WO1995025279A1 - Charge pour chromatographie en phase liquide haute performance et procede d'elaboration de cette charge - Google Patents
Charge pour chromatographie en phase liquide haute performance et procede d'elaboration de cette charge Download PDFInfo
- Publication number
- WO1995025279A1 WO1995025279A1 PCT/JP1995/000490 JP9500490W WO9525279A1 WO 1995025279 A1 WO1995025279 A1 WO 1995025279A1 JP 9500490 W JP9500490 W JP 9500490W WO 9525279 A1 WO9525279 A1 WO 9525279A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filler
- derivative
- polysaccharide derivative
- polysaccharide
- carrier
- Prior art date
Links
Classifications
-
- 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
-
- 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
- B01J20/28085—Pore diameter being more than 50 nm, i.e. macropores
-
- 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
- B01J20/29—Chiral phases
-
- 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
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
-
- 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
- B01J20/3217—Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond
- B01J20/3219—Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond involving a particular spacer or linking group, e.g. for attaching an active 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
- 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
- B01J20/3268—Macromolecular compounds
- B01J20/3272—Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
- B01J20/3274—Proteins, nucleic acids, polysaccharides, antibodies or antigens
-
- 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
- B01J20/3289—Coatings involving more than one layer of same or different nature
-
- 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
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- 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
-
- 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
- B01J2220/58—Use in a single column
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31975—Of cellulosic next to another carbohydrate
Definitions
- the present invention relates to a filler for high performance liquid chromatography and a method for producing the same. More specifically, it is a filler obtained by coating a polysaccharide derivative on a carrier, characterized in that the amount of eluate derived from the polysaccharide derivative is small, and a filler for high-performance liquid chromatography. It concerns the manufacturing method.
- the filler for high-performance liquid chromatography contributes to the improvement of the quality of the fractionated product in the field of optical isomer fractionation.
- the present invention provides a high-performance liquid chromatograph with a small amount of eluted material, without removing the eluted material derived from the polysaccharide derivative by using a solvent after coating the polysaccharide derivative on a carrier.
- An object of the present invention is to provide a method for easily and inexpensively obtaining a filler for graphite.
- Fillers for high-performance liquid chromatography can be broadly classified into two types: chemically-bonded fillers and coated fillers.
- the amount of eluate derived from a substance having a separating ability is generally small because a substance having a separating ability is chemically bonded to a carrier.
- a packing material for high-performance liquid chromatography composed of a polysaccharide derivative coated on a carrier is suitable for separating optical isomers, and it is known that the separation ability is extremely excellent.
- Japanese Unexamined Patent Publication No. 60-08 2.858, Japanese Unexamined Patent Publication No. 60-108.751, Japanese Unexamined Patent Application Publication No. 60-142,930, etc. Japanese Unexamined Patent Application Publication No. 60-142,930, etc.
- high-performance liquid chromatographic packing materials obtained by coating this polysaccharide derivative on a carrier may not be used depending on the mobile phase used. Polymer in relatively low molecular weight region of conductor elutes, base line of chromatogram is not stable, eluted material is mixed in preparative products during preparative operation, long time When used, there were difficulties such as deterioration of separation performance.
- the present inventors have intensively studied to solve such problems, and as a result, after coating a multiple derivative on a carrier, the carrier was washed with a certain solvent. As a result, it was found that the eluate derived from the polysaccharide derivative was removed, and that the intended filler could be obtained without lowering the separation ability, and the present invention was completed.
- the present invention relates to a high-performance liquid chromatograph, which is a filler obtained by coating a polysaccharide derivative on a carrier, wherein the amount of eluate derived from the polysaccharide derivative is small. Provide one-time filler.
- the polysaccharide derivative is a cellulose derivative.
- Polysaccharide derivative is cellulose, amylose, -1,4-chitosan, chitin; 9-1,4-mannan and yS-1.4—from bovine silane
- the polysaccharide derivative has 80% to 100% of the hydroxyl groups of the polysaccharide substituted by a substituent, and the polysaccharide derivative has a urethane bond forming a urethane bond and an ester forming a sterol bond.
- ester derivatives or ether derivatives having an ether bond formed and the polysaccharide derivative is a moiety having a degree of polymerization of 50 to 100 Or the polysaccharide derivative has a degree of polymerization of 500 or less.
- the present invention provides a method for producing a packing material for high-performance liquid chromatography, in which a polysaccharide derivative is coated on a carrier and washed with a solvent.
- the eluate derived from the polysaccharide derivative is removed by washing, and the amount of the eluted material derived from the polysaccharide derivative is reduced to n-hexane by a filler packed in a column having an inner diameter of lcm and a length of 25 cm.
- the solvent is aliphatic hydrocarbon, lower alcohol or a mixture thereof, and the solvent is aliphatic hydrocarbon having 18 carbon atoms, lower alcohol having 14 carbon atoms or A mixture of these or wash at a temperature of 50-70 ° C.
- a polysaccharide derivative is coated on a carrier, and the optical isomer is separated and fractionated by high-performance liquid chromatography using a filler having a small amount of the eluate derived from the polysaccharide derivative.
- the present invention also provides a method for coating and a method in which a polysaccharide derivative is coated on a carrier, and a filler having a small amount of eluate derived from the polysaccharide derivative is used for separation and separation of optical isomers.
- the polysaccharide in the present invention may be any of natural or synthetic polysaccharides as long as it is optically active, but preferably has a high degree of regularity in the binding mode, so that a high-purity polysaccharide can be easily prepared. It can be obtained at any time.
- the polysaccharide derivative in the present invention refers to a compound in which 80 to 100% of the hydroxyl groups of the polysaccharide have been replaced by substituents. More specifically, it may be a forcebamate derivative in which a urethane bond is formed, a ⁇ ⁇ ster derivative in which a ⁇ ster bond is formed, a ⁇ 1 derivative in which a ⁇ ster bond is formed, or the like. However, in the present invention, in particular, a caprate derivative is preferably applied.
- the main cause of the eluate in question is a cellulose derivative in a relatively low molecular weight region having a degree of polymerization of around 50-100. Therefore, even if it is not monodisperse, there are few cellulosic derivatives in the low molecular weight region in this range and many in the high molecular weight region. Ideally, a cellulose derivative should be used.
- the carrier used in the present invention includes a porous organic carrier or a porous inorganic carrier, and is preferably a porous inorganic carrier.
- Suitable examples of the porous organic carrier include polymeric substances composed of polystyrene, polyacrylamide, polyacrylate, and the like.
- Suitable examples of the porous inorganic carrier include synthetic or natural substances such as silica, alumina, magnesium, titanium oxide, glass, gaylate, and kaolin, and polysaccharides.
- Surface treatment may be performed to improve the affinity with the derivative. Examples of the surface treatment method include a silanization treatment using an organic silane compound and a surface treatment method using plasma polymerization.
- the polysaccharide derivative is coated on a carrier by dissolving the polysaccharide derivative in an organic solvent, mixing the carrier with this solution, thoroughly mixing, and then distilling off the organic solvent. And the like.
- the carrier used in the present invention is porous and it is necessary to support the polysaccharide derivative inside the pores, it is better that the viscosity of the solution in which the polysaccharide derivative is dissolved is low. Therefore, the degree of polymerization of the polysaccharide derivative used is suitably 500 or less. Therefore, among these polysaccharide derivatives, polysaccharide derivatives having a degree of polymerization of about 50 to 100, which are the main factors of the above-mentioned eluted substances, are present.
- the polysaccharide derivative on the filler obtained by coating the polysaccharide derivative on the carrier has a very thin (several tens of ounces) film shape.
- the cleaning solvent is preferably a solvent used as a mobile phase when a filler is used for high-performance liquid chromatography.
- the filler of the present invention is generally used for aliphatic hydrocarbons such as n-hexane and ethanol, 2-propanol and the like. Since a mixed solution with a lower alcohol is used as a mobile phase, these solvents are preferably used as a washing solution for the filler of the present invention.
- an aliphatic hydrocarbon a lower alcohol or a mixture thereof is preferably used.
- n-hexane is preferred from the viewpoint of the effects on the boiling point, viscosity, and coating layer, but n-hexane or isooctane may also be used. it can.
- 2-propanol is preferred from the same point of view, but ethanol, 1-prono, 1-nor, 1-butanol, etc. can also be used.
- the amount of the cleaning solution the strength depends on the amount of the filler used. Generally, it is preferable to use 30 to 50 ml of the cleaning solution for the filler lg.
- the washing temperature is higher at a higher temperature, but is preferably about 50 to 70 ° C. in consideration of the thermal stability of the polysaccharide derivative.
- the washing time is preferably at least 3 hours under the above conditions.
- the packing material for high-performance liquid chromatography has a very small amount of eluted material; the indicator is a packing material packed in a column with an inner diameter of 1 cm and a length of 25 cm.
- Hexane 2-propanol 9 1 (volume ratio) 564 ml of a solution passed through the mixture at a flow rate of 4.7 ml / min and a temperature of 40 ° C is collected, concentrated and dried to measure. 0. lmg or less.
- the polysaccharide derivative-coated filler according to the present invention has an extremely small amount of eluate derived from the polysaccharide derivative, as compared with a polyderivative-coated filler that is not usually washed with a solvent. For this reason, in the case of fractionation of optical isomers and the like, a high-quality product can be obtained without mixing of eluted substances derived from polysaccharide derivatives into the fractionated product. In the case of analysis, the chromatogram base line does not drift and the time required for stabilization is short, so the analysis time is shortened and the mobile phase requires less solvent. .
- Table 1 shows the results of elemental analysis of the raw material silica gel, Filler A ', and Filler A. It was as follows.
- Filler A was filled into a stainless steel column with a cnu length of 25 cni, and a packed column of filler A (hereinafter referred to as column A) was prepared.
- a packing column of the above-mentioned unwashed filler A ′ (hereinafter referred to as column A ′) was prepared in the same manner as in Example 1.
- Filler B ′ was washed with a solvent in the same manner as in Example 1 to prepare a washed filler (hereinafter referred to as “filler B”).
- Elemental analysis of Filler B 'and Filler B was as shown in Table 1.
- a column filled with the filler B (hereinafter referred to as column B) was produced in the same manner as in Example 1 using the filler B.
- a packing column of the above-mentioned unwashed filler B ′ (hereinafter referred to as column B ′) was produced in the same manner as in Example 2.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/537,912 US5736259A (en) | 1994-03-17 | 1995-03-17 | Packing material for high-performance liquid chromatography and process for producing the same |
EP95912469A EP0699902B1 (en) | 1994-03-17 | 1995-03-17 | Filler for high-performance liquid chromatography and method of manufacturing the same |
KR1019950705099A KR100188456B1 (ko) | 1994-03-17 | 1995-03-17 | 고속액체 크로마토그래피용 충전제 및 그 제조법 |
DE69533100T DE69533100T2 (de) | 1994-03-17 | 1995-03-17 | Füllstoff für hochleistungsflüssigkeitschromatographie und methode zur dessen herstellung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6047053A JPH07260762A (ja) | 1994-03-17 | 1994-03-17 | 高速液体クロマトグラフィー用充填剤及びその製造法 |
JP6/47053 | 1994-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995025279A1 true WO1995025279A1 (fr) | 1995-09-21 |
Family
ID=12764426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/000490 WO1995025279A1 (fr) | 1994-03-17 | 1995-03-17 | Charge pour chromatographie en phase liquide haute performance et procede d'elaboration de cette charge |
Country Status (7)
Country | Link |
---|---|
US (1) | US5736259A (ja) |
EP (1) | EP0699902B1 (ja) |
JP (1) | JPH07260762A (ja) |
KR (1) | KR100188456B1 (ja) |
CN (1) | CN1099034C (ja) |
DE (1) | DE69533100T2 (ja) |
WO (1) | WO1995025279A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5965026A (en) * | 1995-12-21 | 1999-10-12 | Daicel Chemical Industries, Ltd. | Packing material for high-performance liquid chromatography |
FR2755879B1 (fr) * | 1996-11-19 | 1999-01-08 | Inst Francais Du Petrole | Dispositif d'equilibrage de pression et de rincage dans une enceinte |
US7090775B2 (en) * | 2001-07-06 | 2006-08-15 | Daicel Chemical Industries, Ltd. | Separation agent for separating optical isomer and method for preparation thereof |
FR2834227A1 (fr) * | 2001-12-27 | 2003-07-04 | Chiralsep Sarl | Materiaux supports optiquement actifs, leur procede de preparation et leurs utilisations |
JP3866179B2 (ja) * | 2002-10-09 | 2007-01-10 | ダイセル化学工業株式会社 | 光学異性体分離用充填剤の製造方法 |
CN101151529B (zh) * | 2005-03-31 | 2011-12-07 | 大赛璐化学工业株式会社 | 旋光异构体分离剂 |
WO2010148191A2 (en) * | 2009-06-17 | 2010-12-23 | Board Of Regents, The University Of Texas System | Compositions and methods for cyclofructans as separation agents |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0475893B2 (ja) * | 1985-02-06 | 1992-12-02 | Daicel Chem | |
JPH05148163A (ja) * | 1992-04-17 | 1993-06-15 | Daicel Chem Ind Ltd | 分離剤 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL113985C (ja) * | 1957-01-28 | |||
US3141875A (en) * | 1961-03-15 | 1964-07-21 | Fmc Corp | Crystallite aggregates disintegrated in acid medium |
JPS6082858A (ja) * | 1983-10-13 | 1985-05-11 | Daicel Chem Ind Ltd | 光学分割用吸着剤 |
JPS60108751A (ja) * | 1983-11-18 | 1985-06-14 | Daicel Chem Ind Ltd | 分離剤 |
JPS60142930A (ja) * | 1983-12-28 | 1985-07-29 | Daicel Chem Ind Ltd | 分離剤 |
US5489387A (en) * | 1984-03-29 | 1996-02-06 | Daicel Chemical Industries, Ltd. | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide |
US4912205A (en) * | 1986-03-20 | 1990-03-27 | Daicel Chemical Industries, Ltd. | Alkyl-substituted phenylcarbamate derivative of polysaccharide |
JP2648516B2 (ja) * | 1989-07-27 | 1997-09-03 | ダイセル化学工業株式会社 | 立体異性体の分離法 |
JP2841546B2 (ja) * | 1989-09-25 | 1998-12-24 | 東ソー株式会社 | 液体クロマトグラフィー用充填剤 |
JPH0475893A (ja) * | 1990-07-17 | 1992-03-10 | Mitsubishi Electric Corp | 産業用ロボット |
US5491223A (en) * | 1991-02-28 | 1996-02-13 | Daicel Chemical Industries, Ltd. | Polysaccharide derivative and separating agent |
EP0527236B1 (en) * | 1991-03-04 | 1998-08-12 | Daicel Chemical Industries, Ltd. | Process for preparing a cellulose derivative |
US5496437A (en) * | 1993-06-10 | 1996-03-05 | Ceram Incorporated | Reactive ion etching of lead zirconate titanate and ruthenium oxide thin films |
-
1994
- 1994-03-17 JP JP6047053A patent/JPH07260762A/ja active Pending
-
1995
- 1995-03-17 US US08/537,912 patent/US5736259A/en not_active Expired - Lifetime
- 1995-03-17 WO PCT/JP1995/000490 patent/WO1995025279A1/ja active IP Right Grant
- 1995-03-17 EP EP95912469A patent/EP0699902B1/en not_active Revoked
- 1995-03-17 DE DE69533100T patent/DE69533100T2/de not_active Expired - Lifetime
- 1995-03-17 CN CN95190185.0A patent/CN1099034C/zh not_active Expired - Lifetime
- 1995-03-17 KR KR1019950705099A patent/KR100188456B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0475893B2 (ja) * | 1985-02-06 | 1992-12-02 | Daicel Chem | |
JPH05148163A (ja) * | 1992-04-17 | 1993-06-15 | Daicel Chem Ind Ltd | 分離剤 |
Also Published As
Publication number | Publication date |
---|---|
EP0699902B1 (en) | 2004-06-02 |
DE69533100T2 (de) | 2004-09-30 |
EP0699902A1 (en) | 1996-03-06 |
CN1099034C (zh) | 2003-01-15 |
JPH07260762A (ja) | 1995-10-13 |
DE69533100D1 (de) | 2004-07-08 |
US5736259A (en) | 1998-04-07 |
KR960702614A (ko) | 1996-04-27 |
EP0699902A4 (en) | 1996-08-28 |
CN1124523A (zh) | 1996-06-12 |
KR100188456B1 (ko) | 1999-06-01 |
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