Assessment of the Tessier and BCR sequential extraction procedures for elemental partitioning of Ca, Fe, Mn, Al,and Ti and their application to surface sediments from Chinese continental shelf

查看全文 作　　者：LIU [1]Yanli;ZHANG [1,2]Jing;HE [1]Huijun

机构地区：[1]Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China;[2]Earth and Environmental System, Graduate School of Science and Engineering, University of Toyama

出　　处：《Acta Oceanologica Sinica》索引2018年第37卷第5期,共7页

基　　金：The National Natural Science Foundation of China under contract Nos 41530965,41276071 and 41003052;the JSPS KAKENHI Grants under contract Nos JP26241009 and JP15H00973;the Central Universities under contract Nos 201562008 and 201762031 摘　　要：Surface sediments can integrate a wide variety of information of seawater in marginal seas, e.g., the Quaternary sedimentary shelf such as the East China Sea(ECS) and Yellow Sea(YS). The Tessier and BCR sequential extraction procedures(SEPs) have been widely applied for extraction of various geochemical phases from sediments. To choose a suitable SEP for phase extraction of sediments from the above Quaternary sedimentary shelf, efficiency and selectivity experiments were conducted on typical individual minerals and the applicability of each SEP was assessed for natural sediments(the natural sediment standard GSD-9 and three surface sediment samples). The geochemical represented elements(Ca, Fe, Mn, Al, and Ti) were measured using both SEPs. Both SEPs have good dissolution efficiency and selectivity for the targeted geochemical phases; the optimized extractant volume for each fraction was determined. The Tessier SEP is particularly recommended for the study of adsorption-desorption process. The application of the Tessier SEP to surface sediments can furnish valuable information, including the productivity conditions(via the reducible fraction Mn) and sedimentary environments(via the carbonate fraction Ca). These results confirm that the Tessier SEP is suitable for elemental fractionation in sediments from the Chinese continental shelf. 关键词：表面沉积中国大陆 BCR 抽取 MN 元素 CA FE

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Assessment of the Tessier and BCR sequential extraction procedures for elemental partitioning of Ca, Fe, Mn, Al,and Ti and their application to surface sediments from Chinese continental shelf

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引证文献(2)

耦合文献(192)

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