CN114487169B - 一种手性氨基酸的检测方法 - Google Patents
一种手性氨基酸的检测方法 Download PDFInfo
- Publication number
- CN114487169B CN114487169B CN202210008922.1A CN202210008922A CN114487169B CN 114487169 B CN114487169 B CN 114487169B CN 202210008922 A CN202210008922 A CN 202210008922A CN 114487169 B CN114487169 B CN 114487169B
- Authority
- CN
- China
- Prior art keywords
- amino acid
- derivatized
- sample
- derivatization
- chiral
- 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
- 150000001413 amino acids Chemical class 0.000 title claims abstract description 102
- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 37
- 238000001212 derivatisation Methods 0.000 claims abstract description 37
- XRBCRPZXSCBRTK-UHFFFAOYSA-N phosphonous acid Chemical compound OPO XRBCRPZXSCBRTK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003960 organic solvent Substances 0.000 claims abstract description 13
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 25
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- 150000002500 ions Chemical class 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000001819 mass spectrum Methods 0.000 claims description 9
- 239000002585 base Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 238000004445 quantitative analysis Methods 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical group ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- 238000004451 qualitative analysis Methods 0.000 claims description 5
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 4
- 239000005695 Ammonium acetate Substances 0.000 claims description 4
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- 235000019257 ammonium acetate Nutrition 0.000 claims description 4
- 229940043376 ammonium acetate Drugs 0.000 claims description 4
- -1 phenoxy, thienyl Chemical group 0.000 claims description 4
- HJUGFYREWKUQJT-UHFFFAOYSA-N tetrabromomethane Chemical compound BrC(Br)(Br)Br HJUGFYREWKUQJT-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical group 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- NOOLISFMXDJSKH-AEJSXWLSSA-N (+)-menthol Chemical group CC(C)[C@H]1CC[C@H](C)C[C@@H]1O NOOLISFMXDJSKH-AEJSXWLSSA-N 0.000 claims description 2
- 125000001755 (-)-menthol group Chemical group 0.000 claims description 2
- DYUQAZSOFZSPHD-SECBINFHSA-N (1r)-1-phenylpropan-1-ol Chemical group CC[C@@H](O)C1=CC=CC=C1 DYUQAZSOFZSPHD-SECBINFHSA-N 0.000 claims description 2
- DYUQAZSOFZSPHD-VIFPVBQESA-N (1s)-1-phenylpropan-1-ol Chemical group CC[C@H](O)C1=CC=CC=C1 DYUQAZSOFZSPHD-VIFPVBQESA-N 0.000 claims description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 2
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 2
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 125000002541 furyl group Chemical group 0.000 claims description 2
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 claims description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 2
- CRWJEUDFKNYSBX-UHFFFAOYSA-N sodium;hypobromite Chemical compound [Na+].Br[O-] CRWJEUDFKNYSBX-UHFFFAOYSA-N 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- RKBCYCFRFCNLTO-UHFFFAOYSA-N triisopropylamine Chemical compound CC(C)N(C(C)C)C(C)C RKBCYCFRFCNLTO-UHFFFAOYSA-N 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 5
- ONIBWKKTOPOVIA-UHFFFAOYSA-N Proline Natural products OC(=O)C1CCCN1 ONIBWKKTOPOVIA-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002378 acidificating effect Effects 0.000 abstract description 4
- 150000003335 secondary amines Chemical class 0.000 abstract description 3
- 229940024606 amino acid Drugs 0.000 description 74
- 235000001014 amino acid Nutrition 0.000 description 74
- MTCFGRXMJLQNBG-REOHCLBHSA-N (2S)-2-Amino-3-hydroxypropansäure Chemical compound OC[C@H](N)C(O)=O MTCFGRXMJLQNBG-REOHCLBHSA-N 0.000 description 22
- ROHFNLRQFUQHCH-YFKPBYRVSA-N L-leucine Chemical compound CC(C)C[C@H](N)C(O)=O ROHFNLRQFUQHCH-YFKPBYRVSA-N 0.000 description 18
- CKLJMWTZIZZHCS-UWTATZPHSA-N D-aspartic acid Chemical compound OC(=O)[C@H](N)CC(O)=O CKLJMWTZIZZHCS-UWTATZPHSA-N 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 17
- 238000004458 analytical method Methods 0.000 description 16
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 13
- 229960003136 leucine Drugs 0.000 description 13
- 229960001153 serine Drugs 0.000 description 13
- KZSNJWFQEVHDMF-BYPYZUCNSA-N L-valine Chemical compound CC(C)[C@H](N)C(O)=O KZSNJWFQEVHDMF-BYPYZUCNSA-N 0.000 description 12
- 238000005481 NMR spectroscopy Methods 0.000 description 11
- 239000004473 Threonine Substances 0.000 description 9
- 238000002372 labelling Methods 0.000 description 9
- 229960002898 threonine Drugs 0.000 description 9
- 229960004295 valine Drugs 0.000 description 9
- ROHFNLRQFUQHCH-UHFFFAOYSA-N Leucine Natural products CC(C)CC(N)C(O)=O ROHFNLRQFUQHCH-UHFFFAOYSA-N 0.000 description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- AGPKZVBTJJNPAG-WHFBIAKZSA-N L-isoleucine Chemical compound CC[C@H](C)[C@H](N)C(O)=O AGPKZVBTJJNPAG-WHFBIAKZSA-N 0.000 description 6
- KZSNJWFQEVHDMF-UHFFFAOYSA-N Valine Natural products CC(C)C(N)C(O)=O KZSNJWFQEVHDMF-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical class [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 239000004474 valine Substances 0.000 description 6
- ONIBWKKTOPOVIA-BYPYZUCNSA-N L-Proline Chemical compound OC(=O)[C@@H]1CCCN1 ONIBWKKTOPOVIA-BYPYZUCNSA-N 0.000 description 5
- 239000004395 L-leucine Substances 0.000 description 5
- 235000019454 L-leucine Nutrition 0.000 description 5
- AYFVYJQAPQTCCC-UHFFFAOYSA-N Threonine Natural products CC(O)C(N)C(O)=O AYFVYJQAPQTCCC-UHFFFAOYSA-N 0.000 description 5
- 229960005261 aspartic acid Drugs 0.000 description 5
- 239000012295 chemical reaction liquid Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 229960000310 isoleucine Drugs 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 5
- 229960002429 proline Drugs 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 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 4
- CKLJMWTZIZZHCS-UHFFFAOYSA-N D-OH-Asp Natural products OC(=O)C(N)CC(O)=O CKLJMWTZIZZHCS-UHFFFAOYSA-N 0.000 description 4
- ONIBWKKTOPOVIA-SCSAIBSYSA-N D-Proline Chemical compound OC(=O)[C@H]1CCCN1 ONIBWKKTOPOVIA-SCSAIBSYSA-N 0.000 description 4
- ROHFNLRQFUQHCH-RXMQYKEDSA-N D-leucine Chemical compound CC(C)C[C@@H](N)C(O)=O ROHFNLRQFUQHCH-RXMQYKEDSA-N 0.000 description 4
- 229930182819 D-leucine Natural products 0.000 description 4
- 229930182820 D-proline Natural products 0.000 description 4
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 4
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000019253 formic acid Nutrition 0.000 description 4
- 230000002140 halogenating effect Effects 0.000 description 4
- 238000000589 high-performance liquid chromatography-mass spectrometry Methods 0.000 description 4
- AGPKZVBTJJNPAG-UHFFFAOYSA-N isoleucine Natural products CCC(C)C(N)C(O)=O AGPKZVBTJJNPAG-UHFFFAOYSA-N 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 239000004475 Arginine Substances 0.000 description 3
- 150000008574 D-amino acids Chemical class 0.000 description 3
- AYFVYJQAPQTCCC-STHAYSLISA-N D-threonine Chemical compound C[C@H](O)[C@@H](N)C(O)=O AYFVYJQAPQTCCC-STHAYSLISA-N 0.000 description 3
- 229930182822 D-threonine Natural products 0.000 description 3
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 3
- 235000009697 arginine Nutrition 0.000 description 3
- 229960003121 arginine Drugs 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000004128 high performance liquid chromatography Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229960004452 methionine Drugs 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000012086 standard solution Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- DCXYFEDJOCDNAF-UHFFFAOYSA-N Asparagine Natural products OC(=O)C(N)CC(N)=O DCXYFEDJOCDNAF-UHFFFAOYSA-N 0.000 description 2
- MTCFGRXMJLQNBG-UWTATZPHSA-N D-Serine Chemical compound OC[C@@H](N)C(O)=O MTCFGRXMJLQNBG-UWTATZPHSA-N 0.000 description 2
- 229930195711 D-Serine Natural products 0.000 description 2
- QNAYBMKLOCPYGJ-UWTATZPHSA-N D-alanine Chemical compound C[C@@H](N)C(O)=O QNAYBMKLOCPYGJ-UWTATZPHSA-N 0.000 description 2
- QNAYBMKLOCPYGJ-UHFFFAOYSA-N D-alpha-Ala Natural products CC([NH3+])C([O-])=O QNAYBMKLOCPYGJ-UHFFFAOYSA-N 0.000 description 2
- 150000008555 D-arginines Chemical class 0.000 description 2
- KZSNJWFQEVHDMF-SCSAIBSYSA-N D-valine Chemical compound CC(C)[C@@H](N)C(O)=O KZSNJWFQEVHDMF-SCSAIBSYSA-N 0.000 description 2
- 229930182831 D-valine Natural products 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- FFEARJCKVFRZRR-UHFFFAOYSA-N L-Methionine Natural products CSCCC(N)C(O)=O FFEARJCKVFRZRR-UHFFFAOYSA-N 0.000 description 2
- 150000008575 L-amino acids Chemical class 0.000 description 2
- ODKSFYDXXFIFQN-BYPYZUCNSA-N L-arginine Chemical compound OC(=O)[C@@H](N)CCCN=C(N)N ODKSFYDXXFIFQN-BYPYZUCNSA-N 0.000 description 2
- 229930064664 L-arginine Natural products 0.000 description 2
- 235000014852 L-arginine Nutrition 0.000 description 2
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 2
- DCXYFEDJOCDNAF-REOHCLBHSA-N L-asparagine Chemical compound OC(=O)[C@@H](N)CC(N)=O DCXYFEDJOCDNAF-REOHCLBHSA-N 0.000 description 2
- COLNVLDHVKWLRT-QMMMGPOBSA-N L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=CC=C1 COLNVLDHVKWLRT-QMMMGPOBSA-N 0.000 description 2
- 229930182821 L-proline Natural products 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 150000007960 acetonitrile Chemical class 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 229960001230 asparagine Drugs 0.000 description 2
- 235000009582 asparagine Nutrition 0.000 description 2
- 238000005251 capillar electrophoresis Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000002207 metabolite Substances 0.000 description 2
- 229930182817 methionine Natural products 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 229960005190 phenylalanine Drugs 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 108090000765 processed proteins & peptides Proteins 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- XHFLOLLMZOTPSM-UHFFFAOYSA-M sodium;hydrogen carbonate;hydrate Chemical compound [OH-].[Na+].OC(O)=O XHFLOLLMZOTPSM-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001946 ultra-performance liquid chromatography-mass spectrometry Methods 0.000 description 2
- NOOLISFMXDJSKH-KXUCPTDWSA-N (-)-Menthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@H]1O NOOLISFMXDJSKH-KXUCPTDWSA-N 0.000 description 1
- HNSDLXPSAYFUHK-UHFFFAOYSA-N 1,4-bis(2-ethylhexyl) sulfosuccinate Chemical compound CCCCC(CC)COC(=O)CC(S(O)(=O)=O)C(=O)OCC(CC)CCCC HNSDLXPSAYFUHK-UHFFFAOYSA-N 0.000 description 1
- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- DCXYFEDJOCDNAF-UWTATZPHSA-N D-Asparagine Chemical compound OC(=O)[C@H](N)CC(N)=O DCXYFEDJOCDNAF-UWTATZPHSA-N 0.000 description 1
- AGPKZVBTJJNPAG-RFZPGFLSSA-N D-Isoleucine Chemical compound CC[C@@H](C)[C@@H](N)C(O)=O AGPKZVBTJJNPAG-RFZPGFLSSA-N 0.000 description 1
- ODKSFYDXXFIFQN-SCSAIBSYSA-N D-arginine Chemical compound OC(=O)[C@H](N)CCCNC(N)=N ODKSFYDXXFIFQN-SCSAIBSYSA-N 0.000 description 1
- 229930028154 D-arginine Natural products 0.000 description 1
- 229930182846 D-asparagine Natural products 0.000 description 1
- 229930182845 D-isoleucine Natural products 0.000 description 1
- 150000008563 D-leucines Chemical class 0.000 description 1
- 229930182818 D-methionine Natural products 0.000 description 1
- FFEARJCKVFRZRR-SCSAIBSYSA-N D-methionine Chemical compound CSCC[C@@H](N)C(O)=O FFEARJCKVFRZRR-SCSAIBSYSA-N 0.000 description 1
- 150000008570 D-threonines Chemical class 0.000 description 1
- 150000008573 D-valines Chemical class 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 102000003839 Human Proteins Human genes 0.000 description 1
- 108090000144 Human Proteins Proteins 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- 229930182844 L-isoleucine Natural products 0.000 description 1
- 229930195722 L-methionine Natural products 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- IMDXZWRLUZPMDH-UHFFFAOYSA-N dichlorophenylphosphine Chemical compound ClP(Cl)C1=CC=CC=C1 IMDXZWRLUZPMDH-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004896 high resolution mass spectrometry Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 238000004895 liquid chromatography mass spectrometry Methods 0.000 description 1
- 238000012594 liquid chromatography nuclear magnetic resonance Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- FEMOMIGRRWSMCU-UHFFFAOYSA-N ninhydrin Chemical compound C1=CC=C2C(=O)C(O)(O)C(=O)C2=C1 FEMOMIGRRWSMCU-UHFFFAOYSA-N 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
- G01N24/087—Structure determination of a chemical compound, e.g. of a biomolecule such as a protein
-
- 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
-
- 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
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
-
- 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
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
-
- 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
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/34—Control of physical parameters of the fluid carrier of fluid composition, e.g. gradient
-
- 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
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
-
- 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
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- High Energy & Nuclear Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
本发明公开了一种手性氨基酸的检测方法,包括以下的步骤:(1)衍生:将标准的氨基酸样品与待测的氨基酸样品分别进行衍生,衍生的条件如下:在‑20℃~40℃条件下,将亚膦酸酯衍生化试剂、卤代试剂、碱、有机溶剂、水和氨基酸混合反应,反应时间为0.1~100小时,得到衍生化的氨基酸;(2)检测:将步骤(1)的标准的衍生化的氨基酸样品与待测的衍生化的氨基酸样品通过同一光学检测器检测并在同等参数条件下检测,得到的谱图进行比对和定性定量分析;优点在于操作简便,无需对衍生化后的样品进行萃取分离,可利用多种检测器进行检测氨基酸手性异构体的含量,灵敏度高,同时可以对酸性氨基酸以及对含二级胺的脯氨酸的氨基酸手性异构体进行检测。
Description
技术领域
本发明涉及氨基酸的检测技术领域,尤其是一种手性氨基酸的检测方法。
背景技术
氨基酸是构成蛋白质的基本组成单位,同时也直接参与许多生命活动。在构成人体蛋白质的20种基本氨基酸中,除了甘氨酸外都具有手性,因此这些氨基酸都存在着L型和D型两种手性同分异构体。生命体中D型氨基酸的含量水平和各种生命现象息息相关,可以反映诸如疾病的发生和进程、细菌的感染和繁殖等等。例如,血液中D-丝氨酸,D-脯氨酸和D-天冬酰胺的水平与肾功能密切相关,而D-天冬氨酸和D-脯氨酸的水平与糖尿病密切相关(Scientific Reports, 2016:26137)。现代食品以及营养学上对于氨基酸手性异构体的分析也具有很大的意义。例如,牛奶中D-丙氨酸(D-Ala)的浓度升高可以揭示微生物对牛奶的污染(Acta Universitatis Cibiniensis Series E Food Technology, 2008,12:3-18),葡萄酒和醋中的D-脯氨酸含量,则可被用于鉴定产品的发酵年份(Methods Enzymol,1984,106:98-115)。
现有成熟的氨基酸检测方法,包括茚三酮染色以及氨基酸分析仪等,都不涉及氨基酸手性异构体的测定(GB/T5009.124-2003,GB/T18246-2000)。氨基酸手性异构体的分离检测常用的方法有化学拆分法和物理拆分法。化学拆分法工艺较为常熟,多用于工业生产,但是产品的拆分率、产物光学纯度都不高,污染和能耗也较大,不适用于样品的精确检测分析。物理拆分法包括膜拆分、毛细管电泳拆分、色谱拆分等。其中膜拆分受制于膜的稳定性和使用寿命,不适用于高通量快速检测分析;毛细管电泳拆分尽管分辨率高,但是一次只能拆分一种或少数几种氨基酸的手性异构体,不适用于复杂实际样品的分析检测;色谱拆分法适用范围较广、灵敏度较高,能实现复杂样品中的氨基酸手性异构体检测分析。但是色谱拆分氨基酸手性异构体需要采用昂贵的手性色谱柱。并且由于大部分氨基酸在紫外光区没有吸收和特征荧光,因此在常用的色谱紫外检测器中的效果并不好。
为了解决以上问题,通常对待检测的含手性氨基酸样品进行(色谱)柱前衍生,以提高对手性氨基酸的检测灵敏度和色谱分离度。已报道的氨基酸手性衍生试剂可以分为羧基衍生试剂和胺基衍生试剂,这些衍生化试剂自身具有手性,在与待测的氨基酸样品通过化学反应结合后,使待测的氨基酸对映异构体引入额外的手性中心,成为非对映异构体,从而可以在非手性色谱柱中实现分离。
然而现有技术的衍生化方法需对衍生化后的样品进行萃取分离,衍生化过程繁琐,检测方法灵敏度不高且需要特定的检测器进行测试,对复杂体系中低水平含量的手性氨基酸难以进行检测,同时目前大部分衍生化标记试剂需要使用氨基酸的氨基发生醛胺缩合反应来结合标记基团,因此对酸性氨基酸(如天冬氨酸、谷氨酸)或者氨基为二级胺的氨基酸(如脯氨酸)不适用。
发明内容
本发明的目的在于提供一种手性氨基酸的检测方法,操作简便,无需对衍生化后的样品进行萃取分离,可利用多种检测器进行检测氨基酸手性异构体的含量,灵敏度高,同时对复杂体系中低水平含量的手性氨基酸能够进行检测,也可以对酸性氨基酸以及对含二级胺的脯氨酸的氨基酸手性异构体进行检测。
为了解决上述技术问题,本发明采用如下技术方案:
一种手性氨基酸的检测方法,包括以下的步骤:
(1)衍生:将标准的氨基酸样品与待测的氨基酸样品分别进行衍生化,分别得到所述的衍生化的标准的氨基酸样品与所述的衍生化的待测的氨基酸样品;所述的衍生化的条件如下:在-20℃~40℃条件下,将亚膦酸酯衍生化试剂、卤代试剂、碱、有机溶剂、水和氨基酸混合反应,反应时间为0.1~100小时,得到衍生化的氨基酸;
其中,所述的亚膦酸酯衍生化试剂的化合物结构如下所示:
其中,R1为芳基基团;R2为含有手性的烷氧取代基。
(2)检测:将所述的步骤(1)的所述的衍生化的标准的氨基酸样品与所述的衍生化的待测的氨基酸样品通过同一光学检测器并在同等参数条件下检测,得到的谱图进行比对和定性定量分析。
所述的芳基基团选自苯基、苯氧基、噻吩基或呋喃基中的一种。
所述的含有手性的烷氧取代基选自L-薄荷醇基、D-薄荷醇基、(R)-(+)-1-苯基-1-丙醇基或(S)-(-)-1-苯基-1-丙醇基中的一种。
所述的亚膦酸酯衍生化试剂:所述的卤代试剂:所述的碱:所述的氨基酸的摩尔质量比为(10-50):(100-300):(10-200):1;所述的有机溶剂的体积、所述的水的体积与所述的氨基酸的摩尔质量比为(100-400)mL:(50-200)mL:1 mmol。
所述的碱与所述的氨基酸的摩尔质量比为(10-20):1。
所述的卤代试剂为四氯化碳、四溴化碳、六氯乙烷、次氯酸钠、次氯酸或次溴酸钠。
所述的碱为三乙胺、三异丙胺、苯胺、氢氧化钠、氢氧化钾、碳酸钠或碳酸铯。
所述的有机溶剂选自乙醇、乙腈、四氢呋喃、二甲亚砜、N,N-二甲基甲酰胺或乙酸乙酯中的一种或多种。
所述的光学检测器为高效液相色谱-质谱联用仪或核磁共振波谱仪。
本发明的优点在于:
1.本发明的亚膦酸酯衍生化试剂中含有芳基基团和手性中心,对氨基酸进行衍生化反应,衍生化后的氨基酸分子可在紫外检测器中出现信号;同时亚膦酸酯衍生化试剂中还含有手性中心,为氨基酸手性异构体分子引入第二个手性中心,使一对对映异构体变为非对映异构体,从而在不需要特殊手性色谱柱的情况下,使用廉价、常用的非手性色谱柱即可进行分离分析,大大拓宽了检测方法中所采用的检测器的选择范围,且亚膦酸酯衍生化试剂的所需合成原料都为市场价格低廉的药品,合成步骤简单。
2.本发明公开的一种手性氨基酸的检测方法操作简便,无需对衍生化后的样品进行萃取分离,尤其适用于对含有氨基的手性代谢产物如氨基酸、小肽或多肽等样品进行衍生化标记,并采用液相色谱-质谱联用或核磁共振-磷谱技术进行定性定量分析。
3.本发明利用亚膦酸酯衍生化试剂对氨基酸进行衍生化反应,由于衍生化后的磷酰化氨基酸在质谱正离子模式中具有高响应的效应,可显著提高样品的质谱响应信号,有助于痕量代谢物的检测,本发明可检测氨基酸的最低浓度达到1 nM,因此可以实现对复杂体系中低水平含量的手性氨基酸的检测;同时本发明的检测方法可以标记并检测各种酸性氨基酸和脯氨酸,适用性广、标记效率高。
附图说明
图1为本发明中实施例2~实施例10的衍生化的氨基酸手性异构体的核磁共振磷谱谱图;
图2为本发明中实施例11的衍生化的D,L天冬氨酸提取离子流图;
图3为本发明中实施例11的衍生化的D,L天冬氨酸质谱图;
图4为本发明中实施例11的衍生化的D,L天冬氨酸紫外吸收图;
图5为本发明中实施例12的衍生化的D,L苏氨酸提取离子流图;
图6为本发明中实施例12的衍生化的D,L苏氨酸质谱图;
图7为本发明中实施例12的衍生化的D,L苏氨酸紫外吸收图;
图8为本发明中实施例13的衍生化的D,L亮氨酸提取离子流图;
图9为本发明中实施例13的衍生化的D,L亮氨酸质谱图;
图10为本发明中实施例13的衍生化的D,L亮氨酸紫外吸收图;
图11为本发明中实施例14的混合样品的高效液相色谱-质谱谱图(质谱总离子流模式和提取离子流模式);
图12为本发明中实施例15的衍生化的D/L-精氨酸异构体的核磁谱图;
图13为本发明中实施例15的实际检测的D/L比值与理论D/L比值的线性关系图;
图14为本发明中实施例16的衍生化的D/L-缬氨酸异构体的高效液相色谱谱图;
图15为本发明中实施例16的实际检测的D/L比值与理论D/L比值的线性关系图。
具体实施方式
为了进一步理解本发明,下面结合实施例对本发明优选实施方案进行描述,但是应当理解,这些描述只是为进一步说明本发明的特征和优点,而不是对本发明权利要求的限制。
本发明提供的一种手性氨基酸的检测方法,包括以下的步骤:(1)衍生:将标准的氨基酸样品与待测的氨基酸样品分别进行衍生化,分别得到衍生化的标准的氨基酸样品与衍生化的待测的氨基酸样品;衍生化的条件如下:在-20℃~40℃条件下,将亚膦酸酯衍生化试剂、卤代试剂、碱、有机溶剂、水和氨基酸混合反应,反应时间为0.1~100小时,得到衍生化的氨基酸;
其中,所述的亚膦酸酯衍生化试剂的化合物结构如下所示:
其中,R1为芳基基团;R2为含有手性的烷氧取代基。
(2)检测:将步骤(1)的衍生化的标准的氨基酸样品与衍生化的待测的氨基酸样品通过同一光学检测器并在同等参数条件下检测,得到的谱图进行比对和定性定量分析。
本发明中,对于衍生化的条件中亚膦酸酯衍生化试剂、卤代试剂、碱、有机溶剂、水和氨基酸的加入顺序没有特殊的限制,如在一些实施例中,可以先将氨基酸溶于水中,再加入亚膦酸酯衍生化试剂、卤代试剂、碱和有机溶剂;在另一些实施例中,也可以先将氨基酸、水和有机溶剂先混合,再加入亚膦酸酯衍生化试剂、卤代试剂和碱,只要保证氨基酸充分溶解即可。
本发明中,亚膦酸酯衍生化试剂:卤代试剂:碱:氨基酸的摩尔质量比为(10-50):(100-300):(10-200):1;有机溶剂的体积、水的体积与氨基酸的摩尔质量比为(100-400)mL:(50-200)mL:1 mmol;优选地,碱与氨基酸的摩尔质量比为(10-20):1。
本发明中,除非另有说明,否则所有商业试剂、溶剂和溶液均无需进一步纯化即可使用。
仪器型号与检测参数
超高效液相色谱-质谱联用(UPLC-MS)分析采用Thermo Scientific Dionexultimate300 UHLPC型号液相色谱仪Thermo Scientific TM Q Executive Plus TM质谱仪。核磁共振分析(NMR)采用Bruke ascend 500MHz核磁共振仪。色谱柱Agilent 5 HC-C18(2)(250*4.6 mm);质谱电喷雾温度300℃,喷雾电压3.5 kV,毛细管温度360 ℃,RF值35%,分辨率7000,分子量范围200-900。正离子模式。流速为0.30mL/min,柱温40℃,进样体积2uL。A相为乙腈,B相为10 mmol乙酸铵溶液;色谱梯度:0-5 min,5% A,5-6 min,35% A,6-60min,35-55 % A,60-66 min 85-100% A,67-77 min,5% A。
高效液相色谱(HPLC)采用安捷伦液相色谱仪1260II-DAD,色谱柱Agilent 5 HC-C18(2)(250*4.6 mm)流速为1mL/min,柱温40℃,进样体积10uL。A相为乙腈,B相为30 mmol乙酸铵溶液;色谱梯度:0-23 min,38-40% A,24-30 min,100% A。
实施例1:亚膦酸酯衍生化试剂的制备
亚膦酸酯衍生化试剂的制备按照参考文献(Advanced synthesis & catalysis.2014,356,781-794)进行合成。
步骤1.1:在500 mL的三颈瓶中,于氮气氛下,加入200 mL无水乙醚和100 mmol苯基二氯化磷,冷却至−78℃,充分搅拌下,通过恒压滴液漏斗缓慢滴加由100 mmol三乙胺、100 mmol L-薄荷醇和100 mL无水乙醚组成的混合液;滴加完成后,保持−78℃搅拌30 min,然后让其自然升至室温,并继续搅拌3 h,得到乳白色反应液。
步骤1.2:将上述乳白色反应液冷却至−78℃,充分搅拌下缓慢加入1.8 mL去离子水;滴加完成后让其自然升至室温,并继续搅拌过夜;于氮气氛围下将反应液快速过滤,减压除去有机溶剂,得到白色粗产物;粗产物溶解于正己烷和乙酸乙酯混合溶剂中,在−78℃下重结晶24小时,得到无色透明的亚膦酸酯衍生化标记试剂,核磁共振检测其光学纯度>99%。
结果表征:
1H NMR (CDCl3,500 MHz):δ 8.13,7.03 (d, JP-H =553.30Hz, 1H. ), 7.76-7.16(m, 5H),4.25-4.16 (m, 1H.), 2.16-2.08 (m, 2H), 1.98-1.91 (m, 1H), 1.67-1.57(m, 2H), 1.44-1.34 (m, 2H), 1.24-1.34 (m, 3H), 1.03-0.92 (m, 1 H), 0.90-0.87(d, J= 7.20Hz, 3H), 0.84-0.81 (d, J= 6.70Hz, 3H), 0.80-0.77 (d, J= 6.75Hz,3H).
13C NMR (CDCl3,125 MHz):132.91 (d, JP-C = 2.71Hz), 130.97 (d, JP-C =135.38Hz), 130.62(d, JP-C = 11.89Hz), 128.68 (d, JP-C = 13.93Hz), 78.98 (d, JP-C = 7.28Hz), 48.72 (d, JP-C = 6.33Hz), 43.52, 33.93, 31.65, 25.80, 22.94, 21.86,20.99, 15.76.
31P NMR (CDCl3,376 MHz):24.68.
实施例2:亚膦酸酯衍生化标记并检测D/L-丝氨酸混合样品
步骤2.1:制备溶液A:1 mmol的D丝氨酸与2 mmol的L丝氨酸混合于7.5 mM的碳酸氢钠水溶液中,其中D型浓度为5 mM,L型浓度为10 mM。
制备溶液B:取1.6 mmol的实施例1合成的亚膦酸酯和16 mmol四氯化碳混合,再以乙腈稀释至总体积为20 mL,放置于-18℃保存。
步骤2.2:在4 mL样品瓶中,加入100 uL的 D,L丝氨基酸混合的溶液A,加入3 μL三乙胺、400 μL 乙腈;放置冰浴中,冷却10分钟待用。
步骤2.3:冰浴下缓慢将47 uL的溶液B滴加入上述步骤2.2的混合溶液中,滴加完成后,0℃下反应30小时。
步骤2.4:在步骤2.3的反应液中加入60 uL氘代乙腈,经核磁共振仪检测分析。
实施例3:亚膦酸酯衍生化标记并检测D/L-蛋氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-蛋氨酸”。
实施例4:亚膦酸酯衍生化标记并检测D/L-苯丙氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-苯丙氨酸”。
实施例5:亚膦酸酯衍生化标记并检测D/L-精氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-精氨酸”。
实施例6:亚膦酸酯衍生化标记并检测D/L-天冬酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-天冬氨酸”,以及“标准亚膦酸酯标记试剂47 uL”改为“标准亚膦酸酯标记试剂94uL”。
实施例7:亚膦酸酯衍生化标记并检测D/L-亮氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-亮氨酸”。
实施例8:亚膦酸酯衍生化标记并检测D/L-脯氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-脯氨酸”。
实施例9:亚膦酸酯衍生化标记并检测D/L-苏氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-苏氨酸”。
实施例10:亚膦酸酯衍生化标记并检测D/L-缬氨酸混合样品
其余的部分同实施例二,不同之处在于:仅将步骤2.1和2.2中的“D,L-丝氨酸”,改为“D,L-缬氨酸”。
结果分析:实施例2至实施例10的实验结果分别列于图1中,如图1所示,在核磁共振磷谱中,衍生后的L型相较于D型在较低场,且各类衍生后的D,L氨基酸比例值均处在理论比值(1:2)附近。
实施例11:超高效液相色谱-质谱联用定性分析D/L-天冬氨酸异构体
其余的部分同实施例6,不同之处在于:仅将步骤3改为“反应结束后将反应液置在冰浴中,缓慢滴加1% 甲酸,后稀释配置成待测溶液,经超高效液相色谱-质谱联用仪检测衍生化的D/L-天冬氨酸。”
结果分析:实施例11的实验结果分别列于图2,3,4中,结果表明衍生后D型天冬氨酸先于L型被洗脱出来,提取离子流图积分比值D:L为1:1.90(理论比值为1:2),在高分辨质谱中其质荷比值为412.18823(理论值412.1884)。
实施例12:超高效液相色谱-质谱联用定性分析D/L-苏氨酸异构体
其余的部分同实施例9,不同之处在于:仅将步骤2.4改为“反应结束后将反应液置在冰浴中,缓慢滴加1% 甲酸,后稀释配置成待测溶液,经超高效液相色谱-质谱联用仪检测衍生化的D/L-苏氨酸。”
结果分析:实施例12的实验结果分别列于图5,6,7中,结果表明衍生后D型苏氨酸先于L型被洗脱出来,提取离子流图积分比值D:L为1:1.98(理论比值为1:2),在高分辨质谱中其质荷比值为398.20902(理论值398.2091)。
实施例13:超高效液相色谱-质谱联用定性分析D/L-亮氨酸异构体
其余的部分同实施例7,不同之处在于:仅将步骤3改为“反应结束后将反应液置在冰浴中,缓慢滴加1% 甲酸,后稀释配置成待测溶液,经超高效液相色谱-质谱联用仪检测衍生化的D/L-亮氨酸。”
结果分析:实施例13的实验结果分别列于图8,9,10中,结果表明衍生后D型亮氨酸先于L型被洗脱出来,提取离子流图积分比值D:L为1:2.95(理论比值为1:2),在高分辨质谱中其质荷比值为410.24359(理论值410.2455)。
实施例14:标记检测D/L-天冬氨酸、蛋氨酸、苯丙氨酸、精氨酸、丝氨酸、亮氨酸、异亮氨酸、天冬酰胺、苏氨酸、缬氨酸等混合样品
步骤14.1:将5 μL的D/L-天冬酸、蛋氨酸、苯丙氨酸、精氨酸、丝氨酸、异亮氨酸、天冬酰胺、苏氨酸、缬氨酸等标准溶液等体积量混合,再加入15 μL的亮氨酸(D异亮氨酸:D亮氨酸摩尔量比为1:3;L异亮氨酸:L亮氨酸摩尔量比为1:3,用于区分),加入3 μL三乙胺、400μL乙腈。放置冰浴中,冷却10分钟待用。后加入50 uL的实施例2中的溶液B,继续冰浴下反应30小时。
其中标准溶液为1 mmol的D型氨基酸与2 mmol的L氨基酸混合于7.5 mM的碳酸氢钠水溶液中,D型浓度为5 mM,L型浓度为10 mM。
步骤14.2:反应结束后将步骤14.1的反应液置在冰浴中,缓慢滴加1% 甲酸,后稀释配置成待测溶液,经高效液相色谱-质谱联用仪检测其D/L-氨基酸相对含量。
结果分析:实施例14的实验结果分别列于图11中,结果显示,充分反应结束后,所有衍生后的D型氨基酸先于L型被洗脱出来;而对于分子量相同的亮氨酸和异亮氨酸也可被分开,其中洗脱顺序为衍生后的D-异亮氨酸、D-亮氨酸、L-异亮氨酸、L -亮氨酸。
实施例15:核磁共振磷谱相对定量分析D/L-精氨酸异构体比例
步骤15.1:配置溶液C:将标准浓度为5 mM的D,L的精氨酸水溶液分别按D/L为0.5:1、1:1、1:2、1:4、1:6、1:8、1:10、1:20(总共100 uL)混合于400 uL乙腈,3 uL三乙胺中。
其中标准溶液为1 mmol的D型氨基酸与1 mmol的L型氨基酸分别溶于于7.5 mM的碳酸氢钠水溶液中,D型浓度为5 mM, L型浓度为 5 mM。
步骤15.2:在上述混合溶液中,加入31 uL亚膦酸酯试剂(为上述实施例2中溶液B),0℃下反应30小时。
步骤15.3:反应结束后向步骤15.2的反应液内加入60 uL氘代乙腈,经核磁共振仪检测分析。
结果分析:实施例15的实验结果列于图12中,结果显示,在核磁共振磷谱中,衍生后的L型相较于D型在较低场。将实际检测得到的D/L比值与理论D/L比值做线性关系图,如图13所示,得到的线性方程的R2为0.9916,满足比值为0.5-20范围内的相对定量分析。
实施例16:色谱拆分定量分析(紫外检测器)D/L-缬氨酸异构体
步骤16.1:配置溶液D:先分别配置D,L缬氨酸标准水溶液,浓度为40 mM,将D/L的缬氨酸分别按D:L为0.5:1、1:1、1:2、1:4、1:6、1:8、1:10、1:20(总共100 uL)混合于400 uL乙腈,3 uL三乙胺中。
其中标准溶液为8 mmol的D型氨基酸与8mmol的L型氨基酸分别溶于于20 mM的碳酸氢钠水溶液中,D型浓度为40 mM, L型浓度为 40 mM。
步骤16.2:在上述混合溶液中,加入100 uL亚膦酸酯试剂(为上述实施例2中溶液B),室温下反应30小时。
步骤16.3:将步骤16.2的反应液稀释至1000 mL,经高效液相色谱分析。
结果分析:实施例16的实验结果如图14所示,结果表明在液相色谱图,衍生后D型的缬氨酸先于L型被洗脱出来。将实际检测得到的D/L比值与理论D/L比值做线性关系图,如图15所示,线性方程的R2为0.9985,满足比值为0.5-20范围内的相对定量分析。
以上所述仅是本发明的优选实施例方式,应当指出,对于本领域技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (7)
1.一种手性氨基酸的检测方法,其特征在于包括以下的步骤:
(1)衍生:将标准的氨基酸样品与待测的氨基酸样品分别进行衍生化,分别得到所述的衍生化的标准的氨基酸样品与所述的衍生化的待测的氨基酸样品;所述的衍生化的条件如下:在-20℃~40℃条件下,将亚膦酸酯衍生化试剂、卤代试剂、碱、有机溶剂、水和氨基酸混合反应,反应时间为0.1~100小时,得到衍生化的氨基酸;
其中,所述的亚膦酸酯衍生化试剂的化合物结构如下所示:
其中,R1为芳基基团;R2为含有手性的烷氧取代基;所述的含有手性的烷氧取代基选自L-薄荷醇基、D-薄荷醇基、(R)-(+)-1-苯基-1-丙醇基或(S)-(-)-1-苯基-1-丙醇基中的一种;
(2)检测:将所述的步骤(1)的所述的衍生化的标准的氨基酸样品与所述的衍生化的待测的氨基酸样品通过同一检测器并在同等参数条件下检测,得到的谱图进行比对和定性定量分析;
所述的检测器为超高效液相色谱质谱联用仪或高效液相色谱仪,所述的超高效液相色谱质谱联用仪的参数为:
色谱柱为Agilent 5HC-C18(2),250*4.6mm;流速为0.30mL/min,柱温40℃,进样体积2uL;A相为乙腈,B相为10mmol乙酸铵溶液;
色谱梯度:0-5min,5%A;5-6min,35%A;6-60min,35-55%A;60-66min 85-100%A;67-77min,5%A;
质谱电喷雾温度300℃,喷雾电压3.5kV,毛细管温度360℃,RF值35%,分辨率7000,分子量范围200-900;正离子模式;
所述的高效液相色谱仪的参数为:色谱柱Agilent 5HC-C18(2),250*4.6mm;流速为1mL/min,柱温40℃,进样体积10uL;A相为乙腈,B相为30mmol乙酸铵溶液;色谱梯度:0-23min,38-40%A;24-30min,100%A。
2.根据权利要求1所述的一种手性氨基酸的检测方法,其特征在于所述的芳基基团选自苯基、苯氧基、噻吩基或呋喃基中的一种。
3.根据权利要求1所述的一种手性氨基酸的检测方法,其特征在于所述的亚膦酸酯衍生化试剂:所述的卤代试剂:所述的碱:所述的氨基酸的摩尔质量比为(10-50):(100-300):(10-200):1;所述的有机溶剂的体积、所述的水的体积与所述的氨基酸的摩尔质量比为(100-400)mL:(50-200)mL:1mmol。
4.根据权利要求1所述的一种手性氨基酸的检测方法,其特征在于所述的碱与所述的氨基酸的摩尔质量比为(10-20):1。
5.根据权利要求1所述的一种手性氨基酸的检测方法,其特征在于所述的卤代试剂为四氯化碳、四溴化碳、六氯乙烷、次氯酸钠、次氯酸或次溴酸钠。
6.根据权利要求1所述的一种手性氨基酸的检测方法,其特征在于所述的碱为三乙胺、三异丙胺、苯胺、氢氧化钠、氢氧化钾、碳酸钠或碳酸铯。
7.根据权利要求1所述的一种手性氨基酸的检测方法,其特征在于所述的有机溶剂选自乙醇、乙腈、四氢呋喃、二甲亚砜、N,N-二甲基甲酰胺或乙酸乙酯中的一种或多种。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210008922.1A CN114487169B (zh) | 2022-01-05 | 2022-01-05 | 一种手性氨基酸的检测方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210008922.1A CN114487169B (zh) | 2022-01-05 | 2022-01-05 | 一种手性氨基酸的检测方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114487169A CN114487169A (zh) | 2022-05-13 |
CN114487169B true CN114487169B (zh) | 2024-01-16 |
Family
ID=81510539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210008922.1A Active CN114487169B (zh) | 2022-01-05 | 2022-01-05 | 一种手性氨基酸的检测方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114487169B (zh) |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4877908A (en) * | 1983-08-05 | 1989-10-31 | Norsolor | Chiral phosphorus compounds, a process for their manufacture and their application to the catalysis of enantioselective synthesis reactions |
CN1093368A (zh) * | 1993-12-24 | 1994-10-12 | 清华大学 | 胺类在水体系中直接磷酰化合成n-磷酰化物的方法 |
CN1095722A (zh) * | 1993-12-31 | 1994-11-30 | 清华大学 | 胺类在水体系中直接磷酰化合成氨基磷酸盐及其混合物的方法 |
EP1676614A1 (en) * | 2004-12-30 | 2006-07-05 | DSM IP Assets B.V. | Continuous process for the enantioselective enrichment and separation of enantiomers using centrifugal separation |
JP2009091535A (ja) * | 2007-10-10 | 2009-04-30 | Plascoat Kk | 光学活性ポリマー |
CN101445516A (zh) * | 2008-12-31 | 2009-06-03 | 厦门大学 | 手性磷酰胺的合成方法 |
CN103645266A (zh) * | 2013-12-27 | 2014-03-19 | 光明乳业股份有限公司 | 乳基料中游离态手性氨基酸的检测方法 |
CN106596967A (zh) * | 2016-11-25 | 2017-04-26 | 厦门大学 | 一种稳定同位素磷酰化标记蛋白质的定量方法 |
CN106596739A (zh) * | 2015-10-14 | 2017-04-26 | 爱普香料集团股份有限公司 | 手性丁位内酯制备中的分析方法 |
CN106749402A (zh) * | 2016-11-25 | 2017-05-31 | 厦门大学 | 一种稳定同位素标记手性磷试剂及其制备方法与应用 |
CN108948077A (zh) * | 2018-08-09 | 2018-12-07 | 东华理工大学 | 一种α-磷酰化的α-氨基酸酯类化合物及其合成方法 |
CN113149881A (zh) * | 2021-03-04 | 2021-07-23 | 宁波大学 | 一种手性衍生化试剂及其制备方法和应用 |
CN113234102A (zh) * | 2021-05-18 | 2021-08-10 | 宁波大学 | 一种三配位磷衍生物及中间体及制备方法 |
-
2022
- 2022-01-05 CN CN202210008922.1A patent/CN114487169B/zh active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4877908A (en) * | 1983-08-05 | 1989-10-31 | Norsolor | Chiral phosphorus compounds, a process for their manufacture and their application to the catalysis of enantioselective synthesis reactions |
CN1093368A (zh) * | 1993-12-24 | 1994-10-12 | 清华大学 | 胺类在水体系中直接磷酰化合成n-磷酰化物的方法 |
CN1095722A (zh) * | 1993-12-31 | 1994-11-30 | 清华大学 | 胺类在水体系中直接磷酰化合成氨基磷酸盐及其混合物的方法 |
EP1676614A1 (en) * | 2004-12-30 | 2006-07-05 | DSM IP Assets B.V. | Continuous process for the enantioselective enrichment and separation of enantiomers using centrifugal separation |
JP2009091535A (ja) * | 2007-10-10 | 2009-04-30 | Plascoat Kk | 光学活性ポリマー |
CN101445516A (zh) * | 2008-12-31 | 2009-06-03 | 厦门大学 | 手性磷酰胺的合成方法 |
CN103645266A (zh) * | 2013-12-27 | 2014-03-19 | 光明乳业股份有限公司 | 乳基料中游离态手性氨基酸的检测方法 |
CN106596739A (zh) * | 2015-10-14 | 2017-04-26 | 爱普香料集团股份有限公司 | 手性丁位内酯制备中的分析方法 |
CN106596967A (zh) * | 2016-11-25 | 2017-04-26 | 厦门大学 | 一种稳定同位素磷酰化标记蛋白质的定量方法 |
CN106749402A (zh) * | 2016-11-25 | 2017-05-31 | 厦门大学 | 一种稳定同位素标记手性磷试剂及其制备方法与应用 |
CN108948077A (zh) * | 2018-08-09 | 2018-12-07 | 东华理工大学 | 一种α-磷酰化的α-氨基酸酯类化合物及其合成方法 |
CN113149881A (zh) * | 2021-03-04 | 2021-07-23 | 宁波大学 | 一种手性衍生化试剂及其制备方法和应用 |
CN113234102A (zh) * | 2021-05-18 | 2021-08-10 | 宁波大学 | 一种三配位磷衍生物及中间体及制备方法 |
Non-Patent Citations (3)
Title |
---|
Sensitive Bromine-Labeled Probe D‑BPBr for Simultaneous Identification and Quantification of Chiral Amino Acids and Amino- Containing Metabolites Profiling in Human Biofluid by HPLC/MS;Kexin Shen et al.;Anal. Chem.;全文 * |
二十种混合氨基酸的质谱鉴定直接磷酰化物的正负离子FAB―MS分析;尹应武 等;化学学报(第11期);全文 * |
简单易得试剂与磷-氢化合物交叉偶联合成有机磷化合物;杨佳 等;有机化学;全文 * |
Also Published As
Publication number | Publication date |
---|---|
CN114487169A (zh) | 2022-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Mochizuki et al. | Towards the chiral metabolomics: liquid chromatography–mass spectrometry based dl-amino acid analysis after labeling with a new chiral reagent,(S)-2, 5-dioxopyrrolidin-1-yl-1-(4, 6-dimethoxy-1, 3, 5-triazin-2-yl) pyrrolidine-2-carboxylate, and the application to saliva of healthy volunteers | |
EP1750126B1 (en) | Method and apparatus for analyzing aminofunctional compound | |
Pereira et al. | Simultaneous analysis of free amino acids and biogenic amines in honey and wine samples using in loop orthophthalaldeyde derivatization procedure | |
Zhao et al. | Simultaneous determination of monoamine and amino acid neurotransmitters in rat endbrain tissues by pre-column derivatization with high-performance liquid chromatographic fluorescence detection and mass spectrometric identification | |
US8945933B2 (en) | Liquid chromatography-mass spectrometry methods for multiplexed detection and quantitation of free amino acids | |
EP3358346B1 (en) | Enantiomer analysis method | |
Wu et al. | Kinetic method for the simultaneous chiral analysis of different amino acids in mixtures | |
CN108693294B (zh) | 基于n-乙基化法的多种氨基代谢物同步定量分析方法 | |
CN108445071B (zh) | 一种高准确度糖化血红蛋白标准物质定值方法 | |
JP2012505258A (ja) | 高純度l−カルチニンの調製方法 | |
Zheng et al. | A novel method for detecting amino acids derivatized with phenyl isothiocyanate by high-performance liquid chromatography–electrospray ionization mass spectrometry | |
Prior et al. | Enantioselective analysis of proteinogenic amino acids in cerebrospinal fluid by capillary electrophoresis–mass spectrometry | |
CN108459095A (zh) | 一种同时检测八种神经递质的检测方法 | |
CN110297044B (zh) | 一种识别氨基酸及肽类化合物绝对构型和光学纯度的方法 | |
Cui et al. | Enantiomeric purity determination of (L)-amino acids with pre-column derivatization and chiral stationary phase: development and validation of the method | |
Huang et al. | Simultaneous determination of L-arginine and its mono-and dimethylated metabolites in human plasma by high-performance liquid chromatography–mass spectrometry | |
CN114487169B (zh) | 一种手性氨基酸的检测方法 | |
Gao et al. | A novel fluorescent labeling reagent, 2-(9-acridone)-ethyl chloroformate, and its application to the analysis of free amino acids in honey samples by HPLC with fluorescence detection and identification with online ESI-MS | |
CN108794369B (zh) | 含醛基的手性胺识别探针及其制备方法和应用 | |
Toyo'oka | Development of Benzofurazan− bearing Fluorescence Labeling Reagents for Separation and Detection in High− performance Liquid Chromatography | |
Duchateau et al. | Enantioseparation of amino compounds by derivatization with o-phthalaldehyde and d-3-mercapto-2-methylpropionic acid | |
Inoue et al. | Determination of free hydroxyproline and proline in human serum by high-performance liquid chromatography using 4-(5, 6-dimethoxy-2-phthalimidinyl) phenylsulfonyl chloride as a pre-column fluorescent labelling reagent | |
CN110702819B (zh) | 一种用高效液相色谱法分离测定含多个手性中心的多肽手性异构体的方法 | |
Majhi et al. | Chromatographic separation of amino acids | |
KR101010899B1 (ko) | 발리올아민의 uv 분석방법 |
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 |