WO2010071080A1 - ミックスモード型吸着剤 - Google Patents
ミックスモード型吸着剤 Download PDFInfo
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- WO2010071080A1 WO2010071080A1 PCT/JP2009/070722 JP2009070722W WO2010071080A1 WO 2010071080 A1 WO2010071080 A1 WO 2010071080A1 JP 2009070722 W JP2009070722 W JP 2009070722W WO 2010071080 A1 WO2010071080 A1 WO 2010071080A1
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- adsorbent
- target component
- hydrophilic monomer
- ion exchange
- monomer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
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- 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
- B01D15/32—Bonded phase chromatography
- B01D15/325—Reversed phase
- B01D15/327—Reversed phase with hydrophobic interaction
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- 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
- B01D15/38—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 and B01D15/30 - B01D15/36, e.g. affinity, ligand exchange or chiral chromatography
- B01D15/3847—Multimodal interactions
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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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/20—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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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
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
- B01J41/14—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/50—Chemical modification of a polymer wherein the polymer is a copolymer and the modification is taking place only on one or more of the monomers present in minority
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- 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
- G01N2030/009—Extraction
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- 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
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- 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
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/38—Flow patterns
- G01N30/46—Flow patterns using more than one column
- G01N30/468—Flow patterns using more than one column involving switching between different column configurations
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- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to an adsorbent used for sample pretreatment and separation of a target component and a method for using the same.
- the solid phase extraction method using a solid phase column is widely used for sample pretreatment, and the reverse phase column is widely used for separation.
- Conventional column adsorbents are generally based on a single mode mechanism such as reverse phase partitioning, ion exchange, chelate capture and the like. Reverse phase partitioning is not necessarily effective for polar compounds having both hydrophobic sites and ionic functional groups because they are captured only by hydrophobic interactions.
- ion exchange the target component of the sample is ionized 100% and exchanged with the ion component on the adsorbent. When the component is eluted, the component is further eluted using the exchange reaction.
- the pore size of the adsorbent particles is generally 10 nm or less, and in the case of a highly viscous sample such as a living body, food, processed food, etc., diffusion of the target component into the adsorbent pores is poor, and efficiency Good sample pretreatment is difficult, and clogging occurs between the pores and particles during solid phase extraction, which may prevent pretreatment quickly.
- a strong acid / organic solvent or a strong base / organic solvent is used to capture the target component in the sample, wash away the contaminated component as much as possible, and then elute the target component. May be needed in large quantities. Furthermore, the target component may not be eluted.
- the adsorbent of the present invention is a porous adsorbent based on a copolymer of a hydrophobic monomer and a hydrophilic monomer, and has an ion exchange functional group on the repeating unit of the hydrophilic monomer instead of the repeating unit of the hydrophobic monomer. Is the first feature.
- the present invention includes the following inventions.
- An adsorbent comprising a porous body of a polymer compound obtained by introducing an ion exchange group on a repeating unit derived from a hydrophilic monomer (B).
- hydrophilic monomer (B) capable of secondary reaction 20 glycidyl methacrylate, glycerin methacrylate, 3-chloro-2-hydroxypropyl methacrylate, 2-hydroxyethyl methacrylate or 2-chloroethyl methacrylate is used with respect to the total amount of monomers.
- a solid phase extraction cartridge comprising a filling container filled with the adsorbent according to any one of (1) to (9).
- a method for processing a sample solution comprising performing a solid phase extraction method or a column switching method using the cartridge for solid phase extraction according to (10) or (11).
- a method for treating a sample solution having a target component wherein the sample solution having the target component and the adsorbent of any one of (1) to (9) are adsorbed on the adsorbent.
- the method comprising isolating, separating, fractionating, cleaning up or removing the target component by contacting under conditions.
- a method for determining the amount of a target component of a sample solution by an analytical method wherein the target component and the adsorbent of any one of (1) to (9)
- the adsorbent on which the target component has been adsorbed is brought into contact with the adsorbent and washed under conditions such that the target component is released from the adsorbent.
- Said method comprising determining the amount of said target component present by analytical techniques.
- the sample solution is blood, plasma, urine, cerebrospinal fluid, synovial fluid, tissue extract, ground water, ground water, drinking water, soil extract, food substance, food substance extract, plant extract, Or the method of any one of (13) to (16), which is an extract of processed food.
- the adsorbent of the present invention has both good trapping force due to hydrophobic interaction and trapping force due to ion exchange, the target component in the sample solution can be trapped effectively.
- the adsorbent of the present invention is a copolymer obtained by copolymerizing a hydrophobic monomer (A), a hydrophilic monomer (B) capable of secondary reaction, and a hydrophilic monomer (C) having hydrogen bonding properties.
- a hydrophobic monomer A
- a hydrophilic monomer B
- a hydrophilic monomer C
- For solid phase extraction comprising a porous body of a polymer compound obtained by introducing an ion exchange group on a repeating unit derived from the hydrophilic monomer (B), preferably comprising the porous body Of adsorbents.
- Preferred embodiments of the present invention are described in detail below.
- hydrophobic monomer (A) is not particularly limited as long as it is a hydrophobic monomer that is copolymerized with the hydrophilic monomer (B) (C) to be copolymerized, but it has a polymerizable double bond, particularly 2 or more.
- Aromatic compounds having a vinyl group are preferred.
- divinylbenzene, divinyltoluene, divinylxylene, divinylnaphthalene, trivinylnaphthalene and the like can be mentioned.
- other hydrophobic monomers such as styrene may be used.
- the hydrophilic monomer (B) capable of secondary reaction is a monomer that can be polymerized with the hydrophobic monomer (A) and the hydrophilic monomer (C), and an ion exchange group is introduced into the monomer. It refers to a monomer having a functional group (for example, epoxy group) that is reactive and does not participate in copolymerization and can impart hydrophilicity.
- the “secondary reaction” refers to a reaction in which an ion exchange group is further introduced onto the functional group after copolymerization.
- the hydrophilic monomer (B) is not particularly limited, and examples thereof include glycidyl methacrylate, glycerin methacrylate, 3-chloro-2-hydroxypropyl methacrylate, 2-hydroxyethyl methacrylate, 2-chloroethyl methacrylate, and glycidyl methacrylate is particularly preferable. preferable.
- hydrophilic monomer (C) By exhibiting hydrogen bonding properties, hydrophilic monomer (C) is copolymerized for the purpose of imparting an interaction different from the hydrophilic interaction based on hydrophilic monomer (B) into which an ion exchange group has been introduced. .
- the hydrophilic monomer (C) is a monomer that can be polymerized with the hydrophobic monomer (A) and the hydrophilic monomer (B), and has a hydrogen bondable functional group (for example, an alkyl group-substituted amide). Group), N, N-dimethylacrylamide, N, N-diethylacrylamide or N-isopropylacrylamide is preferable.
- the hydrophobic monomer (A) is preferably contained in an amount of 50% by mass or more, particularly preferably 75% by mass or less, and secondary reaction is possible with respect to the total monomer amount.
- the hydrophilic monomer (B) is preferably contained in an amount of 20 to 50% by mass, and the hydrophilic monomer (C) showing hydrogen bonding properties is preferably contained in an amount of 5 to 10% by mass.
- the adsorbent hydrophobic monomer (A) / hydrophilic monomer hydrophilic monomer (hydrophilic monomer (B) capable of secondary reaction + hydrophilic monomer (C): (B) + (C)) capable of secondary reaction)
- the ratio (mass ratio) is preferably 1/1 to 3/1, more preferably 2/1 to 3/1, and most preferably 2/1.
- the adsorbent of the present invention is obtained by first copolymerizing the above monomers (A) to (C) to form a porous polymer, and then derived from the hydrophilic monomer (B).
- an ion exchange group can be formed on the repeating unit by chemical modification.
- the copolymer can be prepared, for example, by the following procedure.
- a diluent to the monomer mixture having the blending ratio as described in 4 above for the purpose of imparting porosity.
- a diluent an organic solvent that dissolves in the monomer mixture but is inert to the polymerization reaction and does not dissolve the formed copolymer can be used.
- aromatic hydrocarbons such as toluene, xylene, ethylbenzene and diethylbenzene; alcohols such as hexanol, heptanol and octanol; aromatic halogenated hydrocarbons such as chlorobenzene and dichlorobenzene; ethyl acetate, butyl acetate and phthalate And aliphatic or aromatic esters such as dimethyl acid and diethyl phthalate.
- aromatic hydrocarbons such as toluene, xylene, ethylbenzene and diethylbenzene
- alcohols such as hexanol, heptanol and octanol
- aromatic halogenated hydrocarbons such as chlorobenzene and dichlorobenzene
- aliphatic or aromatic esters such as dimethyl acid and diethyl phthalate
- the porous particles of the copolymer can be produced by a suspension polymerization method.
- the polymerization initiator to be used is not particularly limited as long as it is a known radical polymerization initiator that generates radicals.
- 2,2′-azobisisobutyronitrile, 2,2′-azobis An azo initiator such as 2,4-dimethylvaleronitrile
- 2,4-dimethylvaleronitrile 2,4-dimethylvaleronitrile
- the polymerization reaction may be a suspension polymerization method in which a monomer solvent containing a diluent and a polymerization initiator is suspended and polymerized by stirring in an aqueous medium containing an appropriate dispersion stabilizer.
- a dispersion stabilizer known ones can be used, and examples thereof include water-soluble polymer compounds such as gelatin, sodium polyacrylate, polyvinyl alcohol, methyl cellulose, hydroxyethyl cellulose, and carboxymer cellulose.
- the salts include sodium chloride, calcium chloride, sodium sulfate and the like.
- the polymerization reaction is preferably performed by heating to 40 to 100 ° C. with stirring and reacting at atmospheric pressure for 4 to 10 hours.
- Separation of the copolymer particles after the reaction can be easily performed by filtration or the like, and after sufficient water washing, the diluent is removed with a solvent such as acetone or methanol and dried.
- the copolymer porous particles thus obtained typically have an average pore diameter of 15 to 50 nm, preferably 20 to 40 nm, and a specific surface area of 100 to 500 m 2 / g. Preferably, it is 200 to 300 m 2 / g. Since the adsorbent of the present invention has a larger pore size than conventional adsorbents, it can also be applied to highly viscous sample solutions prepared from living organisms, foods, processed foods and the like.
- the particle diameter of the copolymer porous particles is not limited and can be classified according to the purpose of use.
- the adsorbent of the present invention comprises a copolymer of a hydrophobic monomer (A), a hydrophilic monomer (B), and a hydrophilic monomer (C) (typically the copolymer).
- A hydrophobic monomer
- B hydrophilic monomer
- C hydrophilic monomer
- R1 ion exchange group
- ion exchange groups are introduced into at least some of the repeating units. It is preferable that the reactive group on the hydrophilic monomer (B) into which the ion exchange group is not introduced is converted into a hydrophilic group such as a hydroxyl group in the step of introducing the ion exchange group or the subsequent step.
- the ion exchange group (R1) can be introduced onto the hydrophilic monomer (B) via a covalent bond as follows.
- hydrophilic monomer (B) is a methacrylate compound
- the left end portion of each of the above structures is bonded to carbonyl to form an ester.
- a quaternary ammonium group, a secondary ammonium group and a carboxyl group are preferable.
- the quaternary ammonium group can be obtained by reacting a tertiary amine with the epoxy group or chloro group of the hydrophilic monomer (B) capable of secondary reaction.
- a tertiary amine trimethylamine, triethylamine, N, N-dimethylethylamine, N, N-dimethylethanolamine, N-methyldiethanolamine, N, N-dimethylisopropanolamine and the like can be used.
- the amount of quaternary ammonium groups introduced is 0.3 to 0.8 milliequivalent per gram, preferably about 0.5 milliequivalent.
- the secondary ammonium group can be obtained by reacting a primary amine with the epoxy group or chloro group of the hydrophilic monomer (B) capable of secondary reaction.
- primary amines polyamines such as ethylenediamine, propylenediamine, and diethylenetriamine can be used in addition to aliphatic amines such as methylamine, ethylamine, propylamine, and butylamine.
- the amount of secondary ammonium group introduced is 0.7 to 1.5 milliequivalent, preferably about 1.0 milliequivalent.
- the carboxyl group that becomes the cation exchange group should be introduced by reacting monochloroacetic acid under alkaline conditions with the hydroxyl group after opening the hydroxyl group or epoxy group of the hydrophilic monomer (B) capable of secondary reaction. Can do. Moreover, it can introduce
- the acid anhydride may be an aliphatic polybasic acid anhydride such as succinic acid anhydride or malonic acid anhydride, or an aromatic polybasic acid anhydride such as trimellitic acid anhydride or pyromellitic acid anhydride. it can.
- the amount of carboxyl group introduced is 0.7 to 1.5 milliequivalent, preferably about 0.9 milliequivalent.
- the adsorbent of the present invention can be used as a solid-phase extraction cartridge by filling packed containers such as columns, cartridges, and reservoirs.
- the solid phase extraction cartridge is particularly suitable for use in concentrating the target component and / or removing impurities.
- the adsorbent of the present invention By using the adsorbent of the present invention, from a sample solution showing a high viscosity containing complex contaminants such as living organisms, foods, processed foods, etc. (proteins, non-polar substances such as fats and amino acids) However, it becomes possible to capture and purify only the target component (drug, which is a polar compound) in the mixed mode. In addition, since the amount of eluate required for elution of the target components is small, pretreatment operations such as simultaneous concentration, cleanup, and fractionation of the target components required for analysis by HPLC and LC / MS can be performed easily and quickly. Can be done.
- the target component is isolated, separated, fractionated, cleaned up or removed by contacting the adsorbent of the present invention with a sample solution having the target component under conditions where the target component is adsorbed on the adsorbent. can do.
- the adsorbent of the present invention was brought into contact with a sample solution having the target component under conditions where the target component was adsorbed by the adsorbent, and the adsorbed target component was released by washing and then released into the cleaning liquid.
- the target component in the sample solution can be quantified.
- Table 1 shows the basic physical properties of the adsorbent with ion-exchange groups introduced in Example 1, the glycidyl group-opening diol type adsorbent, and the existing adsorbents for reference (Waters, OASIS WAX and WCX). Indicated.
- Formulas (1) to (3) show the basic chemical structures of the three types of ion-exchange group-introduced adsorbents obtained in Example 1.
- Example 2 (Effect of introducing ion exchange resin) Each resin obtained in Example 1 was loaded into a 4.6 ⁇ ⁇ 150 mm stainless steel column for HPLC. Various acidic and basic model compounds were used as samples, and the effects of hydrophobic retention and ion exchange interaction were compared with those of the adsorbent (EX1) into which no ion exchange group was introduced. Ibuprofen, ketoprofen, alprenolol, and quinidine were selected as model compounds. The structures of these model compounds are shown below.
- the flow rate was 2.0 mL / min, the temperature was 30 ° C., and the injection volume was 50 ⁇ L.
- Each compound was injected separately, and detection was performed using an ultraviolet absorption wavelength suitable for detection of the model compound.
- Table 2 shows a comparison of the retention time of the model compound between the adsorbent with an ion exchange group introduced and the adsorbent without the ion exchange group (EX1).
- Ibuprofen and ketoprofen which are acidic compounds and act on anion exchange reaction, had a longer retention time in the adsorbent with WAX and SAX added than the EX1 adsorbent. This indicates that anion exchange interaction is acting additionally. It was clearly found that this increase in retention time was due to bipedal capture of hydrophobic and anion exchange interactions.
- alprenolol and quinidine which are basic compounds and act on a cation exchange reaction, had a longer retention time in the adsorbent to which WCX was added than in the EX1 adsorbent. This indicates that the cation exchange interaction is acting additionally, and it is clearly found that it is due to the biped trapping of the hydrophobic interaction and the cation exchange interaction.
- EX1-WCX (cation exchange) adsorbent When EX1-WCX (cation exchange) adsorbent is used, the amount of eluent mobile phase to elute alprenolol and quinidine, which are basic compounds and undergo cation exchange reaction, is the same as the existing WCX. Less than that is shown in Table 3.
- adsorbent according to the present invention requires a smaller amount of eluate than existing ion exchange adsorbents, it has been found that simultaneous concentration, cleanup and fractionation of target components are quick, easy and effective.
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- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Sampling And Sample Adjustment (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
本発明において,疎水性モノマー(A)としては,共重合させる親水性モノマー(B)(C)と共重合する疎水性モノマーであれば特に限定されないが,重合性二重結合,特に2個以上のビニル基を有する芳香族化合物が好ましい。例えば,ジビニルベンゼン,ジビニルトルエン,ジビニルキシレン,ジビニルナフタレン,トリビニルナフタレンなどが挙げられる。これらの疎水性モノマー(A)と組み合わせて,スチレン等の他の疎水性モノマーが使用されても良い。
本発明において,二次反応が可能な親水性モノマー(B)とは,疎水性モノマー(A)および親水性モノマー(C)と重合可能なモノマーであって,イオン交換基が導入されることが可能な反応性の,共重合に関与しない官能基(例えばエポキシ基)を有し、親水性を付与することができるモノマーを指す。ここで「二次反応」とは、共重合後に更にイオン交換基を前記官能基上に導入する反応を指す。親水性モノマー(B)としては,特に限定されないが,例えばグリシジルメタクリレート,グリセリンメタクリレート,3-クロロ-2-ヒドロキシプロピルメタクリレート,2-ヒドロキシエチルメタクリレート,2-クロロエチルメタクリレートが挙げられ,グリシジルメタクリレートが特に好ましい。
水素結合性を示すことにより親水性モノマー(C)は,イオン交換基が導入された親水性モノマー(B)に基づく親水性相互作用とは異なる相互作用を付与することを目的として共重合される。親水性モノマー(C)としては,疎水性モノマー(A)および親水性モノマー(B)と重合可能なモノマーであって,水素結合性を有する,共重合に関与しない官能基(例えばアルキル基置換アミド基)を備えたものであれば特に限定されないが,N,N-ジメチルアクリルアミド,N,N-ジエチルアクリルアミドまたはN-イソプロピルアクリルアミドが好ましい。
共重合体中では,モノマー総量に対して,疎水性モノマー(A)は50質量%以上含まれることが好ましく,75質量%以下含まれることが特に好ましく,二次反応が可能な親水性モノマー(B)は20~50質量%含まれることが好ましく,水素結合性を示す親水性モノマー(C)は5~10質量%含まれることが好ましい。
本発明の吸着剤は,はじめに上記のモノマー(A)~(C)を共重合させて多孔質の重合体を形成し,次いで,親水性モノマー(B)から誘導された繰り返し単位上に,イオン交換基を化学修飾によって導入することにより形成することができる。共重合体は例えば以下の手順で調製することができる。
本発明の吸着剤は,疎水性モノマー(A)と,親水性モノマー(B)と,親水性モノマー(C)との共重合体(典型的には該共重合体の多孔質粒子)に,イオン交換基(R1)を付与できる化合物を作用させることにより調製することができる。
本発明の吸着剤は,カラム,カートリッジ,リザーバ等の充填容器に充填して,固相抽出用カートリッジとして使用することができる。固相抽出用カートリッジは,目的成分の濃縮および/または夾雑物の除去に使用するのに特に適している。
メタクリル酸グリシジル (和光試薬1級) 600g,N,N-ジメチルアクリルアミド (和光試薬特級) 100g及びジビニルベンゼン (新日鐵化学,純度57%) 1,300gを計り取り,イソアミルアルコール (和光試薬特級) 1,200g及び酢酸n-ブチル (和光試薬1級) 800gを計り取り,これらを攪拌混合する。混合溶液に,2,2’-アゾビス (イソブチロニトリル) (和光試薬特級) 20gを加え,攪拌して溶解させる。イオン交換水15Lに,メチルセルロース (25cP) 15gを溶解し,分散溶液とする。これら2種類の溶液を反応容器に入れ,攪拌羽根で攪拌して目的の粒子径に分散した後,80℃に保温しながら,6時間重合反応を続ける。重合反応終了後,生成した共重合体粒子をろ紙により濾別した後,イオン交換水,メタノールの順で洗浄後,乾燥させた。得られた共重合体粒子を振動ふるい機にて45~90μmに分級し,イオン交換基を導入する基材樹脂とした。また,参照として,得られた基材樹脂のグリシジル基を希硫酸で開環してジオール型とした樹脂 (EX1) も合成した。
イオン交換基を導入する基材樹脂50gを攪拌装置の付いた500mLのフラスコにいれ,20%イソプロピルアルコール水溶液200mL,N,N-ジメチルエタノールアミン100gを加え,攪拌しながら40℃で20時間反応させた。反応後,ろ紙で濾別し,イオン交換水で十分に洗浄を行い,次いでメタノールに置換後,乾燥させた。得られた四級アンモニウム基導入粒子を逆滴定法によりイオン交換容量を測定した結果,0.51ミリ当量/gであった。
N,N-ジメチルエタノールアミンをエチレンジアミンに変更した以外は,上記四級アンモニウム基の導入と全く同じ方法で二級アンモニウム基を導入した。得られた二級アンモニウム基導入粒子を逆滴定法によりイオン交換容量を測定した結果,0.95ミリ当量/gであった。
イオン交換基を導入する吸着剤粒子50gを攪拌装置の付いた500mLのフラスコにいれ,トリメリット酸無水物60g,ジメチルホルムアミド300mLを加え,攪拌しながら60℃で20時間反応させた。反応後,ろ紙で濾別し,ジメチルホルムアミド,イオン交換水の順で十分に洗浄し,次いでメタノールに置換後,乾燥させた。得られたカルボキシル基導入粒子を逆滴定法によりイオン交換容量を測定した結果,0.87ミリ当量/gであった。
実施例1によりイオン交換基が導入された吸着剤,グリシジル基を開環してジオール型とした吸着剤,及び参照となる既存品吸着剤 (Waters, OASIS WAX及びWCX) の基本物性を表1示した。
実施例1により得られたそれぞれの樹脂を4.6Φx150mmのHPLC用ステンレスカラム中にスラリー充填した。種々の酸性及び塩基性モデル化合物を試料として用いて,疎水性的保持及びイオン交換相互作用の効果に関して,イオン交換基が導入されていない吸着剤 (EX1)との比較を行った。モデル化合物には,イブプロフェン,ケトプロフェン,アルプレノロール,キニジンを選択した。これらのモデル化合物の構造を以下に示す。
実施例2と同様の方法を用いて,移動相pHを7として既存吸着剤との保持特性比較を行った。溶出液量値は,モデル化合物が吸着剤に保持されることで得られるクロマトグラムのピークから算出し,モデル化合物が溶出し終わった点,即ちベースラインと同じになる時間 (min) に流速 (2mL/min) を乗じて求めた。
Claims (17)
- 疎水性モノマー(A)と,二次反応が可能な親水性モノマー(B)と,水素結合性を示す親水性モノマー(C)とを共重合して得られる共重合体の,該親水性モノマー(B)から誘導された繰り返し単位上に,イオン交換基を導入してなる高分子化合物の多孔質体を含む吸着剤。
- 疎水性モノマー(A)として芳香族ジビニル化合物をモノマー総量に対して50質量%以上含む,請求項1の吸着剤。
- 二次反応が可能な親水性モノマー(B)としてグリシジルメタクリレート,グリセリンメタクリレート,3-クロロ-2-ヒドロキシプロピルメタクリレート,2-ヒドロキシエチルメタクリレートまたは2-クロロエチルメタクリレートをモノマー総量に対して20~50質量%含む,請求項1または2の吸着剤。
- 二次反応が可能な親水性モノマー(B)がグリシジルメタクリレートである,請求項3の吸着剤。
- 水素結合性を示す親水性モノマー(C)としてN,N-ジメチルアクリルアミド,N,N-ジエチルアクリルアミドまたはN-イソプロピルアクリルアミドをモノマー総量に対して5~10質量%含む,請求項1~4のいずれかの吸着剤。
- 多孔質体の平均細孔径が15~50nmであり,比表面積が100~500m2/gである,請求項1~5のいずれかの吸着剤。
- 多孔質体が粒子形状を有し,平均粒子径が3~100μmである,請求項1~6のいずれかの吸着剤。
- イオン交換基が,イオン交換基量が0.3~0.8ミリ当量となるように導入された四級アンモニウム基,イオン交換基量が0.7~1.5ミリ当量となるように導入された二級アンモニウム基,またはイオン交換基量が0.7~1.5ミリ当量となるように導入されたカルボキシル基である,請求項1~7のいずれかの吸着剤。
- 疎水性モノマー(A)と,二次反応が可能な親水性モノマー(B)と,水素結合性を示す親水性モノマー(C)とを共重合して得られる共重合体の,該親水性モノマー(B)から誘導された繰り返し単位上に,イオン交換基を導入してなる高分子化合物の,平均細孔径が15~50nmであり,比表面積が100~500m2/gである多孔質体を含む吸着剤。
- 請求項1~9のいずれかの吸着剤を充填容器に充填してなる固相抽出用カートリッジ。
- 目的成分の濃縮および/または夾雑物の除去に使用するための,請求項10の固相抽出用カートリッジ。
- 請求項10または11の固相抽出用カートリッジを使用して固相抽出法またはカラムスイッチング法を行うことを含む,試料溶液の処理方法。
- 目的成分を有する試料溶液の処理方法であって,目的成分を有する試料溶液と,請求項1~9のいずれかの吸着剤とを,該目的成分が該吸着剤に吸着される条件下において接触させることにより,該目的成分を単離,分離,フラクション,クリーンナップ又は除去することを含む,前記方法。
- 試料溶液の目的成分の量を分析手法により決定する方法であって,目的成分を有する試料溶液と,請求項1~9のいずれかの吸着剤とを,該目的成分が該吸着剤に吸着される条件下において接触させ,該目的成分が吸着された該吸着剤を,該吸着剤から該目的成分が放出されるような条件下において洗浄し,洗浄により生じた洗浄液中に存在する該目的成分の量を分析手法により決定することを含む,前記方法。
- 請求項1~9のいずれかの吸着剤が充填容器に充填された固相抽出用カートリッジの形態で使用される,請求項13または14の方法。
- 前記目的成分が,薬剤,農薬,除草剤,生体分子,毒物,汚染物質,代謝物,またはこれらの分解生成物である,請求項13~15のいずれかの方法。
- 前記試料溶液が,血液,血漿,尿,髄液,滑液,組織抽出物,地下水,地上水,飲料水,土壌抽出物,食糧物質,食糧物質の抽出物,植物の抽出物,または加工食品の抽出物である,請求項13~16のいずれかの方法。
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| DE112009004380T DE112009004380T5 (de) | 2008-12-15 | 2009-12-11 | Adsorbierendes Material in Mischform |
| CN2009801501870A CN102245304A (zh) | 2008-12-15 | 2009-12-11 | 混合模式型吸附剂 |
| US13/139,727 US20110247981A1 (en) | 2008-12-15 | 2009-12-11 | Mixed-mode adsorbent material |
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| JP2013537316A (ja) * | 2010-09-14 | 2013-09-30 | ナトリックス セパレイションズ インコーポレーテッド | キラル化合物精製用クロマトグラフィー膜 |
| JP2012120983A (ja) * | 2010-12-08 | 2012-06-28 | Toshiba Corp | 吸着材用アクリル系樹脂粒子、その製造方法、水処理用カラム、および水処理方法 |
| JP2012211110A (ja) * | 2011-03-31 | 2012-11-01 | Asahi Kasei Medical Co Ltd | 多孔質吸着膜 |
| US9327269B2 (en) | 2012-07-23 | 2016-05-03 | Daicel Corporation | Stationary phase |
| CN104812297B (zh) | 2012-08-31 | 2017-05-17 | 阿库图森医疗有限公司 | 导管系统及其医疗使用方法,包括心脏的诊断和治疗使用 |
| JP6193004B2 (ja) * | 2013-06-14 | 2017-09-06 | 株式会社日立ハイテクノロジーズ | 吸着材及びそれを用いた分析システム |
| WO2015199017A1 (ja) * | 2014-06-27 | 2015-12-30 | 日立金属株式会社 | 吸着部材 |
| WO2017048746A1 (en) * | 2015-09-15 | 2017-03-23 | Dow Global Technologies Llc | Method of purifying water |
| CN109642893B (zh) * | 2016-08-26 | 2021-02-19 | 昭和电工株式会社 | Hilic柱用填充剂、填充了该hilic柱用填充剂的hilic柱及使用了该hilic柱的寡糖的分析方法 |
| EP3783009A1 (en) * | 2017-02-10 | 2021-02-24 | Mitsubishi Chemical Corporation | Separating agent for human insulin purification and human insulin purification method |
| WO2018155241A1 (ja) * | 2017-02-27 | 2018-08-30 | 昭和電工株式会社 | サイズ排除クロマトグラフィー用の充填剤およびその製造方法 |
| CA3135773A1 (en) | 2019-06-04 | 2020-12-10 | Acutus Medical, Inc. | Systems and methods for performing localization within a body |
| CN112958055B (zh) * | 2021-01-29 | 2022-09-09 | 山东师范大学 | 一种水体污染物的吸附材料及其制备方法和质谱检测应用 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50114391A (ja) * | 1974-02-01 | 1975-09-08 | ||
| JP2001099819A (ja) * | 1999-09-30 | 2001-04-13 | Sekisui Chem Co Ltd | 液体クロマトグラフィー用充填剤 |
| JP2001343378A (ja) * | 2000-06-02 | 2001-12-14 | Showa Denko Kk | 固相抽出用充填剤及び固相抽出方法 |
| JP2002517574A (ja) * | 1998-06-12 | 2002-06-18 | ウォーターズ・インヴェストメンツ・リミテッド | 固相抽出及びクロマトグラフィー用の新規なイオン交換多孔質樹脂 |
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| US20050079506A1 (en) * | 2003-10-09 | 2005-04-14 | Eastman Kodak Company | Filled, biological microarray and method for use |
| AU2006256011B2 (en) * | 2005-06-09 | 2011-09-01 | Tosoh Corporation | Novel packing material with excellent hydrophilicity and process for producing the same |
-
2008
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50114391A (ja) * | 1974-02-01 | 1975-09-08 | ||
| JP2002517574A (ja) * | 1998-06-12 | 2002-06-18 | ウォーターズ・インヴェストメンツ・リミテッド | 固相抽出及びクロマトグラフィー用の新規なイオン交換多孔質樹脂 |
| JP2001099819A (ja) * | 1999-09-30 | 2001-04-13 | Sekisui Chem Co Ltd | 液体クロマトグラフィー用充填剤 |
| JP2001343378A (ja) * | 2000-06-02 | 2001-12-14 | Showa Denko Kk | 固相抽出用充填剤及び固相抽出方法 |
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| JP2010137207A (ja) | 2010-06-24 |
| CN102245304A (zh) | 2011-11-16 |
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