Development of a fully automated open-column chemical-separation system-COLUMNSPIDER-and its application to Sr-Nd-Pb isotope analyses of igneous rock samples

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Author(s)

    • MIYAZAKI Takashi
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology
    • CHANG Qing
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology
    • TAKAHASHI Toshiro
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology
    • HIRAHARA Yuka
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology
    • HANYU Takeshi
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology
    • KIMURA Jun-Ichi
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology
    • TATSUMI Yoshiyuki
    • Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology

Abstract

A fully automated open-column resin-bed chemical-separation system, named COLUMNSPIDER, has been developed. The system consists of a programmable micropipetting robot that dispenses chemical reagents and sample solutions into an open-column resin bed for elemental separation. After the initial set up of resin columns, chemical reagents, and beakers for the separated chemical components, all separation procedures are automated. As many as ten samples can be eluted in parallel in a single automated run. Many separation procedures, such as radiogenic isotope ratio analyses for Sr and Nd, involve the use of multiple column separations with different resin columns, chemical reagents, and beakers of various volumes. COLUMNSPIDER completes these separations using multiple runs. Programmable functions, including the positioning of the micropipetter, reagent volume, and elution time, enable flexible operation. Optimized movements for solution take-up and high-efficiency column flushing allow the system to perform as precisely as when carried out manually by a skilled operator. Procedural blanks, examined for COLUMNSPIDER separations of Sr, Nd, and Pb, are low and negligible. The measured Sr, Nd, and Pb isotope ratios for JB-2 and Nd isotope ratios for JB-3 and BCR-2 rock standards all fall within the ranges reported previously in high-accuracy analyses. COLUMNSPIDER is a versatile tool for the efficient elemental separation of igneous rock samples, a process that is both labor intensive and time consuming.

Journal

  • Journal of Mineralogical and Petrological Sciences

    Journal of Mineralogical and Petrological Sciences 107(2), 74-86, 2012-04-01

    Japan Association of Mineralogical Sciences

References:  58

Cited by:  1

Codes

  • NII Article ID (NAID)
    10030122303
  • NII NACSIS-CAT ID (NCID)
    AA11460926
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13456296
  • Data Source
    CJP  CJPref  J-STAGE 
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