Inter-laboratory Comparison of Stable Carbon and Nitrogen Isotopic Composition Data Using Elemental Analyzer-isotope Ratio Mass Spectrometers
- Authors
- 김정현; 강수진; 봉연식; 박광규; 강태우; 박용세; 김다해; 최승현; 주영지; 최보형; 남승일; 이상모; 신경훈
- Issue Date
- Dec-2018
- Publisher
- 한국환경분석학회
- Keywords
- Inter-laboratory comparison; Stable carbon isotope (δ13C); Stable nitrogen isotope (δ15N)
- Citation
- Journal of Environmental Analysis, Health and Toxicology, v.21, no.4, pp.229 - 236
- Indexed
- KCI
- Journal Title
- Journal of Environmental Analysis, Health and Toxicology
- Volume
- 21
- Number
- 4
- Start Page
- 229
- End Page
- 236
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/7288
- ISSN
- 2672-0175
- Abstract
- In this study, inter-laboratory comparison was done using elemental analyzer-isotope ratio mass spectrometers (EA-IRMSs) to determine carbon and nitrogen contents as well as stable carbon and nitrogen isotopic compositions (δ13C and δ15N) of five environmental samples containing lake and marine sediments, higher plant leaves, and fish muscle, and one organic analytical standard (Protein (Casein) Standard OAS). Five national laboratories participated in this comparison study, and each laboratory analyzed all five samples and the analytical standard. Results showed that variations in total organic carbon (TOC) and total nitrogen (TN) contents as well as δ13CTOC and δ15NTN values among the laboratories were large compared to the analytical uncertainties. The results highlighted the inhomogeneity of the test samples and thus, the need to select suitable standard reference materials for future inter-laboratory studies. Further inter-laboratory comparison exercises could promote good measurement practices in the acquisition of stable carbon and nitrogen isotopic composition data.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING > 1. Journal Articles
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