified using a bifunctional silane compound general formula [I] as a chemical modifier is a conventional monofunctional silane compound. As a result, it has been found to be much more effective in improving durability compared to those chemically modified.
- the chemical modification reaction can be carried out under known methods and conditions, and the silica gel and the bifunctional silane compound [I] are heated and reacted in a solvent.
- the reaction temperature is preferably 60 200 ° C, more preferably 100 160 ° C, and the reaction may be carried out in the liquid phase.
- the solvent is not particularly limited, but aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene, which do not react with the bifunctional silane compound [I] and are stable at the reaction temperature, dichlorobenzene Substituted aromatic compounds such as are preferred.
- the reaction pressure is usually atmospheric pressure, but the reaction may be carried out under a pressure of 0.15 to 0.49 MPa.
- the reaction time is preferably 0.5 to 20 hours, more preferably 3 to 10 hours.
- the amount of the bifunctional silane compound [I] used is preferably 0.01 to 10, more preferably 0.05 to 1, in terms of the weight ratio of the difunctional silane compound [I] Z silica gel. It is also preferable to add a basic compound such as pyridine or imidazole to the reaction system.
- the bifunctional silane compound [I] has more reactive sites than the monofunctional one, and is more reactive and has side reactions than the trifunctional one. There is an advantage that it is less likely to occur.
- bifunctional silanic compound [I] particularly when two R 1 are the same and an alkyl group or aryl group having 4 to 30 carbon atoms is used, two R 1 Unlike when bifunctional silane compounds in which 1 is a different alkyl group or aryl group (for example, octadecylmethyldichlorosilane, n-octylmethyldichlorosilane, etc.) are used, the density of the alkyl group or aryl group is increased, which is advantageous for improving the hydrophobic force and separation ability, and further improving the durability.
- reaction solution after the chemical modification reaction may be used as it is for the next end-cubbing reaction, but the solid content may be taken out from the chemical modification reaction solution and washed and dried to be used for the force end-capping reaction. Good.
- reaction solution after the chemical modification reaction may be subsequently charged with an end-cabbing agent and reacted. However, after the chemical modification reaction, the unreacted bifunctional silane compound [I] is hydrolyzed. There is also.
- the end-cavating agent represented by the general formula [II] is a bifunctional cyclic silazane, preferably 1, 1, 3, 3, 5, 5-hexamethylcyclosilazane, 1 , 1, 3, 3, 5, 5, 7, 7-octamethylcyclotetrasilazane, 1, 1, 3, 3, 5, 5, 7, 7, 9, 9-decamethylcyclopentasilazane, 1 , 1, 3, 3, 5, 5, 7, 7, 9, 9,
- the end-cabinet agent [II] may be used in combination with the bifunctional silane compound represented by the general formula [III]!
- the ratio of the end-cabinet agent [II] and the bifunctional silane compound [III] is preferably 0. 0 by weight ratio of the end-cave agent [II] Z difunctional silane compound [III]. 5 or more, more preferably 1 or more.
- X 3 and X 4 are the same or different and are a hydrogen atom, a halogen atom or an alkoxyl group having 1 to 4 carbon atoms, and R 4 and R 5 are the same or different and represent an alkyl group having 1 to 4 carbon atoms. Kill group. ]
- bifunctional silane compound [ ⁇ ] examples include dimethyldichlorosilane and dimethyldimethoxysilane.
- the end-cabbing reaction can be carried out under a known method and conditions, and the reaction is carried out by heating the chemically modified silica gel and the end-cubbing agent in a solvent.
- the reaction temperature is preferably 60 to 200 ° C, more preferably 100 to 160 ° C, and the reaction may be carried out in the liquid phase.
- Solvents are not particularly limited, but aromatic hydrocarbons such as benzene, toluene, xylene, mesitylene, etc., substituted aromatic compounds such as dichlorobenzene, which do not react with the end-cabinet agent [II] and are stable at the reaction temperature. Is preferred.
- the reaction pressure is preferably atmospheric pressure, but the reaction may be carried out under a pressure of 0.15 to 0.49 MPa.
- Reaction time I is preferably 0.5 to 20 hours, more preferably 3 to 10 hours.
- the amount of the end-cabining agent [II] used is preferably 0.01 to 10, more preferably 0.05 to 1, in terms of the weight ratio of the end-cabining agent [II] Z chemically modified silica gel. It is also preferable to add a basic compound such as pyridine or imidazole to the reaction system. After the reaction, solid-liquid separation is performed, and the separated solid is sufficiently washed with a cleaning agent such as methanol and dried to obtain a packing material for liquid chromatography.
- the packing material for liquid chromatography according to the present invention has a long lifetime with high acid resistance and alkali resistance without changing the selectivity as a packing material for liquid chromatography without losing the properties of silica gel. This is therefore particularly suitable for the analysis and fractionation of biological samples containing peptides, proteins, etc.! / Speak.
- Spherical high-purity silica gel (Daiso 1 Gel SP-300 10P, average particle size 10 ⁇ m, pore size 300 angstrom, surface area 100 m 2 / g) azeotropically dehydrated in 150 ml toluene, n-Butyldichlorosilane (3.3 g) and pyridine (2.4 g) were added, and the mixture was heated to reflux for 5 hours. Subsequently, 0.8 g of 1,1,3,3,5,5 hexamethylcyclotrisilazane was added to this reaction solution as an end-cabining agent, and this mixture was refluxed for 5 hours to complete the end-cap reaction. The mixture was cooled to room temperature, filtered, washed with methanol, and dried to obtain 20 g of a filler for liquid chromatography.
- Comparative Example 1 20 g of the same spherical high-purity silica gel used in Example 1 (“Diiso-gel SP-300-10P”) was azeotropically dehydrated in 150 ml of toluene, and then 2.3 g of n-butyldimethylchlorosilane and 1.2 g of pyridine. And the mixture was heated to reflux for 5 hours. Subsequently, trimethylchlorosilane (2.Og) and pyridine (1.8g) were added to the reaction solution as an end-caving agent, and the mixture was refluxed for 5 hours to complete the end-cap reaction. After cooling to room temperature, filtration, methanol 20g of packing material for liquid chromatography was obtained through washing and drying with
- Example 2 20 g of the same spherical high-purity silica gel used in Example 1 (“Diiso-gel SP-300-10P”) was azeotropically dehydrated in 150 ml of toluene, and then 2.3 g of n-butyldimethylchlorosilane and 1.2 g of pyridine. And the mixture was heated to reflux for 5 hours. Subsequently, 1,1,3,3,5,5-hexamethylcyclotrisilazane 2. Og was added to the reaction solution as an end-cubbing agent, and the mixture was refluxed for 5 hours to carry out an end-capping reaction. After completion and cooling to room temperature, 20g of packing material for liquid chromatography was obtained through filtration, washing with methanol, and drying.
- Example 2 20 g of the same spherical high-purity silica gel used in Example 1 (“Daiso-gel SP-300-10P”) was azeotropically dehydrated in 150 ml toluene, and then 3.3 g of di-n-butyldichlorosilane and pyridine 2 4 g was added and the mixture was heated to reflux for 5 hours. Subsequently, 2.0 g of trimethylchlorosilane and 1.8 g of pyridine were added to the reaction solution as an end-cubbing agent, and the mixture was refluxed for 5 hours to complete the end-cap reaction. After cooling to room temperature, filtration, methanol 20g of packing material for liquid chromatography was obtained through washing and drying with
- Example 1 Each of the packing materials for liquid chromatography obtained in Example 1 and Comparative Examples 1 to 3 was packed into a stainless steel column having an inner diameter of 6. Omm and a length of 250 mm by a slurry method. Acid before and after passing through the mobile phase by liquid chromatography evaluation test. The retention time was measured using uracil and naphthalene as samples, and the retention coefficient (k) was calculated from the measured values.
- the end-cap modified silica gel is hydrolyzed by the acid, and the modifying group is eliminated from the base silica gel, thereby reducing the retention coefficient of the target compound.
- Table 1 when the bifunctional silane compound [I] is used as the chemical modifier and the bifunctional cyclic silazane [II] is used as the end-capping agent as in Example 1. The highest retention coefficient retention rate and carbon content retention rate were obtained after acid flow.
- Comparative Examples 1 to 3 the conventional monofunctionality is used for the chemical modifier and the Z or end-cabining agent.
- the retention time of naphthalene is t2.
- Example 2 Each of the packing materials for liquid chromatography obtained in Example 1 and Comparative Examples 1 to 3 was packed into a stainless steel column having an inner diameter of 6 mm and a length of 250 mm by a slurry method.
- the alkaline mobile phase was passed through the column to collect the entire amount of the eluent from the column, and the Si elution concentration was measured by elemental analysis of the recovered liquid. The results are shown in Table 2.
- ICP inductively coupled plasma optical emission spectrometry
- Example 1 and Comparative Example 1 Each of the liquid chromatography packing materials obtained in Example 1 and Comparative Example 1 was packed into a stainless steel column having an inner diameter of 6 mm and a length of 250 mm by a slurry method. A liquid chromatographic evaluation test was performed using a mixture of representative proteins as a standard sample. The liquid chromatography charts obtained in the protein separation test using the fillers of Example 1 and Comparative Example 1 are shown in FIGS. 1 and 2, respectively.
- the packing material for liquid chromatography of Example 1 prepared by using the bifunctional silane compound [I] as the chemical modifier and the difunctional cyclic silazane [II] as the end-cubbing agent
- the selectivity of the protein and its elution are as follows. Not only did the order not change, but it also became possible to separate trace impurities (see Fig. 1), which could not be separated in the past, and showed higher separation performance.
- FIG. 1 is a liquid chromatography chart of a protein separation test using the packing material for liquid chromatography obtained in Example 1.
- FIG. 2 is a liquid chromatography chart of a protein separation test using the liquid chromatography filler obtained in Comparative Example 1.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112005000098T DE112005000098T5 (de) | 2004-06-23 | 2005-06-22 | Hochbeständiges Packungsmaterial für die Flüssigchromatographie |
US10/574,419 US7537703B2 (en) | 2004-06-23 | 2005-06-22 | High-endurance packing material for liquid chromatography |
JP2006528556A JPWO2006001300A1 (ja) | 2004-06-23 | 2005-06-22 | 高耐久性液体クロマトグラフィー用充填剤 |
SE0600373A SE530132C2 (sv) | 2004-06-23 | 2006-02-21 | Mycket hållbart packningsmaterial för vätskekromatografi |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-184678 | 2004-06-23 | ||
JP2004184678 | 2004-06-23 |
Publications (1)
Publication Number | Publication Date |
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WO2006001300A1 true WO2006001300A1 (ja) | 2006-01-05 |
Family
ID=35781764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/011437 WO2006001300A1 (ja) | 2004-06-23 | 2005-06-22 | 高耐久性液体クロマトグラフィー用充填剤 |
Country Status (5)
Country | Link |
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US (1) | US7537703B2 (ja) |
JP (1) | JPWO2006001300A1 (ja) |
DE (1) | DE112005000098T5 (ja) |
SE (1) | SE530132C2 (ja) |
WO (1) | WO2006001300A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2219077A1 (en) | 2009-02-12 | 2010-08-18 | Carl Zeiss SMT AG | Projection exposure method, projection exposure system and projection objective |
JP4962490B2 (ja) * | 2006-03-29 | 2012-06-27 | ダイソー株式会社 | 修飾シリカゲル及びその利用 |
US9533245B2 (en) | 2011-10-25 | 2017-01-03 | Panasonic Corporation | Filter device and analysis device using same |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7537703B2 (en) * | 2004-06-23 | 2009-05-26 | Daiso Co., Ltd. | High-endurance packing material for liquid chromatography |
US20090111133A1 (en) * | 2007-10-31 | 2009-04-30 | Abbott Laboratories | Gel Filtration Standard |
US9442098B2 (en) * | 2012-08-02 | 2016-09-13 | Waters Technologies Corporation | Chromatographic system quality control reference materials |
US11628381B2 (en) | 2012-09-17 | 2023-04-18 | W.R. Grace & Co. Conn. | Chromatography media and devices |
ES2929099T3 (es) | 2014-05-02 | 2022-11-24 | Grace W R & Co | Material de soporte funcionalizado y métodos de fabricación y uso de material de soporte funcionalizado |
JP2018517559A (ja) | 2015-06-05 | 2018-07-05 | ダブリュー・アール・グレース・アンド・カンパニー−コーンW R Grace & Co−Conn | 吸着性バイオプロセス清澄化剤並びにその製造及び使用方法 |
CN114699799B (zh) * | 2022-03-03 | 2023-06-23 | 江苏汉德科技有限公司 | 一种具有离子交换特征的氨基甲酸酯色谱填料的制备方法 |
Citations (2)
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JPH04212058A (ja) * | 1990-02-22 | 1992-08-03 | Kagakuhin Kensa Kyokai | 液体クロマトグラフィー用充填剤の製造方法 |
JP2004271522A (ja) * | 2003-02-18 | 2004-09-30 | Daiso Co Ltd | 液体クロマトグラフィー用充填剤、その製造方法および用途 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4705725A (en) | 1986-11-28 | 1987-11-10 | E. I. Du Pont De Nemours And Company | Substrates with sterically-protected, stable, covalently-bonded organo-silane films |
EP0443860B1 (en) * | 1990-02-22 | 1994-02-09 | Chemicals Inspection & Testing Institute, Japan | Method for preparing liquid chromatograph packing material, and material produced thereby |
JP3691619B2 (ja) | 1997-01-20 | 2005-09-07 | ジーエルサイエンス株式会社 | 液体クロマトグラフィー用充填剤及びその処理方法 |
WO2003019177A1 (fr) | 2001-08-31 | 2003-03-06 | Shiseido Co., Ltd. | Garnissage de colonne et procede de production correspondant |
GB2413508B (en) * | 2003-02-10 | 2007-02-21 | Waters Investments Ltd | Siloxane-Immobilized particulate stationary phases for chromatographic separations and extractions |
CA2458133C (en) * | 2003-02-18 | 2011-12-20 | Daiso Co., Ltd. | Packings for liquid chromatography, process for preparing and usage |
US7537703B2 (en) * | 2004-06-23 | 2009-05-26 | Daiso Co., Ltd. | High-endurance packing material for liquid chromatography |
US20060175238A1 (en) * | 2005-02-10 | 2006-08-10 | Lautamo Roy M | Deactivated surfaces for chromatographic separations and methods of making and using the same |
-
2005
- 2005-06-22 US US10/574,419 patent/US7537703B2/en active Active
- 2005-06-22 JP JP2006528556A patent/JPWO2006001300A1/ja active Pending
- 2005-06-22 WO PCT/JP2005/011437 patent/WO2006001300A1/ja active Application Filing
- 2005-06-22 DE DE112005000098T patent/DE112005000098T5/de not_active Withdrawn
-
2006
- 2006-02-21 SE SE0600373A patent/SE530132C2/sv not_active IP Right Cessation
Patent Citations (2)
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JPH04212058A (ja) * | 1990-02-22 | 1992-08-03 | Kagakuhin Kensa Kyokai | 液体クロマトグラフィー用充填剤の製造方法 |
JP2004271522A (ja) * | 2003-02-18 | 2004-09-30 | Daiso Co Ltd | 液体クロマトグラフィー用充填剤、その製造方法および用途 |
Non-Patent Citations (1)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4962490B2 (ja) * | 2006-03-29 | 2012-06-27 | ダイソー株式会社 | 修飾シリカゲル及びその利用 |
EP2219077A1 (en) | 2009-02-12 | 2010-08-18 | Carl Zeiss SMT AG | Projection exposure method, projection exposure system and projection objective |
US9533245B2 (en) | 2011-10-25 | 2017-01-03 | Panasonic Corporation | Filter device and analysis device using same |
Also Published As
Publication number | Publication date |
---|---|
SE0600373L (sv) | 2006-04-21 |
DE112005000098T5 (de) | 2007-06-28 |
JPWO2006001300A1 (ja) | 2008-04-17 |
US7537703B2 (en) | 2009-05-26 |
SE530132C2 (sv) | 2008-03-04 |
US20080249326A1 (en) | 2008-10-09 |
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