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| Rubidium strontium isotope age of Reference Materials
Achieved results better than the design requirements. After a rigorous statistical tests measured data and calculation of reference material demonstrated the uniformity of Feng meet the requirements of the three features obtained the best estimate values and their 95 confidence woolen rug rate of the confidence limits, and proposed recommended values. They are: Rb = 249.47 ~ 104 (ppm); Sr = 158.92 ± 0.70 (ppm)} \According to the measured value of the cause, according to three characteristics, calculated by the standard instructions from feldspar samples Rb-sr model age of 808-I. -12M,, with the previous determination of the age of pegmatite lIc the same, the election also proved off valve on the instructions from the standard material feldspar value results. Upon reference material value to participate in the work of the staff analysis are: Liu Xiang, Gui-Ying Zhang, Lu Wei, Huang Chengyi, Pan Jun, Qiao G S., Guo Hong, Li Jie Yuan, Yang Jie Dong,tory burch sale, Wang silver hi, led by the Waste Management, Lynelle is, Zhou Yan , Xue Xiaofeng, Wang Wenyi, Zhou Lei Li, Zhu Naijuan, Mao Cunxiao and so on. Development work was Geology and Mineral Resources Ministry and the Chinese Academy of Geological Sciences of the support, Malaysia Qian, Chen Ping,ugg stivali, Tian Shao Zhu, Xiong Gong, Yebo Dan, Zhengyan Fang, Cai red and direction of the other comrades in the different aspects of the given pump assistance, in this well thanks. References [1] Han Yongzhi,stivali ugg, geological laboratory, 2,3 (1986), 183. [2] yellow afternoon sun, 'Probability and Statistics tough steps', Shanghai Science and Technology Literature Press,ugg milano, (1984), 154 ~ 155. [3] Zhang Z, the Chinese Academy of Geological Sciences, Institute of Geology and Mineral Resources of Yichang laid down, 4 (1981), 107 - [4] Deng Bo, 'mathematical statistical methods in the analysis of the test application', Chemical Industry Press, (1980,45 ~ 54. [5] Han Yongzhi, geology experiment declared, 2,3 (1980), 187. [6] Jin Binghui, etc. Determination, 6,4 (1987), 293. [7] BrianLister, Geojl mouth d4r5 Ⅳ ewsletter, 8,2 (1934), 171. [8] asked M.S.Recketo1, ChemicalGeo ~ 'oey, 66 (1987), 163. [9] AtsushlAadoeI mouth;. GoostandordsNewsletter, 11,2 (1987), 159.ElO ] Zhang Z, Rock and Mineral Analysis,ugg boots günstig, 7,4 (1988), 297.AnInvestigationontheMineralStandardReferenceMaterialforRb-SrDatingZbongZiCOOandWangGuihue (YiebongInstituteofGeologyandMineralResources) Abstfact - Amineralstandardreferencematerial, potassiumfeldspar, isestab-lishedfortheRh-Srdatingandthetracerubidiumandstrontiumdetermination.ThesampleiscollectedfrompegmatiteintheHuanglinggraniteofabout800Mainage.Thesampleiscarefullyselectedandcleanedheforeandduringthesamplepreparation.Thesampleissievedtolessthen200mesh.Aftersufficientlystirringtomakethesamplehomogeneous, thesampleissplitintounitswithabout10gramsinweightandstoredinglasottleswithplasticcoYers.About3XofthetotalamountofsamplebottlesareanalysedtoexaminethehomogeneityofRhandSrconcentration (turn 172 next pages) --178-- 相关的主题文章： tory burch shoes H ∞ Control Theory in SINS Initial Alignment _2123 MR-75-9D-type gas carburizing furnace temperature overshoot of _2943 tory burch sale Vertical adjusting of the optical meter a few _2030 |
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