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- E-ISSN 2288-8985
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- E-ISSN2288-8985
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Measurement of heavy metals in antarctic soil at the king sejong station: application of isotope dilution inductively coupled plasma mass spectrometry
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2008, v.21 no.5, pp.364-374
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(2008). Measurement of heavy metals in antarctic soil at the king sejong station: application of isotope dilution inductively coupled plasma mass spectrometry. Analytical Science and Technology, 21(5), 364-374.
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Abstract
2000년도에 COMNAP/SCAR에 의해 극지지역의 환경모니터링에 관한 표준기술지침서인 ‘Antarctic Environmental Monitoring Handbook’ 이 발간되었다. 이 지침서에 따라 남극세종기지주변지역 의 토양시료중의 중금속을 분석하였다. 시료분해방법은 고압산분해 방법을 사용하였고, 분석방법으로는 동위원소희석 유도결합플라스마질량분석법을 사용하여 토양중의 Pb, Cu, Zn 성분을 분석하였다. 분석방 법의 정확성을 확인하기 위해 표준시료인 NIST 2702를 분석한 결과 인증값의 99.5~100.8% 범위내에서 일치하였다. Chelex 100 이온교환수지를 사용하여 간섭이온을 제거하기 위해 매질을 분리하였다. 측정결 과 인위적오염이 예상되는 기지주변지역의 중금속의 평균농도는 각각 Pb 332.9 mg/kg, Cu 95.6 mg/kg, Zn 115.3 mg/kg로 나타났으며, 기지에서 멀리 떨어진 지역의 평균농도는 각각 Pb 28.1 mg/kg, Cu 101.8 mg/kg, Zn 115.6 mg/kg로 나타났다. Pb 농도는 기지주변지역과 멀리 떨어진 지점에서 현저한 차이를 보였다.
- keywords
- antarctic soil, environmental monitoring, King Sejong Station, ID-ICP/MS, NIST SRM 2702, heavy metals
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