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NTIS 바로가기자원환경지질 = Economic and environmental geology, v.46 no.6, 2013년, pp.495 - 508
정윤영 (한국지질자원연구원 지하수연구실) , 고동찬 (한국지질자원연구원 지하수연구실) , 이정훈 (이화여자대학교 과학교육과) , 고경석 (한국지질자원연구원 지하수연구실)
Recently, stable isotopes (
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핵심어 | 질문 | 논문에서 추출한 답변 |
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안정동위원소의 의의는? | 안정동위원소는 지하수나 대기의 순환, 고기후의 변 동특성 파악 등 물질의 기원과 순환 등을 연구하는데 중요한 도구로 이용되며 수리지질학, 기상학, 생태학 분야에서 많은 물리적 특성을 이해할 수 있게 해주었다. 이중 물의 산소와 수소의 동위원소 조성 측정은 기후변동, 지하수 함양특성, 지하수 유동특성이나 오염 물질의 근원 파악 등 수리지질학적 연구를 진행할 때 중요한 연구방법으로 알려져 있다 (Clark and Fritz, 1997). | |
물의 안정동위원소 조성 측정에 사용하는 방식은? | 지금까지 물의 안정동위원소 조성 측정은 동위원소비 질량분석기(Isotope Ratio Mass Spectrometry; IRMS) 를 통해 주로 이루어졌다. IRMS는 동위원소간의 질량 차이를 분석하여 상대비를 측정하는 장치로 60년 이상의 역사와 발전을 거듭하고 있으며, 국내에서는 1990년 초 기초과학지원연구원에 도입된 것을 시작으로 대학과 연구소를 중심으로 운영되어지고 있다(Lee and Lee, 1996). | |
동위원소비 질량분석기를 사용하기 위해서 필요한 조치는 무엇인가? | IRMS는 동위원소간의 질량 차이를 분석하여 상대비를 측정하는 장치로 60년 이상의 역사와 발전을 거듭하고 있으며, 국내에서는 1990년 초 기초과학지원연구원에 도입된 것을 시작으로 대학과 연구소를 중심으로 운영되어지고 있다(Lee and Lee, 1996). 일반적으로 IRMS를 이용한 물의 안정동위원소 분석은 화학적 전처리를 요구한다. 예를 들어 산소 동위원소는 중탄산 반응에 의한 H2O와 CO2간 이온 교환이 필요하며, 수소 동위원소는 우라늄, 아연, 크롬 등의 금속에 의한 환원법을 요한다(Epstein and Mayada, 1953; Bigeleisen et al. |
Barthold, F.K., Wu, J., Vache, K.B., Schneider, K., Frede, H.G. and Breuer, L. (2010) Identification of geographic runoff sources in a data sparse region: hydrological processes and the limitations of tracer-based approaches. Hydrological Processes. v.24, p.2313-2327.
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Zhao, L., Xiao, H., Zhou, J., Wang, L., Cheng, G., Zhou, M., Yin, L. and McCabe, M.F. (2011) Detailed assessment of isotope ratio infrared spectroscopy and isotope ratio mass spectrometry for the stable isotope analysis of plant and soil waters. Rapid Communications in Mass Spectrometry, v.25, p.3071-3082.
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