Makishima, Akio et al. (2002) Separation of titanium from silicates for isotopic ratio determination using multiple collector ICP-MS, Journal of Analytical and Atomic Spectrometry, 17, 1290-1294, doi: 10.1039/B204349A. < 20200212104042-906860 > pub

Map on Earth or stone. Places and analyses are shown.

  • abstract:

    A new separation method of Ti from silicate materials is presented that is suitable for the determination of
    natural Ti isotope variations using multi-collector inductively coupled plasma source mass spectrometry (MC-
    ICP-MS). This method makes possible for the first time the separation of Ti from natural materials, with high
    purity, high recovery and no introduction of artificial mass fractionation. Following sample decomposition
    using HF, Ti is separated using a three-column procedure. In the first column using an anion-exchange resin,
    AG 1X8, major elements and the majority of trace elements are separated. In the second column, after
    eliminating F- by evaporation with HClO4 and re-dissolution with H2O2–HNO3 , Ti is separated from Zr and Hf using a liquid–liquid extraction resin, U/TEVA. In the third column, which is the same as the first column, trace amounts of Al and P are further removed. Recovery yields were almost unity, and no Ti isotope
    fractionation occurred from the overall chemical processing. The reproducibilities (2s) of the Ti isotope ratio measurement for a meteorite (eucrite) and a lamproite were < 0.5ε for ε47Ti, ε48Ti and ε49Ti, and < 1ε for ε50Ti, which were comparable to those for the pure Ti standard solution.

  • doi: 10.1039/B204349A
  • modified at 15 h ago
Img 2664 thumb CD1-1 < 20160530191535-490624 >pub
  • classification: achondrite
  • physical-form: chunk
  • quantity (g): 0.0
  • status: (zero)
  • description: Original weight was 6.0 g as of 2016-05-30. As of 2016-0531, it was divided into chunk CD1-1-a, TK CD1-1-b, and TS CD1-1-c.
  • modified at 2020-04-23
Img 2665 thumb CD1-2 < 20160530191556-691994 >pub
  • classification: achondrite
  • physical-form: chunk
  • quantity (g): 0.0
  • status: (zero)
  • modified at 2020-04-23
Img 2666 thumb CD1-3 < 20160530191622-485753 >pub
  • classification: achondrite
  • physical-form: chunk
  • quantity (g): 0.0
  • status: (zero)
  • modified at 2020-04-23
/pub/specimens/562 Camel Donga 1 < 20071215165540.en >pub
  • classification: achondrite
  • physical-form: aliquot
  • quantity (g): 0.0
  • status: (zero)
  • description: Monomict Eucrite; Original weight: unknown (12.15 g in total, as of 2016-05-30); Price: unknown; Two big pieces (around 2 cm in size) and several small pieces are contained in a plastic container. As of 2016-05-30, it has been divided into three chuncks; CD1-1, CD1-2, and CD1-3.
  • modified at 2020-05-02
name box-type global-id
binder of Separation of titanium from silicates for isotopic ratio determination using multiple collector ICP-MS pub container 20200212104102-397844
name device size global-id
CD1-1_eTi pub ICPMS 4 20200212105727-503280
CD1-2_eTi pub ICPMS 4 20200212110321-955382
CD1-3_eTi pub ICPMS 4 20200212110333-657669
CD1_eTi_average pub ICPMS 4 20200212110721-399168
Camel Donga 1 pub TIMS Thermo-Fisher MAT261 10 20200219144240-943371
Camel Donga 1 pub TIMS Thermo-Fisher MAT261 4 20200219150029-073251
Camel Donga 1 pub TIMS Thermo-Fisher MAT261 3 20200219151943-715798
name spots global-id
caption ID assembly stone
Table 3 Replicates of natural silicate samples pub 20200212110917-889259 Ti is. (Max et al., 2002) 4
manual
  • name
  • Makishima, Akio
  • Zhu, Xiang-Kun
  • Belshawl, Nick S.
  • O'Nions, R.Keith