期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

多接收器等离子体质谱仪测钕同位素比值的质量歧视校正初探

在线阅读 下载PDF
导出
摘要 利用国内首次引进的Nu Plasma型MC-ICPMS,对Nd同位素测试过程的质量歧视效应特征进行了研究.发现该类仪器测试过程的质量歧视效应并不完全符合指数函数,也不符合幂函数.质量歧视引起的同位素分馏随同位素对的平均质量数变化,但不严格遵从线性关系.只是在较小质量范围内呈近似线性关系.据此,用双分馏系数校正法可以获得143Nd/144Nd的校正系数,并用来校正143Nd/144Nd值.用此方法获得的JNdi-1的143Nd/144Nd值为O.512 107±O.OOO 008(2RSD),在测量误差范围内与TIMS测定值完全吻合.
作者 赵志琦 刘丛强 张伟 黄荣生
机构地区 中国科学院 中国科学院
出处 《矿物岩石地球化学通报》 CAS CSCD 2006年第z1期232-235,共4页 Bulletin of Mineralogy, Petrology and Geochemistry
基金 国家自然科学基金资助项目(40273010)
关键词 MC-ICPMS 质量歧视 校正方法 143Nd/144Nd值
分类号 P59 [天文地球—地球化学]
  • 相关文献

参考文献12

  • 1[1]Belshaw N S,Freedman P A,O'Nions R K,etal.A new variable dispersion double-focussing plasma source mass spectrometry with performance illustrated for Pb isotopes[J].Int.J.Mass Spectrom.,1998,181:51-58.
  • 2[2]Galy A,Belshaw N S,O'Nions R K.High-precision measurement of magnesium isotopes by multiple-collector inductively coupled plasma mass spectrometry[J].Int.J.Mass Spectrom.,2003,208:89-98.
  • 3[3]BelshawNS,ZhuXK,GuoY,O'NionsRK.High precision measurement of iron isotopes by plasma source mass spectrometry[J].Int.J.Mass Spectrom.,2000,197:191-195.
  • 4[4]Maréchal C,Télouk P,Albarede F.Precise analysis of copper and zinc isotopic compositions by plasma-source mass spectrometry[J].Chem.Geol.,1999,156:251-273.
  • 5[5]Zhu X K,O'Nions R K,Guo Y,Belshaw N S,et al.Determination of natural Cu-isotope variation by plasma-source mass spectrometry:Implications for use as a geochemical tracer[J].Chem.Geol.,2000,163:139-149.
  • 6[6]O'Nions R K,Hamilton P J,Evenson N M.Variations in them Nd/m Nd and 87Sr/86 Sr ratios in oceanic basalts[J].EarthPlanet.Sci.Lett.,1977,34:13-22.
  • 7[7]Vance D,Thirlwall M.An assessment of mass discriminationin MC-ICPMS using Nd isotopes[J].Chem.Geol.,2002,185:227-240.
  • 8[8]Tanaka T,Togashi S,Kamioka H,et al.JNdi-1:A neodymium isotopic reference in consistency with LaJolla neodymium[J].Chem.Geol.,2000,168:279-281.
  • 9[9]Luais B,Telouk P,Albarede F.Precise and accurate neodymium isotopic measurements by plasma-source mass spectrometry[J].Geochim.Cosmochim.Acta,1997,61:4847-4854.
  • 10[10]Palacz Z,Turner P,Meffan-Main S.Ultra-high Nd isotope ratio precision-The limit of exponential mass feactionation correction[J].J.Conf.Abs.,2000,5:991.

二级参考文献23

  • 1[1]Faure G. 1986. Principles of isotope geology. Wiley, New York, U.S.A.
  • 2[2]Faure G. 1998. Origin of igneous rocks. Springer-Verlag, Beilin, Germany.
  • 3[3]Galindo C, Tornos F, Darbyshire D P F et al. 1994. The age and origin of the barite-fluorite (Pb-Zn) veins of the Sieerra del Guadarrama (Spanish Cebtrak System, Spain):a radiogenic (Nd, Sr) and stable isotope study. Chemical Geology, 112:351～364.
  • 4[4]Jacobsen S B, Wasserburg G J. 1980. Sm-Nd isotopic evolution of chondrites. Earth Planetary Science Letter, 50:139～155.
  • 5[5]Lugmair G W, Carlson R W. 1978. The Sm-Nd history of KREEP. In: Proc. 9th Lunar Planetary Science Conference, 689～704.
  • 6[6]Peng J T, Hu R Z, Burnard P G. 2003. Samarium-neodymium isotope systematics of hydrothermal calicites from the Xikuangshan antimony deposit (Hunan, China): the potential of calcite as a geochronometer. Chemical Geology, 200:129～136.
  • 7[7]Sun S S, Higgins N C. 1996. Neodymium and strontium isotope study of the Blue Tier Batholith, NE Tasmania, and its bearing on the origin of tin bearing alkali feldspar granites. Ore Geology Reviews, 10: 339～365.
  • 8[8]Tanaka T, Togashi S, Kamioka H et al. 2000. JNdi-1: a neodymium isotopic reference in consistency with LaJolla neodymium. Chemical Geology, 168:279～281.
  • 9[9]Wasserburg G J, Jacobsen S B, DePaolo D J et al. 1981. Precise determination of Sm/Nd ratios, Sm and Nd isotopic abundances in standard solutions. Geochimical et Cosmochimcal Acta, 45: 2311～2323.
  • 10[10]Wilson S A. 1997. The collection, preparation, and testing of USGS reference material BCR-2, Columbia River, Basalt.U.S. Geological Survey Open-File Report 98.

共引文献229

矿物岩石地球化学通报
2006年 第z1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部