scholarly journals Analysis of high-precision vanadium isotope ratios by medium resolution MC-ICP-MS

2016 ◽  
Vol 31 (2) ◽  
pp. 531-536 ◽  
Author(s):  
Sune G. Nielsen ◽  
Jeremy D. Owens ◽  
Tristan J. Horner
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Isotope Ratios ◽  
Mass Resolution ◽  
New Method ◽  
Inductively Coupled ◽  
Medium Resolution ◽  
Medium Mass ◽  
Icp Ms

We present and verify a new method to measure vanadium isotope ratios using a Thermo Scientific Neptune multi-collector inductively-coupled plasma mass spectrometer (MC-ICP-MS) operated in medium mass resolution mode.

Precise measurement of stable potassium isotope ratios using a single focusing collision cell multi-collector ICP-MS

2016 ◽  
Vol 31 (4) ◽  
pp. 1023-1029 ◽  
Author(s):  
Weiqiang Li ◽  
Brian L. Beard ◽  
Shilei Li
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Isotope Ratio ◽  
Precise Measurement ◽  
Isotope Ratios ◽  
Collision Cell ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Isotope Ratio Measurements

High precision potassium isotope ratio measurements were made using a collision-cell equipped single focusing Multi-Collector Inductively Coupled Plasma Mass Spectrometer (MC-ICP-MS).

Optimization of lithium isotope analysis in geological materials by quadrupole ICP-MS

2019 ◽  
Vol 34 (8) ◽  
pp. 1708-1717 ◽  
Author(s):  
Xiao-Ming Liu ◽  
Wenshuai Li
Keyword(s):  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Isotope Analysis ◽  
Isotope Ratios ◽  
New Method ◽  
Lithium Isotope ◽  
Geological Materials ◽  
Inductively Coupled ◽  
Hot Plasma ◽  
Icp Ms

This study develops and optimizes a new method to measure lithium isotope ratios using a single collector quadrupole inductively coupled plasma mass spectrometer (Q-ICP-MS) operated under hot plasma (1550 W) conditions.

scholarly journals A simplified isotope dilution approach for the U-Pb dating of speleogenic and other low-<sup>232</sup>Th carbonates by multi-collector ICP-MS

2021 ◽  
Author(s):  
Andrew J. Mason ◽  
Anton Vaks ◽  
Sebastian F. M. Breitenbach ◽  
John N. Hooker ◽  
Gideon M. Henderson
Keyword(s):  
Mass Spectrometry ◽  
Isotope Dilution ◽  
Inductively Coupled Plasma ◽  
New Method ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Abstract. We describe a new method for the measurement of U/Pb ratios by isotope dilution multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) for the dating of geologically young clean carbonates, particularly speleothems. The method is intended for materials containing little or no initial 232Th. We illustrate and validate the method with four examples ranging from 0.57 Ma to 20 Ma old. The new method is capable of applying the 235U-207 and 238U-234U-206Pb chronometers, common Pb and quantifiable residual 234U/238U disequilibrium permitting. These provide an alternative to the more widely used 238U-206Pb chronometer, which can be highly inaccurate for samples a few million years old, owing to uncertainties in the excess initial 234U (hence, excess radiogenic 206Pb) commonly observed in speleothems.

Direct measurement of Fe isotope compositions in iron-dominate minerals without column chromatography using MC-ICP-MS

2022 ◽  
Author(s):  
Kaiyun Chen ◽  
Zhian Bao ◽  
Honglin Yuan ◽  
Nan Lv
Keyword(s):  
Mass Spectrometry ◽  
Direct Measurement ◽  
High Precision ◽  
Column Chromatography ◽  
Inductively Coupled Plasma ◽  
Practical Method ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Isotope Determination

This study presents a practical method for high-precision Fe isotope determination without column chromatography purification for iron-dominated mineral samples using multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS). A series of comparable...

The Giant Chalukou Porphyry Mo Deposit, Northeast China: The Product of a Short-Lived, High Flux Mineralizing Event

2021 ◽  
Author(s):  
Qingqing Zhao ◽  
Degao Zhai ◽  
Ryan Mathur ◽  
Jiajun Liu ◽  
David Selby ◽  
...  
Keyword(s):  
High Precision ◽  
Inductively Coupled Plasma ◽  
Hydrothermal Activity ◽  
Ore Deposits ◽  
Ionization Mass ◽  
Inductively Coupled ◽  
Fine Grained ◽  
Porphyry Cu ◽  
Icp Ms ◽  
Porphyry Mo Deposit

Abstract Whether giant porphyry ore deposits are the products of single, short-lived magmatic-hydrothermal events or multiple events over a prolonged interval is a topic of considerable debate. Previous studies, however, have all been devoted to porphyry Cu and Cu-Mo deposits. In this paper, we report high-precision isotope dilution-negative-thermal ionization mass spectrometric (ID-N-TIMS) molybdenite Re-Os ages for the newly discovered, world-class Chalukou porphyry Mo deposit (reserves of 2.46 Mt @ 0.087 wt % Mo) in NE China. Samples were selected based on a careful evaluation of the relative timing of the different vein types (i.e., A, B, and D veins), thereby ensuring that the suite of samples analyzed could be used to reliably determine the age and duration of mineralization. The molybdenite Re-Os geochronology reveals that hydrothermal activity at Chalukou involved two magmatic-hydrothermal events spanning an interval of 6.92 ± 0.16 m.y. The first event (153.96 ± 0.08/0.63/0.79 Ma, molybdenite ID-N-TIMS Re-Os age) was associated with the emplacement of a granite porphyry dated at 152.1 ± 2.2 Ma (zircon laser ablation-inductively coupled plasma-microscopic [LA-ICP-MS] U-Pb ages), and led to only minor Mo mineralization, accounting for &lt;10% of the overall Mo budget. The bulk of the Mo (&gt;90%) was deposited in less than 650 kyr, between 147.67 ± 0.10/0.60/0.76 and 147.04 ± 0.12/0.72/0.86 Ma (molybdenite ID-N-TIMS Re-Os ages), coincident with the emplacement of a fine-grained porphyry at 148.1 ± 2.6 Ma (zircon LA-ICP-MS U-Pb ages). The high-precision Re-Os age determinations presented here show, contrary to the finding of a number of studies of porphyry Cu and Cu-Mo systems, that the giant Chalukou porphyry Mo deposit primarily formed in a single, short-lived (&lt;650 kyr) hydrothermal event, suggesting that this may also have been the case for other giant porphyry Mo deposits.

High-precision analysis of potassium isotopes by MC-ICP-MS without collision cell using cool plasma technique in low resolution mode

2021 ◽  
Author(s):  
Hai-Ou Gu ◽  
Sun He
Keyword(s):  
High Precision ◽  
Inductively Coupled Plasma ◽  
Isotope Analysis ◽  
Collision Cell ◽  
Low Resolution ◽  
Inductively Coupled ◽  
Plasma Technique ◽  
Icp Ms ◽  
Cool Plasma ◽  
Plasma Mass Spectrometry

This study presents a method for high-precision stable potassium (K) isotope analysis using Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICPMS) without collision cell in low resolution mode. Cold plasma technique...

Precise determination of Os isotope ratios in the 15–4000 pg range using a sparging method using enhanced-sensitivity multiple Faraday collector-inductively coupled plasma-mass spectrometry

2014 ◽  
Vol 29 (8) ◽  
pp. 1483-1490 ◽  
Author(s):  
Jun-Ichi Kimura ◽  
Tatsuo Nozaki ◽  
Ryoko Senda ◽  
Katsuhiko Suzuki
Keyword(s):  
Inductively Coupled Plasma ◽  
Isotope Ratios ◽  
Precise Determination ◽  
Faraday Cup ◽  
Inductively Coupled ◽  
Enhanced Sensitivity ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Os Isotope

Precise determination of Os isotope ratios in 15–4000 pg Os by sparging-Multiple Faraday Cup-ICP-MS.

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