Separation and Isotopic Measurement of Sr in Tooth Samples Using Selective Specific Resins
HE Mao-Yong*1,LU Hai2,JIN Zhang-Dong1,WANG Jun2 1(State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi'an 710075,China) 2(National Institute of Metrology,Beijing 100013,China)
Strontium isotope of ancient human teeth provides an important scientific basis for ancient population migration,and Palaeodietary analysis.A fast and effective method for separation,preconcentration and isotopic determination of strontium with low content and rich calcium of tooth samples by Sr-Spec selective specific resin was established.The samples were completed dissolved with mixed acid of HNO3-HClO4.Sr was increasingly well retained by Sr resin for mobile phases with nitric acid concentrations of 8 mol/L,However,potential interferences,like Ca,Rb will elute within the 8 mol/L nitric acid.Once adsorped,Sr can be eluted from the column by changing the mobile phase to weak nitric acid of 0.05 mol/L.In comparison with the conventional separation procedures,the method has the advantages of fewer steps of separation,less usage of elution solutions and lower reagent blanks.The proposed method was used for the determination of 10 none carious teeth of enamel collected in southern of shaanxi.Giving values of 87Sr/86Sr were in the range of 0.710948～0.711037.
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Yin Ruochun① Zhang Juzhong① Yang Xiaoyong②(①Department of Scientific History and Archaeometry,University of Science and Technology of China,Hefei 230026; ②Key Laboratory of Crust-Mantle Materials and Environments,School of Earth and Space Sciences,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026);PRELIMINARY STUDY OF PREHISTORIC HUMAN MIGRATION BASED ON Sr ISOTOPE ANALYSIS FROM JIAHU RELICS[J];Quaternary Sciences;2008-01 |
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TANG Suo-Han,ZHU Xiang-Kun,LI Jin,WANG Jin-Hui,YAN Bin (Key Laboratory of Isotopic Geology,Ministry of Land and Resources,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037);Separation and Isotopic Measurement of Sr in Rock Samples Using Selective Specific Resins[J];Chinese Journal of Analytical Chemistry;2010-07 |
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Li Zhongxuan ① Zhu Cheng ① Zhang Guangsheng ① Ouyang Jie ① Wang Ran ②(①College of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210093;②Department of Archaeology,Wuhan University,Wuhan 430072);RELATIONSHIP BETWEEN HUMAN ACTIVITY AND ENVIRONMENT OF THE LIAOWADIAN SITE IN HUBEI PROVINCE[J];Quaternary Sciences;2008-06 |
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LI Chao-feng1,2*,LI Xian-hua1,GUO Jing-hui1,LI Xiang-hui1,LI Huai-kun3,ZHOU Hong-ying3 and LI Guo-zhan3 1.State Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;3.Tianjin Institute of Geology and Mineral Resources,Tianjin 300170,China;Single-step separation of Rb-Sr and Pb from minor rock samples and high precision determination using thermal ionization mass spectrometry[J];Geochimica;2011-05 |
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YAN Bin1,2,ZHU Xiang-kun2,TANG Suo-han2,QI Liang3(1.School of Earth Science and Resources,China University of Geosciences,Beijing 100083,China;2.Laboratory of Isotope Geology,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China;3.State Key Laboratory of Ore Deposit Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang,Guizhou 550002,China);Characteristics of Sr Isotopes and Rare Earth Elements of Cap Carbonates in Doushantuo Formation in the Three Gorges Area[J];Geoscience;2010-05 |
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