CN117531492B - 一种富集黄曲霉毒素的新型捕获柱及其制备方法 - Google Patents
一种富集黄曲霉毒素的新型捕获柱及其制备方法 Download PDFInfo
- Publication number
- CN117531492B CN117531492B CN202311704061.1A CN202311704061A CN117531492B CN 117531492 B CN117531492 B CN 117531492B CN 202311704061 A CN202311704061 A CN 202311704061A CN 117531492 B CN117531492 B CN 117531492B
- Authority
- CN
- China
- Prior art keywords
- column
- aflatoxin
- capillary
- hours
- rpm
- 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.)
- Active
Links
- 229930195730 Aflatoxin Natural products 0.000 title claims abstract description 25
- 239000005409 aflatoxin Substances 0.000 title claims abstract description 25
- XWIYFDMXXLINPU-UHFFFAOYSA-N Aflatoxin G Chemical compound O=C1OCCC2=C1C(=O)OC1=C2C(OC)=CC2=C1C1C=COC1O2 XWIYFDMXXLINPU-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004005 microsphere Substances 0.000 claims abstract description 28
- 238000012856 packing Methods 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 10
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- CTENFNNZBMHDDG-UHFFFAOYSA-N Dopamine hydrochloride Chemical compound Cl.NCCC1=CC=C(O)C(O)=C1 CTENFNNZBMHDDG-UHFFFAOYSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- 229960001149 dopamine hydrochloride Drugs 0.000 claims description 4
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 229940072033 potash Drugs 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 235000015320 potassium carbonate Nutrition 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 238000009210 therapy by ultrasound Methods 0.000 claims description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 4
- 239000012498 ultrapure water Substances 0.000 claims description 4
- 239000000872 buffer Substances 0.000 claims description 3
- 239000012295 chemical reaction liquid Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- BHHCZVFCISJWIX-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethyl 2-methylprop-2-enoate;oxiran-2-ylmethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1CO1.CC(=C)C(=O)OCCOC(=O)C(C)=C BHHCZVFCISJWIX-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000002470 solid-phase micro-extraction Methods 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 abstract 1
- 229920001690 polydopamine Polymers 0.000 description 23
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000011068 loading method Methods 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 238000000520 microinjection Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 230000005526 G1 to G0 transition Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000001819 mass spectrum Methods 0.000 description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004853 microextraction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000013076 target substance Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 102100034212 AFG1-like ATPase Human genes 0.000 description 1
- 102100034213 ATPase family protein 2 homolog Human genes 0.000 description 1
- 101100434480 Arabidopsis thaliana AFB2 gene Proteins 0.000 description 1
- 101100449517 Arabidopsis thaliana GRH1 gene Proteins 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 101000780581 Homo sapiens AFG1-like ATPase Proteins 0.000 description 1
- 101000780587 Homo sapiens ATPase family protein 2 homolog Proteins 0.000 description 1
- 101100434479 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) AFB1 gene Proteins 0.000 description 1
- OQIQSTLJSLGHID-WNWIJWBNSA-N aflatoxin B1 Chemical compound C=1([C@@H]2C=CO[C@@H]2OC=1C=C(C1=2)OC)C=2OC(=O)C2=C1CCC2=O OQIQSTLJSLGHID-WNWIJWBNSA-N 0.000 description 1
- WWSYXEZEXMQWHT-WNWIJWBNSA-N aflatoxin B2 Chemical compound C=1([C@@H]2CCO[C@@H]2OC=1C=C(C1=2)OC)C=2OC(=O)C2=C1CCC2=O WWSYXEZEXMQWHT-WNWIJWBNSA-N 0.000 description 1
- 229930020125 aflatoxin-B1 Natural products 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229960003638 dopamine Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- RLQWHDODQVOVKU-UHFFFAOYSA-N tetrapotassium;silicate Chemical compound [K+].[K+].[K+].[K+].[O-][Si]([O-])([O-])[O-] RLQWHDODQVOVKU-UHFFFAOYSA-N 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- B01J20/282—Porous sorbents
- B01J20/285—Porous sorbents based on polymers
-
- 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 - B01D15/36
- B01D15/3804—Affinity 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
- 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
- B01J20/28011—Other properties, e.g. density, crush strength
-
- 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
- B01J20/28014—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 form
- B01J20/28016—Particle form
- B01J20/28021—Hollow particles, e.g. hollow spheres, microspheres or cenospheres
-
- 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
- G01N30/06—Preparation
- G01N30/08—Preparation using an enricher
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
本发明提供一种富集黄曲霉毒素的新型捕获柱及其制备方法。捕获柱包括毛细管和毛细管内的颗粒柱填料,填料为用聚多巴胺包覆甲基丙烯酸缩水甘油酯‑乙二醇二甲基丙烯酸酯微球(poly(GMA‑co‑EGMDA))制备得到的poly(GMA‑co‑EGMDA)@PDA。poly(GMA‑co‑EGMDA)@PDA具有多孔、亲水、机械性能好及化学性质稳定、灵敏度高、重现性好、富集倍数高等的优点,对多种黄曲霉毒素有亲和性,适用于制备用于黄曲霉毒素进行IT‑SPME的色谱填料。
Description
技术领域
本发明属于色谱领域,具体涉及一种富集黄曲霉毒素的新型捕获柱及其制备方法。
背景技术
管内固相微萃取(IT-SPME)是色谱分离技术的一个重要分支,其原理是利用毛细管内固定相的结合特性吸附目标产物并实现微量浓缩、自动样品净化和快速在线分析。该技术已广泛应用于环境、药物、食品、生物分析。IT-SPME的分离能力与固相基质的选择和制备有关,同时改变上样、洗涤和洗脱过程中的条件也会影响富集的效果,表现在灵敏度、重现性、上样量、使用寿命和适用范围等方面。
IT-SPME成功的关键是固定相。多孔硅胶和聚合物微球是目前最常用的色谱填料。然而,硅胶一般只能在PH=2-8时使用,且其对目标物质的不可逆吸附不能满足分离要求。当前用于黄曲霉毒素分析中样品前处理的商品化捕获柱通常是基于免疫亲和微萃取柱,价格较为昂贵且只能一次性使用,而且对目标物质进行的富集是离线进行的,需要进行手动操作,自动化程度低。另外,无论是免疫亲和微萃取柱,还是目前常规的IT-SPME,对溶剂的使用量依然较高(毫升级),在经济和环保方面仍有不足之处。因此研发一种高亲和、低溶剂消耗(微升级)的捕获柱用于黄曲霉毒素的IT-SPME,对于提升相关分析的经济性和环保性具有很大的意义。
发明内容
本发明的第一个目的是提供一种富集黄曲霉毒素的捕获柱填料的制备方法,为用聚多巴胺包覆甲基丙烯酸缩水甘油酯-乙二醇二甲基丙烯酸酯微球。
优选地,所述用聚多巴胺包覆甲基丙烯酸缩水甘油酯-乙二醇二甲基丙烯酸酯微球包括如下步骤:
1)将聚苯乙烯单分散微球、甲苯超声加入由邻苯二甲酸二丁酯和十二烷基硫酸钠溶液制备的乳化液中,搅拌,得混合液;
2)将甲基苯烯酸缩水甘油酯、乙二醇二甲基丙烯酸酯、过氧化二苯甲酰加入到十二烷基硫酸钠水溶液中,在氮气保护下搅拌混匀,加入步骤1)的混合液,搅拌;加入聚乙烯醇溶液,在氮气保护下进行加热反应;用甲醇洗涤;加入四氢呋喃加热冷凝回流;用甲醇洗涤后真空干燥;
3)将等质量的步骤2)的产物与盐酸多巴胺加入到Tris-Cl缓冲液,于暗处搅拌,用超纯水洗涤,真空干燥得聚多巴胺包覆的甲基丙烯酸缩水甘油酯-乙二醇二甲基丙烯酸酯微球poly(GMA-co-EGMDA)@PDA。
优选地,具体步骤如下:
S1.取0.6mL邻苯二甲酸二丁酯加入到10mL 0.375wt%的十二烷基硫酸钠溶液中,超声处理1小时得到乳化液;
S2.分别将0.125g聚苯乙烯单分散微球、0.6mL甲苯超声加入S1的乳化液中,搅拌24小时,转速600rpm;
S3.取0.3mL甲基苯烯酸缩水甘油酯、1.708mL乙二醇二甲基丙烯酸酯、0.06g过氧化二苯甲酰,加入到10mL 0.25wt%的十二烷基硫酸钠水溶液中,在氮气保护下搅拌1小时混匀、转速600rpm,加入S2制备的混合液,继续搅拌24小时,转速600rpm;
S4.加入3.5mL 10wt%的聚乙烯醇溶液至S3制备的混合液中,在氮气保护下进行加热反应,温度70℃,转速120rpm,冷凝回流;
S5.将S4反应生成的材料用100mL甲醇洗涤3次,加入100mL四氢呋喃在80℃下加热冷凝回流,转速120rpm,用100mL甲醇洗涤3次,真空60℃干燥12小时;
S6.称取100mg步骤S5所得材料,与100mg盐酸多巴胺,加入到20mL 10mMpH8.5Tris-Cl缓冲液,于暗处600rpm搅拌12小时,随后用超纯水洗涤,真空60℃干燥12小时。
优选地,所述的0.125g聚苯乙烯单分散微球为2μm粒径,已分散于5mL水中。
本发明的第二个目的是提供上述制备方法制备得到的富集黄曲霉毒素的捕获柱填料。
本发明的第三个目的是提供上述捕获柱填料在制备富集黄曲霉毒素的捕获柱中的应用。
本发明的第四个目的是提供一种富集黄曲霉毒素的捕获柱的制备方法,其包括如下步骤:将钾水玻璃和甲酰胺混匀得到反应液;将毛细管插入反应液,吸取液柱后取出固化;将上述的捕获柱填料填充到毛细管中。
优选地,所述将上述的捕获柱填料填充到毛细管中具体为:将捕获柱填料悬浮于甲醇中,利用压力注射池填充到毛细管中,50psi压力,填充长度2cm。
优选地,所述钾水玻璃的模数为3.3,波美度为40;所述毛细管为弹性石英毛细管,内径为100微米,外径为360微米,长度为15厘米;所述固化为90℃烘箱中静置12小时固化。
本发明的第五个目的是提供上述的制备方法制备得到的富集黄曲霉毒素的捕获柱。
与现有技术相比,本发明所述的poly(GMA-co-EGMDA)@PDA微球毛细管捕获柱及其制备方法具有以下有益效果:
本发明的poly(GMA-co-EGMDA)@PDA具有多孔、亲水、机械性能好及化学性质稳定、灵敏度高、重现性好、富集倍数高等的优点。其含有环氧基活性基团,该基团具有活泼的化学性质,可用于多种化学修饰,制成带各种功能基团的色谱固定相,这允许将多巴胺分子在其表面修饰,形成聚多巴胺。聚多巴胺具有高度离域的π-π共轭体系,且其氨基和酚羟基等有助于和分析物产生较强的非共价相互作用(如氢键、疏水相互作用),基于这些特性,poly(GMA-co-EGMDA)@PDA微球具有对多种黄曲霉毒素的亲和性,适用于制备用于黄曲霉毒素进行IT-SPME的色谱填料。
本发明制备的poly(GMA-co-EGMDA)@PDA微球毛细管捕获柱,仅1g微球填料便可填装上百根捕获柱,填装步骤简单快速、重复性和良品率高、成本低。
本发明提供了一种新型poly(GMA-co-EGMDA)@PDA微球颗粒填充捕获柱,该柱形式上属于毛细管填充柱,制备工艺简单。本发明还制备出单分散性良好、交联度高且多孔的poly(GMA-co-EGMDA)@PDA微球,其机械性能化学性能稳定,多次使用后重现性良好。与现有技术中常见的微球或者磁性材料形式的富集材料相比,本亲和色谱柱能与微升级液相系统联用,并与自动进样系统相结合,实现了对样品上样、洗涤、洗脱等过程的自动化操作,同时本发明对黄曲霉毒素的捕获能力、检测限、定量限也达到业界一流的水平。
附图说明
图1是poly(GMA-co-EGMDA)@PDA微球毛细管填充柱的横切面电镜图,分别为100μm及2μm的尺度。
图2是poly(GMA-co-EGMDA)@PDA微球毛细管填充柱富集2ng黄曲霉毒素的一级质谱图,四个峰从左到右依次为AFG2、AFG1、AFB2、AFB1。
具体实施方式
以下实施例是对本发明的进一步说明,而不是本发明的限制。
实施例1:poly(GMA-co-EGMDA)@PDA微球的制备
S1.取0.6mL邻苯二甲酸二丁酯(DBP)加入到10mL 0.375wt%的十二烷基硫酸钠(SDS)溶液中,超声(0.5W/cm2)处理1小时得到乳化液;
S2.分别将0.125g聚苯乙烯单分散微球(2μm粒径,已分散于5mL水中)、0.6mL甲苯超声加入上述步骤S1的乳化液中,搅拌24小时(转速600rpm);
S3.取0.3mL甲基苯烯酸缩水甘油酯(GMA)、1.708mL乙二醇二甲基丙烯酸酯(EGDMA)、0.06g过氧化二苯甲酰(BPO),加入到10mL 0.25wt%的十二烷基硫酸钠(SDS)水溶液中,在氮气保护氛围下搅拌1小时混匀(转速600rpm),加入上一步骤S2得到的混合液,继续搅拌24小时(转速600rpm);
S4.加入3.5mL 10wt%的聚乙烯醇溶液至步骤S3得到的混合液中,在氮气保护氛围下进行加热反应(温度70℃,转速120rpm,冷凝回流);
S5.将上述步骤S4反应生成的颗粒材料用100mL甲醇洗涤3次;
S6.将上步骤S5获得的颗粒材料,加入100mL四氢呋喃(THF)在80℃下加热冷凝回流(转速120rpm);
S7.将上述步骤S6反应生成的颗粒材料用100mL甲醇洗涤,3次,真空干燥12小时(60℃);
S8.称取100mg上述步骤S7所得材料,与100mg盐酸多巴胺,加入到20mL Tris-Cl缓冲液(10mM pH=8.5),于暗处搅拌12小时(转速600rpm),随后用超纯水洗涤,真空干燥12小时(60℃)得到poly(GMA-co-EGMDA)@PDA微球。
实施例2:poly(GMA-co-EGMDA)@PDA微球毛细管捕获柱的制备
S1.在离心管中加入360微升钾水玻璃(模数3.3,波美度40),再加入60微升甲酰胺,涡流混匀得到反应液。
S2.提前切取一批弹性石英毛细管(内径为100微米,外径为360微米,长度为15厘米),插入上述步骤S1的反应液中,利用毛细现象吸取约1cm的液柱后取出。将上述毛细管放入90℃烘箱中静置12小时固化,将固化后的筛板切至2-3mm长度。
S3.将实施例1制备好的poly(GMA-co-EGMDA)@PDA微球按10mg/mL悬浮于甲醇中,利用压力注射池填充到步骤S2固化后的毛细管中(50psi压力,填充长度2cm),得到poly(GMA-co-EGMDA)@PDA微球毛细管填充柱。
poly(GMA-co-EGMDA)@PDA微球毛细管填充柱的横切面电镜图如图1所示。
实施例3:poly(GMA-co-EGMDA)@PDA微球毛细管捕获柱对黄曲霉毒素的的富集能力
S1.利用微量注射泵推动100微升95%甲醇、0.1%FA溶液流经捕获柱,完成清洗。
S2.利用微量注射泵推动20微升4种黄曲霉毒素混合液(浓度为10μg/L(每种毒素))流经捕获柱,完成上样。
S3.利用微量注射泵推动100微升5%乙腈、0.1%FA溶液流经捕获柱整体柱,完成清洗。
S4.利用微量注射泵推动100微升95%乙腈、0.1%FA溶液流经捕获柱整体柱,将流出液与10倍流速的0.1%溶液在三通处混合,然后注入C18预柱(内径150μm、长2cm、填料粒径5μm),完成从捕获柱到C18预柱的样品转移。
S5.将纳流液相、C18预柱与C18分析柱(内径100μm、长15cm、填料粒径3μm)、nano喷针、nanoESI离子源及Orbitrap Fusion质谱依次相连,色谱的流动相A为体积比0.1%甲酸水溶液,流动相B为体积比含95%甲醇的0.1%甲酸水溶液,色谱控制流动相梯度为:10分钟内流动相B的比例从0%增加至100%。用质谱检测梯度洗脱的流出物,喷雾电压2300V,扫描范围为300-350m/z,AGC Target为4E5,RF lens为60%。
poly(GMA-co-EGMDA)@PDA微球毛细管填充柱富集4种黄曲霉毒素的一级质谱图如图2所示。
Claims (8)
1.一种富集黄曲霉毒素的捕获柱填料的制备方法,其特征在于,用聚多巴胺包覆甲基丙烯酸缩水甘油酯-乙二醇二甲基丙烯酸酯微球,所述用聚多巴胺包覆甲基丙烯酸缩水甘油酯-乙二醇二甲基丙烯酸酯微球,具体步骤如下:
S1. 取0.6 mL邻苯二甲酸二丁酯加入到10 mL 0.375 wt%的十二烷基硫酸钠溶液中,超声处理1小时得到乳化液;
S2. 分别将0.125 g聚苯乙烯单分散微球、0.6 mL甲苯超声加入S1的乳化液中,搅拌24小时,转速600 rpm;
S3. 取0.3 mL甲基丙烯酸缩水甘油酯、1.708 mL乙二醇二甲基丙烯酸酯、0.06 g过氧化二苯甲酰,加入到10 mL 0.25 wt%的十二烷基硫酸钠水溶液中,在氮气保护下搅拌1小时混匀、转速600 rpm,加入S2制备的混合液,继续搅拌24小时,转速600 rpm;
S4. 加入3.5 mL 10 wt%的聚乙烯醇溶液至S3制备的混合液中,在氮气保护下进行加热反应,温度70℃,转速120 rpm,冷凝回流;
S5. 将S4反应生成的材料用100 mL甲醇洗涤3次,加入100 mL 四氢呋喃在80℃下加热冷凝回流,转速120 rpm,用100 mL甲醇洗涤3次,真空60℃干燥12小时;
S6. 称取100 mg步骤S5所得材料,与100 mg盐酸多巴胺,加入到20 mL 10mM pH8.5Tris-Cl缓冲液,于暗处600 rpm搅拌12小时,随后用超纯水洗涤,真空60℃干燥12小时。
2.根据权利要求1所述的制备方法,其特征在于,所述的0.125 g聚苯乙烯单分散微球为2 μm粒径,已分散于5 mL水中。
3.权利要求1-2任一项所述的制备方法制备得到的富集黄曲霉毒素的捕获柱填料。
4.权利要求3所述的捕获柱填料在制备富集黄曲霉毒素的捕获柱中的应用。
5.一种富集黄曲霉毒素的捕获柱的制备方法,其特征在于,包括如下步骤:将钾水玻璃和甲酰胺混匀得到反应液;将毛细管插入反应液,吸取液柱后取出固化;将权利要求3所述的捕获柱填料填充到毛细管中。
6.根据权利要求5所述的制备方法,其特征在于,所述将权利要求3所述的捕获柱填料填充到毛细管中具体为:将捕获柱填料悬浮于甲醇中,利用压力注射池填充到毛细管中,50psi压力,填充长度2 cm。
7.根据权利要求5所述的制备方法,其特征在于,所述钾水玻璃的模数为3.3,波美度为40;所述毛细管为弹性石英毛细管,内径为100微米,外径为360微米,长度为15厘米;所述固化为90℃烘箱中静置12小时固化。
8.权利要求5-7任一所述的制备方法制备得到的富集黄曲霉毒素的捕获柱。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311704061.1A CN117531492B (zh) | 2023-12-13 | 2023-12-13 | 一种富集黄曲霉毒素的新型捕获柱及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311704061.1A CN117531492B (zh) | 2023-12-13 | 2023-12-13 | 一种富集黄曲霉毒素的新型捕获柱及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN117531492A CN117531492A (zh) | 2024-02-09 |
CN117531492B true CN117531492B (zh) | 2024-05-28 |
Family
ID=89795861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311704061.1A Active CN117531492B (zh) | 2023-12-13 | 2023-12-13 | 一种富集黄曲霉毒素的新型捕获柱及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117531492B (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104415740A (zh) * | 2013-09-04 | 2015-03-18 | 北京蛋白质组研究中心 | 亲水色谱填料及其制备方法与应用 |
CN108051520A (zh) * | 2017-12-15 | 2018-05-18 | 云南健牛生物科技有限公司 | 一种检测茶叶中黄曲霉毒素b1的方法 |
CN108620048A (zh) * | 2018-05-25 | 2018-10-09 | 天津大学 | 聚乙烯亚胺修饰的磁性微球制备方法及应用 |
CN112924574A (zh) * | 2021-01-25 | 2021-06-08 | 江南大学 | 一种基于PDA@Fe3O4-MWCNTs检测食用植物油中多种真菌毒素的方法 |
CN113607868A (zh) * | 2021-06-15 | 2021-11-05 | 广东省农业科学院农业生物基因研究中心 | 一种用于磷酸化蛋白质组学的在线自动化分析装置和分析方法 |
CN115015419A (zh) * | 2022-06-01 | 2022-09-06 | 杭州电子科技大学 | 聚多巴胺修饰离心微柱在有机磷痕量检测中的应用 |
CN116492289A (zh) * | 2023-03-20 | 2023-07-28 | 淮阴师范学院 | 一种叶酸接枝的聚多巴胺@温敏性聚合物核-壳微凝胶、制备方法及其在制备体外药物控释药物中的应用 |
-
2023
- 2023-12-13 CN CN202311704061.1A patent/CN117531492B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104415740A (zh) * | 2013-09-04 | 2015-03-18 | 北京蛋白质组研究中心 | 亲水色谱填料及其制备方法与应用 |
CN108051520A (zh) * | 2017-12-15 | 2018-05-18 | 云南健牛生物科技有限公司 | 一种检测茶叶中黄曲霉毒素b1的方法 |
CN108620048A (zh) * | 2018-05-25 | 2018-10-09 | 天津大学 | 聚乙烯亚胺修饰的磁性微球制备方法及应用 |
CN112924574A (zh) * | 2021-01-25 | 2021-06-08 | 江南大学 | 一种基于PDA@Fe3O4-MWCNTs检测食用植物油中多种真菌毒素的方法 |
CN113607868A (zh) * | 2021-06-15 | 2021-11-05 | 广东省农业科学院农业生物基因研究中心 | 一种用于磷酸化蛋白质组学的在线自动化分析装置和分析方法 |
CN115015419A (zh) * | 2022-06-01 | 2022-09-06 | 杭州电子科技大学 | 聚多巴胺修饰离心微柱在有机磷痕量检测中的应用 |
CN116492289A (zh) * | 2023-03-20 | 2023-07-28 | 淮阴师范学院 | 一种叶酸接枝的聚多巴胺@温敏性聚合物核-壳微凝胶、制备方法及其在制备体外药物控释药物中的应用 |
Non-Patent Citations (5)
Title |
---|
A facile and versatile strategy for synthesis of dopamine-functionalized polymers;Ruosi Wang等;J Polym Sci.;20230201;223-233 * |
Extraction of Aflatoxins from Liquid Foodstuff Samples with Polydopamine-Coated Superparamagnetic Nanoparticles for HPLC-MS/MS Analysis;Cassandra McCullum等;Agric. Food Chem.;20140428;4261-4267 * |
Mapping disulfide bonds from sub-micrograms of purified proteins or micrograms of complex protein mixtures;Shan Lu等;Biophys Rep.;20180423;68-81 * |
基于环氧- 氨基点击反应的多巴胺功能化聚 合物的制备及应用研究;孙梦晓;万方学位论文;20230829;全文 * |
微米级聚合物微球的制备及其在高效液相色谱中的应用;肖镜元;中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑;20230315(第03期);第2.4节和5.2节 * |
Also Published As
Publication number | Publication date |
---|---|
CN117531492A (zh) | 2024-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Namera et al. | Monolith as a new sample preparation material: recent devices and applications | |
Namera et al. | Advances in monolithic materials for sample preparation in drug and pharmaceutical analysis | |
Zhang et al. | Novel polymer monolith microextraction using a poly (methacrylic acid-ethylene glycol dimethacrylate) monolith and its application to simultaneous analysis of several angiotensin II receptor antagonists in human urine by capillary zone electrophoresis | |
CN101590394B (zh) | 分子印迹吸附萃取搅拌棒的制备方法及其应用 | |
Li et al. | Hybrid molecularly imprinted polymers modified by deep eutectic solvents and ionic liquids with three templates for the rapid simultaneous purification of rutin, scoparone, and quercetin from Herba Artemisiae Scopariae | |
Lei et al. | Hybrid monolithic columns with nanoparticles incorporated for capillary electrochromatography | |
CN102680557B (zh) | 一种用于固相萃取-毛细管电泳在线联用的毛细管微柱的制备方法 | |
CA2341238A1 (en) | Capillary column and method of making | |
CN1815224A (zh) | 一种毛细管液相色谱柱及其制备方法 | |
CN106868622B (zh) | 可用于检测四环素的纳米纤维及其制备和应用 | |
CN110479222B (zh) | Zr(Ⅳ)-2-氨基对苯二甲酸配合物杂化聚合物整体柱的制备方法及其在固相微萃取应用 | |
Qi et al. | Rapid identification of synthetic colorants in food samples by using indium oxide nanoparticle-functionalized porous polymer monolith coupled with HPLC-MS/MS | |
CN109400823B (zh) | 八乙烯基-poss和二甲基丙烯酸乙二醇酯共交联的硼亲和整体柱及其制备方法 | |
CN117531492B (zh) | 一种富集黄曲霉毒素的新型捕获柱及其制备方法 | |
CN110652749A (zh) | 一种复合纳米纤维在线微固相萃取柱及其制备方法 | |
Namera et al. | Monolithic silica with HPLC separation and solid phase extraction materials for determination of drugs in biological materials | |
CN112755592B (zh) | 一种共价有机骨架纳米微球功能化固相微萃取整体柱 | |
CN102872834B (zh) | 一种整体式多孔聚合物吸附萃取搅拌棒及其制备方法 | |
CN107126727A (zh) | 一种银纳米粒固定化固相微萃取整体柱 | |
CN115121234B (zh) | 离子液体内嵌烷基酯混合模式色谱固定相及制备方法和应用 | |
CN102335595A (zh) | 一种新型的具有梯度分布的整体柱固定相的制备方法 | |
CN105080515B (zh) | Mip‑spme萃取纤维及萃取平台和应用 | |
CN103520955B (zh) | 一种分子印迹整体搅拌吸附棒及其制备方法 | |
Zeng et al. | The synthesis of weak acidic type hybrid monolith via thiol‐ene click chemistry and its application in hydrophilic interaction chromatography | |
CN101721980B (zh) | 一种液相色谱柱混合填料及色谱柱 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |