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Kim Suk Hyun Ra Kongtae Kim Kyung-Tae Jeong Hyeryeong Lee Jihyun Kang Dong-Jin Rho Taekeun Kim Intae 《Ocean Science Journal》2019,54(4):673-684
Ocean Science Journal - Trace elements (Mn, Fe, Co, Ni, Cu, Zn, etc.) are essential micronutrients for marine organisms and are thus related to major issues in the ocean, such as climate change,... 相似文献
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Choi Seonghu Choi Man-Sik Joe Dongjin Park Sojung Kim Jinwoo Ra Kongtae Kim Intae Kim Kyung-Tae Lee Kyoung-Seok Lim Jean-Sun 《Ocean Science Journal》2022,57(3):436-450
Ocean Science Journal - The spatial distributions of dissolved lead (Pb) concentrations and stable Pb isotope ratios in the Ulleung Basin, East/Japan Sea, were investigated to identify the Pb... 相似文献
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In order to determine rare earth elements (REE) in coastal seawater and groundwater samples using an inductively coupled plasma
mass spectrometer, a time-efficient chelating resin column method has been widely used for small water volumes (<100 mL).
We obtained improved, quantitative (>95%) results for extracting REE from most of the seawater (including the certified reference
materials) and groundwater samples at extraction conditions of pH 5.8–6.0, flow rates <1.2 mL min−1, and 1.2 g of wet resin weight (Chelex 100, Bio-Rad, 7 mm diameter). However, we often encountered large fractionations of
HREE (heavy REE) relative to LREE (light REE) associated with chelating resin extraction for some organic-rich coastal seawater
samples. This fractionation could be due to unidentified complexation of HREE with natural organic substances in water samples.
Our results imply that many previous observations reporting the natural fractionation of HREE using this method could have
been misleading. Thus, we suggest that the quantitative (>95%) extraction of REE should be confirmed by using either one of
the HREE (i.e., Tm) as a spike or isotope dilution for natural aqueous samples which have large matrix effects. 相似文献
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