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Development of Reference Material Using Natural Seawater for Nutrient Analysis in Seawater

자연해수를 이용한 해수 중 영양염 분석용 표준물질 개발

  • Rho, Taekeun (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Kang, Dong-Jin (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Kim, Eun-Soo (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Kahng, Sung-Hyun (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Cho, Sung Rok (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Lee, Jung Moo (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Park, Eun Ju (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology) ;
  • Moon, Cho-Rong (Ocean Observation and Information Section, Korea Institute of Ocean Science & Technology)
  • 노태근 (한국해양과학기술원 해양관측.자료실) ;
  • 강동진 (한국해양과학기술원 해양관측.자료실) ;
  • 김은수 (한국해양과학기술원 해양관측.자료실) ;
  • 강성현 (한국해양과학기술원 해양관측.자료실) ;
  • 조성록 (한국해양과학기술원 해양관측.자료실) ;
  • 이정무 (한국해양과학기술원 해양관측.자료실) ;
  • 박은주 (한국해양과학기술원 해양관측.자료실) ;
  • 문초롱 (한국해양과학기술원 해양관측.자료실)
  • Received : 2015.01.08
  • Accepted : 2015.01.14
  • Published : 2015.02.28

Abstract

Dissolved nutrients in seawater are recognized as an essential biogeochemical factor for detecting global environmental changes. The importance of nutrient reference material for seawater has been increased greatly for the comparison of nutrient data, measured in different time and space in global ocean by various researchers with different levels in nutrient analysis skill. In this study, we described the homogeneity and stability of nutrient reference material for seawater using natural seawater, collected at a station of Shihwa Lake, at a coastal station near Uljin (surface water), and at a station over the Ulleung Basin (surface water and 1500 m depth water) and sterilized. Based on the homogeneity data, the nutrient reference materials has similar homogeneity compared to other nutrient reference materials. During 3-13 month period, there was no unidirectional trend of increase or decrease in nutrient concentration of newly developed nutrient reference material for seawater. However, a sustained measurement is required to check stability for longer period.

해수 중 용존 영양염은 해양 내 물질순환을 이해하는 가장 기초적인 자료로 전 지구적 환경변화를 감지하는데 필수 생지화학 성분으로 그 중요성이 인식되고 있다. 분석능력이 다양한 연구자들에 의해서 상이한 시공간에서 측정된 용존 영양염 자료의 상호 비교를 위해 영양염 표준물질의 필요성이 증가하고 있다. 본 연구는 경기도 시화호 내측연안, 울진의 인근 연안 표층수와 동해 울릉분지 표층과 1500m에서 채취된 해수를 여과, 멸균하여 제조한 영양염 표준물질의 균질성과 안정성에 대하여 다루었다. 본 연구에서 제작된 영양염 표준물질은 해외에서 제조되는 영양염 표준물질과 유사한 균질성을 가지고 있다. 제조 후 3-13개월 동안 영양염 농도가 일정한 방향으로 감소하거나 증가하는 경향이 관측되지 않았으며 이 보다 더 긴 기간 동안의 안정성은 지속적인 모니터링이 필요하다.

Keywords

References

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Cited by

  1. International Trend Towards Comparability of Glabal Oceanic Nutrient Data: SCOR Working Group 147 (Towards Comparability of Global Oceanic Nutrient Data, COMPONUT) Activity vol.37, pp.3, 2015, https://doi.org/10.4217/OPR.2015.37.3.225