JP6693421B2 - フッ素置換テトラフェニルポルフィリン誘導体およびその利用 - Google Patents
フッ素置換テトラフェニルポルフィリン誘導体およびその利用 Download PDFInfo
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- JP6693421B2 JP6693421B2 JP2016563516A JP2016563516A JP6693421B2 JP 6693421 B2 JP6693421 B2 JP 6693421B2 JP 2016563516 A JP2016563516 A JP 2016563516A JP 2016563516 A JP2016563516 A JP 2016563516A JP 6693421 B2 JP6693421 B2 JP 6693421B2
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- lithium
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- -1 Fluorine-substituted tetraphenylporphyrin Chemical class 0.000 title description 40
- 229910052744 lithium Inorganic materials 0.000 claims description 154
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 146
- 239000000203 mixture Substances 0.000 claims description 103
- 239000003153 chemical reaction reagent Substances 0.000 claims description 99
- 238000001514 detection method Methods 0.000 claims description 89
- YNHJECZULSZAQK-UHFFFAOYSA-N tetraphenylporphyrin Chemical class C1=CC(C(=C2C=CC(N2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3N2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 YNHJECZULSZAQK-UHFFFAOYSA-N 0.000 claims description 76
- 239000003960 organic solvent Substances 0.000 claims description 35
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 24
- 230000000873 masking effect Effects 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 22
- 239000003381 stabilizer Substances 0.000 claims description 21
- 229910052731 fluorine Inorganic materials 0.000 claims description 20
- 239000012491 analyte Substances 0.000 claims description 19
- 239000011737 fluorine Substances 0.000 claims description 18
- 125000001153 fluoro group Chemical group F* 0.000 claims description 18
- 239000000523 sample Substances 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 15
- 239000012472 biological sample Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- 239000002736 nonionic surfactant Substances 0.000 claims description 7
- 239000003945 anionic surfactant Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 claims description 3
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 3
- 125000003172 aldehyde group Chemical group 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000001174 sulfone group Chemical group 0.000 claims description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 34
- 238000006243 chemical reaction Methods 0.000 description 22
- 235000019000 fluorine Nutrition 0.000 description 19
- 238000000862 absorption spectrum Methods 0.000 description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 14
- 229910001416 lithium ion Inorganic materials 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000872 buffer Substances 0.000 description 11
- 235000014113 dietary fatty acids Nutrition 0.000 description 11
- 239000000194 fatty acid Substances 0.000 description 11
- 229930195729 fatty acid Natural products 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 125000001424 substituent group Chemical group 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- 150000002641 lithium Chemical class 0.000 description 8
- 239000003002 pH adjusting agent Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 7
- 125000004429 atom Chemical group 0.000 description 7
- 125000000524 functional group Chemical group 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 150000004032 porphyrins Chemical group 0.000 description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910003002 lithium salt Inorganic materials 0.000 description 4
- 159000000002 lithium salts Chemical class 0.000 description 4
- 239000012086 standard solution Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- FSVCELGFZIQNCK-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)glycine Chemical compound OCCN(CCO)CC(O)=O FSVCELGFZIQNCK-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
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- 230000000694 effects Effects 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical class [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- QJXCFMJTJYCLFG-UHFFFAOYSA-N 2,3,4,5,6-pentafluorobenzaldehyde Chemical compound FC1=C(F)C(F)=C(C=O)C(F)=C1F QJXCFMJTJYCLFG-UHFFFAOYSA-N 0.000 description 2
- BMJOPWQYDZAFDZ-UHFFFAOYSA-N 3,4-difluoro-1h-pyrrole Chemical compound FC1=CNC=C1F BMJOPWQYDZAFDZ-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CVRXLMUYFMERMJ-UHFFFAOYSA-N N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine Chemical compound C=1C=CC=NC=1CN(CC=1N=CC=CC=1)CCN(CC=1N=CC=CC=1)CC1=CC=CC=N1 CVRXLMUYFMERMJ-UHFFFAOYSA-N 0.000 description 2
- SEQKRHFRPICQDD-UHFFFAOYSA-N N-tris(hydroxymethyl)methylglycine Chemical compound OCC(CO)(CO)[NH2+]CC([O-])=O SEQKRHFRPICQDD-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
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- 210000004369 blood Anatomy 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
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- 229940079593 drug Drugs 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 150000002221 fluorine Chemical class 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical compound OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 2
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- 231100000572 poisoning Toxicity 0.000 description 2
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- 229920002557 polyglycidol polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- SSJXIUAHEKJCMH-PHDIDXHHSA-N (1r,2r)-cyclohexane-1,2-diamine Chemical compound N[C@@H]1CCCC[C@H]1N SSJXIUAHEKJCMH-PHDIDXHHSA-N 0.000 description 1
- PIIRYSWVJSPXMW-UHFFFAOYSA-N 1-octyl-4-(4-octylphenoxy)benzene Chemical compound C1=CC(CCCCCCCC)=CC=C1OC1=CC=C(CCCCCCCC)C=C1 PIIRYSWVJSPXMW-UHFFFAOYSA-N 0.000 description 1
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- YIRYOMXPMOLQSO-UHFFFAOYSA-N 2,3,5,6-tetrafluorobenzaldehyde Chemical compound FC1=CC(F)=C(F)C(C=O)=C1F YIRYOMXPMOLQSO-UHFFFAOYSA-N 0.000 description 1
- RAEOEMDZDMCHJA-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-[2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]ethyl]amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CCN(CC(O)=O)CC(O)=O)CC(O)=O RAEOEMDZDMCHJA-UHFFFAOYSA-N 0.000 description 1
- JKMHFZQWWAIEOD-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid Chemical compound OCC[NH+]1CCN(CCS([O-])(=O)=O)CC1 JKMHFZQWWAIEOD-UHFFFAOYSA-N 0.000 description 1
- AJTVSSFTXWNIRG-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanesulfonic acid Chemical compound OCC[NH+](CCO)CCS([O-])(=O)=O AJTVSSFTXWNIRG-UHFFFAOYSA-N 0.000 description 1
- OSBLTNPMIGYQGY-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;boric acid Chemical compound OB(O)O.OCC(N)(CO)CO.OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O OSBLTNPMIGYQGY-UHFFFAOYSA-N 0.000 description 1
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 1
- KURPPWHPIYBYBS-UHFFFAOYSA-N 2-ethenylaniline Chemical group NC1=CC=CC=C1C=C KURPPWHPIYBYBS-UHFFFAOYSA-N 0.000 description 1
- LVQFQZZGTZFUNF-UHFFFAOYSA-N 2-hydroxy-3-[4-(2-hydroxy-3-sulfonatopropyl)piperazine-1,4-diium-1-yl]propane-1-sulfonate Chemical compound OS(=O)(=O)CC(O)CN1CCN(CC(O)CS(O)(=O)=O)CC1 LVQFQZZGTZFUNF-UHFFFAOYSA-N 0.000 description 1
- DVLFYONBTKHTER-UHFFFAOYSA-N 3-(N-morpholino)propanesulfonic acid Chemical compound OS(=O)(=O)CCCN1CCOCC1 DVLFYONBTKHTER-UHFFFAOYSA-N 0.000 description 1
- INEWUCPYEUEQTN-UHFFFAOYSA-N 3-(cyclohexylamino)-2-hydroxy-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(O)CNC1CCCCC1 INEWUCPYEUEQTN-UHFFFAOYSA-N 0.000 description 1
- NUFBIAUZAMHTSP-UHFFFAOYSA-N 3-(n-morpholino)-2-hydroxypropanesulfonic acid Chemical compound OS(=O)(=O)CC(O)CN1CCOCC1 NUFBIAUZAMHTSP-UHFFFAOYSA-N 0.000 description 1
- RZQXOGQSPBYUKH-UHFFFAOYSA-N 3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]azaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound OCC(CO)(CO)NCC(O)CS(O)(=O)=O RZQXOGQSPBYUKH-UHFFFAOYSA-N 0.000 description 1
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- ASVKKRLMJCWVQF-UHFFFAOYSA-N 3-buten-1-amine Chemical group NCCC=C ASVKKRLMJCWVQF-UHFFFAOYSA-N 0.000 description 1
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- 108700016232 Arg(2)-Sar(4)- dermorphin (1-4) Proteins 0.000 description 1
- FTEDXVNDVHYDQW-UHFFFAOYSA-N BAPTA Chemical compound OC(=O)CN(CC(O)=O)C1=CC=CC=C1OCCOC1=CC=CC=C1N(CC(O)=O)CC(O)=O FTEDXVNDVHYDQW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical compound N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
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- 239000008000 CHES buffer Substances 0.000 description 1
- FCKYPQBAHLOOJQ-UHFFFAOYSA-N Cyclohexane-1,2-diaminetetraacetic acid Chemical compound OC(=O)CN(CC(O)=O)C1CCCCC1N(CC(O)=O)CC(O)=O FCKYPQBAHLOOJQ-UHFFFAOYSA-N 0.000 description 1
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Description
本発明に係るテトラフェニルポルフィリン誘導体(TPP誘導体)は、テトラフェニルポルフィリンに含まれる、炭素に結合する24個の水素をフッ素に置換したものであって、次式(1)に示す構造を有する。ただし、次式(1)におけるRは、フッ素原子以外の原子または置換基を示す。
つまり、本発明に係るTPP誘導体は、テトラフェニルポルフィリン(TPP)に含まれる4個のフェニル基(ポルフィリン骨格の5,10,15および20位にそれぞれ結合するフェニル基)において、パラ位以外の水素が全てフッ素に置換されているとともに、パラ位の水素は、置換されずにそのままであるか、または、フッ素以外の原子または置換基によって置換されている構造を有している。
本発明に係るリチウム検出用試薬組成物は、前述したように、被検体中に含まれるリチウムの検出に好適に用いられる。本発明に係るリチウム検出方法は、前記構成のリチウム検出用試薬組成物を用いればよく、その具体的な方法は特に限定されないが、基本的には、前述したリチウム検出用試薬組成物を被検体に添加して混合し、混合後の被検体に可視光を照射し、照射後の被検体の色調の変化(発色反応または変色反応)を検出する構成であればよい。
各種TPP誘導体が0.05mMまたは0.15mM、安定剤であるTriton X-100(登録商標、ポリオキシエチレンオクチルフェニルエーテル)が1.0重量%、マスキング剤であるモノアミン化合物が10mM、必要に応じて添加される混合助剤(水溶性有機溶剤)が20重量%となるように、実施例または比較例のリチウム検出用試薬組成物を調製した。なお、必要に応じてpH調節剤(グッドバッファー)等を適宜添加した。
濃度1.5重量%の炭酸リチウム水溶液を調製して被検体とした。この被検体20μLに1200μLのリチウム検出用試薬組成物を添加して混合し、10分間反応した。その後、被検体を(株)日立ハイテクノロジーズ製分光光度計(商品名:U−3310)で450〜700nmの範囲で被検体の吸光スペクトルを測定した。また、ブランク検体として、精製水(リチウム濃度0%)についても同様に吸光スペクトルを測定した。
下記式(2)に示されるF24−TPP−H(前述したように、前記式(1)に示されるF24−TPPにおけるRが全て水素原子であるTPP誘導体。)を用いた。このF24−TPP−Hの濃度を0.15mMとし、混合助剤としてDMSOを含有させ、マスキング剤としてジエタノールアミンを用いて、前記の通りリチウム検出用試薬組成物を調製した。
下記式(3)に示されるF28−TPP(全ての水素原子をフッ素原子に置換した従来のTPP誘導体)を用いた。このF28−TPPの濃度を0.15mMとし、混合助剤としてDMSOを含有させ、マスキング剤としてトリエタノールアミンを用いて、前記の通りリチウム検出用試薬組成物を調製した。
DMSOを含有させない以外は、前記実施例1と同様にしてリチウム検出用試薬組成物を調製した。このリチウム検出用試薬組成物を用いて、前記の通り被検体の吸光スペクトルを測定した。その結果を図2Aに示す。
DMSOを含有させない以外は、前記比較例1と同様にしてリチウム検出用試薬組成物を調製した。このリチウム検出用試薬組成物を用いて、前記の通り被検体の吸光スペクトルを測定した。その結果を図2Bに示す。
下記式(4)に示されるF24−TPPのチオ酢酸エステル化合物(前記式(1)に示されるF24−TPPにおけるRが全てチオ酢酸エステル基であるTPP誘導体。説明の便宜上「F24−TPP−SAc」と称する。)を用いた。このF24−TPP−SAcの濃度を0.05mMとし、混合助剤としてDMSOを含有させ、マスキング剤としてトリエタノールアミンを用いて、前記の通りリチウム検出用試薬組成物を調製した。
DMSOを含有させない以外は、前記実施例3と同様にしてリチウム検出用試薬組成物を調製した。このリチウム検出用試薬組成物を用いて、前記の通り被検体の吸光スペクトルを測定した。その結果を図3Bに示す。
下記式(5)に示されるF20−TPP(4個のフェニル基全ての水素原子がフッ素原子に置換されているが、ポルフィリン骨格の水素原子が置換されていない市販(東京化成工業(株)製)のTPP誘導体)を用いた。このF20−TPPの濃度を0.15mMとし、混合助剤としてDMSOを含有させ、マスキング剤としてトリエタノールアミンを用いて、前記の通りリチウム検出用試薬組成物を調製した。
図1Aおよび図1Bの結果から明らかなように、本発明に係るF24−TPP−Hを用いたリチウム検出用試薬組成物は、従来のF28−TPPを用いたリチウム検出用試薬組成物と同様に、550nm付近で良好な吸収ピークが観察される。したがって、本発明に係るF24−TPP−Hは、F28−TPPと同程度の特性を有し、F28−TPPよりも水溶性を向上することが可能なTPP誘導体となっている。
Claims (9)
- 請求項1に記載のテトラフェニルポルフィリン誘導体を含有することを特徴とする、
リチウム検出用試薬組成物。 - 前記テトラフェニルポルフィリン誘導体の安定剤および/またはマスキング剤を含有することを特徴とする、
請求項2に記載のリチウム検出用試薬組成物。 - 前記安定剤は、非イオン性界面活性剤および/または陰イオン性界面活性剤であり、前記マスキング剤は、モノアミン化合物であることを特徴とする、
請求項3に記載のリチウム検出用試薬組成物。 - 水溶性有機溶剤を含有しないことを特徴とする、
請求項2から4のいずれか1項に記載のリチウム検出用試薬組成物。 - 請求項2から5のいずれか1項に記載のリチウム検出用試薬組成物を被検体に添加して混合し、
混合後の当該被検体に可視光を照射し、
照射後の前記被検体の色調の変化を検出することを特徴とする、
リチウム検出方法。 - 検出した前記被検体の色調の変化に基づいて、当該被検体に含まれるリチウムの含有量を検出することを特徴とする、
請求項6に記載のリチウム検出方法。 - 前記被検体は、生体試料または環境試料であることを特徴とする、
請求項6または7に記載のリチウム検出方法。 - 請求項2から5のいずれか1項に記載のリチウム検出用試薬組成物を含むことを特徴とする、
リチウム検出キット。
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