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 6 h ago

Table 3 Replicates of natural silicate samples Makishima et al. (2002)

1: Camel Donga 1 2: CD1-1 3: CD1-2 4: CD1-3

(a) ICPMS on ICPMS


@article{20200212104042-906860,
	author = "Makishima, Akio and Zhu, Xiang-Kun and Belshawl, Nick S. and O'Nions, R.Keith",
	title = "Separation of titanium from silicates for isotopic ratio determination using multiple collector ICP-MS",
	journal = "Journal of Analytical and Atomic Spectrometry",
	year = "2002",
	number = "10",
	volume = "17",
	pages = "1290-1294",
	doi = "10.1039/B204349A",
}

A box for MISIP2016 < 20160530193148-776372 >

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

Akio Makishima's Office < 20090728175525577.tkunihiro >

	CD1-2 < 20160530191556-691994 >pub classification: achondrite physical-form: chunk quantity (g): 0.0 status: (zero) modified at 2020-04-23
	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
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