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동의어 포함
KURT(KAERI Underground Research Tunnel) 지하수에 존재하는 천연 유기물질과 6가 우라늄(U(VI))화학종의 상호작용을레이저 분광학 기술을 이용하여 조사하였다. 지하수 시료에 266 nm 파장의 레이저 빛을 입사시켜 자외선 및 파란색 파장 영역에서 방출되는 천연 유기물질의 발광 스펙트럼을 관측하였다. 0.034-0.788 mg·L-1 농도 범위의 우라늄이 함유된 지하수에서는 녹색 파장 영역에서 방출되는 U(VI) 화학종의 발광 스펙트럼을 측정하였다. 지하수에 함유된 U(VI) 화학종의 발광 특성(피크 파장 및 발광 수명)이 실험실에서 제조한 표준용액에 함유된 Ca2UO2(CO3)3(aq)의 발광 특성과 매우 유사하다는 것을 확인하였다. 지하수에 존재하는 U(VI) 화학종의 발광 세기는 표준용액에 함유된 같은 농도의 Ca2UO2(CO3)3(aq)의 발광세기에 비해 약하다. 표준용액의 Ca2UO2(CO3)3(aq)를 천연 유기물질이 함유된 지하수에 섞었을 때에도 Ca2UO2(CO3)3(aq)의발광 세기가 감소한다. 이러한 현상의 원인을 지하수의 천연 유기물질과 Ca-U(VI)-탄산염 화학종의 상호작용으로 인해 비발광성 U(VI) 착물이 형성되기 때문인 것으로 설명하였다.
The interaction of U(VI) (hexavalent uranium) species with natural organic matter (NOM) in KURT (KAERI Underground Research Tunnel) groundwater is investigated using a laser spectroscopic technique. The luminescence spectra of the NOM are observed in the ultraviolet and blue wavelength regions by irradiating a laser beam at 266 nm in groundwater. The luminescence spectra of U(VI) species in groundwater containing uranium concentrations of 0.034-0.788 mg-1 are measured in the green-colored wavelength region. The luminescence characteristics (peak wavelengths and lifetime) of U(VI) in the groundwater agree well with those of Ca2UO2(CO3)3(aq) in a standard solution prepared in a laboratory. The luminescence intensities of U(VI) in the groundwater are weaker than those of Ca2UO2(CO3)3(aq) in the standard solution at the same uranium concentrations. The luminescence intensities of Ca2UO2(CO3)3(aq) in the standard solution mixed with the groundwater are also weaker than those of Ca2UO2(CO3)3(aq) in the standard solution at the same uranium concentrations.
| 번호 | 참고문헌 | 국회도서관 소장유무 |
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| 1 | Significance of actinide chemistry for the long-term safety of waste disposal | 소장 |
| 2 | Recent advances in aqueous actinide chemistry and thermodynamics. ![]() |
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| 3 | G.R. Choppin and B. Allard, “Complexes of actinides with naturally occurring organic compounds”, in: Handbook on the Physics and Chemistry of the Actinides, A.J. Freeman, C. Keller, eds., vol. 3, 407-429, Elsevier Science Publishers B.V. (1985). | 미소장 |
| 4 | J.I. Kim, “Chemical behaviour of transuranic elements in natural aquatic systems”, in: Handbook on the Physics and Chemistry of the Actinides, A.J. Freeman, C. Keller, eds., vol. 4, 413-455, Elsevier Science Publishers B.V. (1986). | 미소장 |
| 5 | Effect of pH and uranium concentration on interaction of uranium(VI) and uranium(IV) with organic ligands in aqueous solutions ![]() |
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| 6 | Complexation of Metal Ions with Humic Acid: Metal Ion Charge Neutralization Model ![]() |
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| 7 | Speciation of Uranium in Gorleben Groundwaters ![]() |
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| 8 | K. Schmeide, S. Sachs, M. Bubner, T. Reich, K.H. Heise, and G. Bernhard, “Interaction of uranium(VI)with various modified and unmodified natural and synthetic humic substances studied by EXAFS and FTIR spectroscopy”, Inorg. Chim. Acta, 351, 133-140 (2003). | 미소장 |
| 9 | U(VI) mono-hydroxo humate complexation ![]() |
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| 10 | Uranium(VI) complexation by humic acid under neutral pH conditions studied by laser-induced fluorescence spectroscopy ![]() |
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| 11 | Ternary uranium(VI) carbonato humate complex studied by cryo-TRLFS ![]() |
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| 12 | An overview of the methods used in the characterisation of natural organic matter (NOM) in relation to drinking water treatment ![]() |
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| 13 | Characterization of dissolved organic matter in the Black Sea by fluorescence spectroscopy ![]() |
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| 14 | Fluorescence spectroscopy of polynuclear aromatic compounds in environmental monitoring. ![]() |
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| 15 | Characterization of DOM as a function of MW by fluorescence EEM and HPLC-SEC using UVA, DOC, and fluorescence detection ![]() |
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| 16 | A. Baker, E. Tipping, S.A. Thacker, and D. Gondar, “Relating dissolved organic matter fluorescence and functional properties”, Chemosphere, 73, 1765-1772(2008). | 미소장 |
| 17 | Measurement of dissolved organic matter fluorescence in aquatic environments: an interlaboratory comparison. ![]() |
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| 18 | Synchronized Excitation of Fluorescence Emission Spectra ![]() |
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| 19 | The Nature and Evidential Value of the Luminescence of Automobile Engine Oils and Related Materials: Part I. Synchronous Excitation of Fluorescence Emission ![]() |
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| 20 | Constant-Energy Synchronous Scan and Excitation Emission Matrix Shpol'skii Spectroscopy for Characterization of PAHs ![]() |
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| 21 | Simultaneous determination of molybdenum and tungsten by first-derivative synchronous spectrofluorimetry ![]() |
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| 22 | Determination of salicylic acid and its metabolites in urine by derivative synchronous spectrofluorimetry. ![]() |
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| 23 | Laser-Excited Synchronous Luminescence Spectroscopy ![]() |
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| 24 | Organic matter source discrimination by humic acid characterization: Synchronous scan fluorescence spectroscopy and Ferrate(VI) ![]() |
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| 25 | Fluorescence Decay of Natural Organic Matter (NOM) - Influence of Fractionation, Oxidation, and Metal Ion Complexation ![]() |
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| 26 | Spectroscopic Characterization of Fulvic Acid Fractions of a Contaminated Groundwater ![]() |
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| 27 | Uranium Speciation in Solution by Time-Resolved Laser-Induced Fluorescence ![]() |
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| 28 | Time-Resolved Laser-Induced Fluorescence as a Unique Tool for Low-Level Uranium Speciation ![]() |
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| 29 | Some aspects of actinide speciation by laser-induced spectroscopy ![]() |
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| 30 | Speciation of Uranium in Seepage Waters of a Mine Tailing Pile Studied by Time-Resolved Laser-Induced Fluorescence Spectroscopy (TRLFS) ![]() |
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| 31 | Uranyl(VI) carbonate complex formation: Validation of the Ca~2UO~2(CO~3)~3(aq.) species ![]() |
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| 32 | The influence of the temperature on the carbonate complexation of uranium(VI): a spectroscopic study ![]() |
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| 33 | Formation of ternary CaUO2(CO3)3(2-) and Ca2UO2(CO3)3(aq) complexes under neutral to weakly alkaline conditions. ![]() |
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| 34 | Time-resolved laser fluorescence spectroscopy of UO2(CO3)3(4-). ![]() |
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| 35 | Determination of uranium concentration and speciation in natural granitic groundwater using TRLFS ![]() |
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| 36 | E.C. Jung, H.R. Cho, and K.K. Park, “Study on the Chemical Speciation of Hydrolysis Compounds of U(VI) by Using Time-Resolved Laser-Induced Fluorescence Spectroscopy”, J. Kor. Rad. Waste Soc., 7, 133-141 (2009). | 미소장 |
| 37 | Determination of the formation constants of ternary complexes of uranyl and carbonate with alkaline earth metals (Mg2+, Ca2+, Sr2+, and Ba2+) using anion exchange method. ![]() |
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