방사성폐기물학회지 (Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT))

  • 제7권1호
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  • Pages.17-23
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  • 2009
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  • 1738-1894(pISSN)
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  • 2288-5471(eISSN)
한국방사성폐기물학회 (Korean Radioactive Waste Society)
권호 표지

GC/MS를 이용한 DHOA의 방사선 분해생성물 분석

Determination of Radiolysis Produce of DHOA by GC/MS

  • 발행 : 2009.03.30
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초록

방사성 액체폐기물에 함유되어 있는 우라늄의 추출제 또는 아미드 (amide) 화합물 추출제를 사용한 용매추출계에서 제 3상 생성 방지제로 사용되는 dihexyloctanamide(DHOA)을 합성하고, 이를 $^{60}Co$ 감마 방사선으로 조사시킬 때 생성된 방사선 분해생성물 (radiolysis product)을 정량 분석하였다. 방사선 조사된 DHOA에 대한 FT-IR 스펙트럼과 방사선 분해생성물에 대한 GC/MS 스펙트럼 그리고 GC/MS-SIM 방법으로 측정한 결과를 근거로 octanoic acid와 dihexylamine 2종의 방사선 분해생성물의 존재를 확인하였으며, 이들 2종 화합물의 표준시약과 tridecane을 내부표준물질(ISTD)로 사용하여 GC/MS-SIM 방법으로 정량 분석하였다. 방사선 분해생성물에 대한 총 이온 크로마토그램에서 나타난 머무름 거동, 분리도 및 해 상도에서 정량 분석할 수 있는 결과를 얻었으며, 총 이온 크로마토그램에서 분리피크가 나타나는 시간은 octanoic acid는 8.65분, tridecane은 9.79분 그리고 dihexylamine은 10.27분이었다. 그리고 DHOA의 방사선 흡수선량이 증가할수록 octanoic acid의 농도는 감소하였으며, dihexylamine의 농도는 증가하였다.

Dihexyloctanamide(DHOA) was used as an extractant or phase modifier with the diamide extractants in a solvent extraction process for a radioactive liquid waste treatment. The degradation compounds of the DHOA extractant, irradiated with $^{60}Co$ gamma ray, were octanoic acid and dihexylamine which are identified by a Fourier transform infrared(FT-IR) and gas chromatograph/mass spectrometer(GC/MS) analysis, and determined by the GC/MS with selected ion monitoring(SIM) mode. Retention behavior of octanoic acid, tridecane (internal standard) and dihexylamine in total ion chromatogram (TIC) were 8.65 min., 9.79 min., and 10.27 min., respectively. With increasing the absorbed dose of the $\gamma$-ray irradiated DHOA, the concentration of octanoic acid was decreased and that of dihexylamine was increased.

키워드

참고문헌

  1. V.K. Manchanda, P.K. Ruikar, S. Spiram, M.S. Nagar, P.N. Pathak, K.K. Gupta, R.R.Singh, R.R. Chitnis, P.S. Dhami, and A. Ramanujam, "Distribution behavior of U(VI) , Pu(IV) , Am(III) , and Zr(IV) with N,N-dihexyloctanamide under uranium - loading conditions", Nucl. Technol., 134, pp.231-240 (2001). https://doi.org/10.13182/NT01-A3198
  2. K.K. Gupta, V.K. Manchanda, M.S. Subramanian, and R.R. Singh, "N,N-dihexyl octanamide: A promising extractant for nuclear fuel reprocessing", Sep. Sci. Technol., 35(10), pp.1603-1617(2000). https://doi.org/10.1081/SS-100100243
  3. K.K. Gupta, V.K. Manchanda, M.S. Subramanian, and R.R. Singh, "Solvent extraction studies on U(VI) , Pu(IV), and fission products using N,N-dihexyl octanamide", Solvent Extr. Ion Exch., 18(2), pp.273-292 (2000). https://doi.org/10.1080/07366290008934681
  4. E.A. Mowafy, and H.F. Aly, "Extraction of actinides and selected fission products from nitric acid medium using long chain mono amide" , Solvent Extr. Ion Exch., 19(4), pp.929-641 (2001).
  5. H. Suzuki, Y. Sasaki, Y. Sugo. A. Apichaibukol, and T. Kimura, "Extraction and separation of Am(III), and Sr(II) by N,N,N',N'-tetraoctyl-3-oxapentanediamide (TODGA)", Radiochim. Acta, 92, pp.463-466 (2004). https://doi.org/10.1524/ract.92.8.463.39276
  6. S.Tachimori, Y.Sasaki, andS.-I.Suzuki, "Modification of TODGA-n-dodecane solvent with a mono amide for high loading of lanthanides(III) and actinides(III)", Solvent Extr. Ion Exch., 20(6), pp.687-699 (2002). https://doi.org/10.1081/SEI-120016073
  7. 이일희, 김광욱, 양한범, 문제권, 정동용, 임재관, 권선길, 김원호, 조기수, 김응호, 한윤주, 권지영, 김성민, "방사화학분리기술 개발", KAERI/RR-2709/2006, 한국원자력연구원 (2007).
  8. 이일희, 임재관, 정동용, 양한범, 김광욱, "(Zr-DEHPA)/n-dodecane-HNO3 금속함유 추출계에 의한 악티나이드(III) 및 RE의 공추출 및 상호분리", 방사성폐기물학회지, 5(2), pp.123-132 (2007).
  9. 이일희, 임재관, 정동용, 양한범, 김광욱, "(TBP-TOA)/n-dodecane-HNO 추출계에 의한 Tc, Np, U의 공추출 및 순차분리 평가", 방사성폐기물학회지, 5(2), pp.133-143 (2007).
  10. P. B. Ruikar, M.S. Nagar, M.S. Subramanian, K.K. Gupta, N. Varadarajan, R.R. Singh, "Extraction behavior of uranium(VI), plutonium(IV), zirconium(IV), ruthenium(III) and europium(III) with ${\gamma}$-pre-irradiated solutions of N,N'-methylbutyl substituted amides in n-dodecane", J. Radioanal. Nucl. Chem., Letters, 201(2), pp.125-134 (1995). https://doi.org/10.1007/BF02163724
  11. P. B. Ruikar, M.S. Nagar, M.S. Subramanian, K.K. Gupta, N. Varadarajan, and R.R.Singh, "Extraction behavior of uranium(VI), plutonium(IV)and some fission products with gamma pre-irradiated n-dodecane solutions of N,N'-dihexyl substituted amides", J. Radioanal. Nucl. Chem., Articles, 196(1), pp.171-178 (1995). https://doi.org/10.1007/BF02036302
  12. G. M. Gasparini, and G. Grossi, "Long chain disubstituted aliphatic amides as extracting agents in industrial applications of solvent extraction", Sol. Extr. and Ion Exch., 4(6), 1223-1271 (1986). https://doi.org/10.1080/07366298608917920
  13. Y. Sugo, Y. Sasaki, and S. Tachimori, "Studies on hydrolysis and radiolysis of N,N,N',N'-tetraoctyl-3-oxapentane-1,5-diamide", Radiochim Acta, 90, 161-165 (2002). https://doi.org/10.1524/ract.2002.90.3_2002.161
  14. C. Cuillerdier, C. Musikas, P. Hoel, L. Nigond, and X. Vitart, "Malonamides as new extractants for nuclear waste solutions", Sep. Sci. and Tech. 26(9), pp.1229-1244 (1991). https://doi.org/10.1080/01496399108050526
  15. D.C. Wimer,"Potentiometric determination of amides in acetic anhydride", Anal. Chem., 30, pp.77-80 (1958). https://doi.org/10.1021/ac60133a022
  16. F.Delavente, J.M. Guillot, O.Thomas, L.Berthon, A.Nicol, "Thermal oxidation of two malonamides, extractants for minor actinides in nuclear fuel reprocessing", J. Anal. Applied Pyrolysis, 58-59, pp.589-603 (2001). https://doi.org/10.1016/S0165-2370(00)00157-1
  17. 김종승, 최정규, 이연옥, 윤준희, "악틴족금속의 산화가별 선택적 분리를 위한 환경 친화적 아미드 유도체 합성", KAERI/CM-1003/2006, 한국원자력연구원(2007).