Determination of Zr isotopic ratios in zircons using laser-ablation multiple-collector inductively coupled-plasma mass-spectrometry

2019 ◽  
Vol 34 (9) ◽  
pp. 1800-1809 ◽  
Author(s):  
Wen Zhang ◽  
Zaicong Wang ◽  
Frédéric Moynier ◽  
Edward Inglis ◽  
Shengyu Tian ◽  
...  

An in situ Zr isotopic analytical method for zircons was developed using LA-MC-ICP-MS to reveal the Zr stable isotope variation in the complex mineral crystallization history.

2018 ◽  
Vol 10 (21) ◽  
pp. 2456-2463 ◽  
Author(s):  
Chunlei Zong ◽  
Zhian Bao ◽  
Wangli Ran ◽  
Xue Ling ◽  
Lu Chen ◽  
...  

Herein, the potential of laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) for the determination of Pb isotopes of lead-glazed ceramics has been investigated.


2019 ◽  
Vol 34 (8) ◽  
pp. 1546-1552 ◽  
Author(s):  
Lü-Yun Zhu ◽  
Yong-Sheng Liu ◽  
Shao-Yong Jiang ◽  
Jie Lin

The 187Os/188Os ratio in low-Os sulfides could be in situ measured precisely by LA-MC-ICP-MS equipping an array of ion counters.


2009 ◽  
Vol 81 (1) ◽  
pp. 99-114 ◽  
Author(s):  
Bernhard Bühn ◽  
Márcio M. Pimentel ◽  
Massimo Matteini ◽  
Elton L. Dantas

Age determinations using the 235U and 238U radioactive decay series to the daughter isotopes 207Pb and 206Pb, respectively, using the mineral zircon (ZrSiO4), are widely used to decipher geological processes. A new method developed in the last couple of years, the laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS), overcomes previous laborious sample preparation, and yields isotopic ratios and age data with a high spatial resolution of ten of microns. The present study describes the analytical set-up and data reduction process as presently applied at the Laboratory for Geochronology of the University of Brasília. It explores the precision and accuracy of the method by cross-analysing three international zircon standards. We arrive at a precision of 1.9 to 3.7% (2σ SD) and an accuracy of 0.6 to 3.8% (2σ SD) for and U isotopic ratios of the standards. We also apply the method to two natural zircon samples, which have previously been dated by other analytical methods. A comparison of the results show a good conformity of the age data,being whitin the error limits. The data demonstrate the great analytical potential of the method for rapid, precise and accurate U-Pb isotopic analyses on the micron scale.


2019 ◽  
Vol 34 (6) ◽  
pp. 1126-1134 ◽  
Author(s):  
Xiuhong Liao ◽  
Zhaochu Hu ◽  
Tao Luo ◽  
Wen Zhang ◽  
Yongsheng Liu ◽  
...  

Water-related interferences and matrix effects in ICP-MS are dramatically reduced by using laser ablation solution sampling.


2018 ◽  
Vol 33 (2) ◽  
pp. 231-239 ◽  
Author(s):  
Yue-Heng Yang ◽  
Fu-Yuan Wu ◽  
Jin-Hui Yang ◽  
Roger H. Mitchell ◽  
Zi-Fu Zhao ◽  
...  

We report the first U–Pb geochronological investigation of schorlomite garnet from carbonatite and alkaline complexes and demonstrate its applicability for U–Pb age determination using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) due to its relatively high U and Th abundances and negligible common Pb content.


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