scholarly journals Isotopic disequilibrium of Cu in marine ferromanganese crusts: Evidence from ab initio predictions of Cu isotope fractionation on sorption to birnessite

2020 ◽  
Vol 549 ◽  
pp. 116540 ◽  
Author(s):  
David M. Sherman ◽  
Susan H. Little
Keyword(s):  
Ab Initio ◽  
Isotope Fractionation ◽  
Ferromanganese Crusts ◽  
Isotopic Disequilibrium ◽  
Cu Isotope

Equilibrium Cu isotope fractionation in copper minerals: a first-principles study

2021 ◽  
Vol 564 ◽  
pp. 120060
Author(s):  
Shanqi Liu ◽  
Yongbing Li ◽  
Jie Liu ◽  
Zhiming Yang ◽  
Jianming Liu ◽  
...  
Keyword(s):  
First Principles ◽  
Isotope Fractionation ◽  
First Principles Study ◽  
Cu Isotope

Cu isotope fractionation response to oxidative stress in a hepatic cell line studied using multi-collector ICP-mass spectrometry

2018 ◽  
Vol 410 (9) ◽  
pp. 2385-2394 ◽  
Author(s):  
María R. Flórez ◽  
Marta Costas-Rodríguez ◽  
Charlotte Grootaert ◽  
John Van Camp ◽  
Frank Vanhaecke
Keyword(s):  
Oxidative Stress ◽  
Mass Spectrometry ◽  
Cell Line ◽  
Isotope Fractionation ◽  
Hepatic Cell ◽  
Hepatic Cell Line ◽  
Icp Mass Spectrometry ◽  
Cu Isotope

Exploration potential of Cu isotope fractionation in porphyry copper deposits

2009 ◽  
Vol 102 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Ryan Mathur ◽  
Spencer Titley ◽  
Fernando Barra ◽  
Susan Brantley ◽  
Marc Wilson ◽  
...  
Keyword(s):  
Isotope Fractionation ◽  
Porphyry Copper ◽  
Porphyry Copper Deposits ◽  
Copper Deposits ◽  
Cu Isotope

Tracing low-temperature aqueous metal migration in mineralized watersheds with Cu isotope fractionation

2014 ◽  
Vol 51 ◽  
pp. 109-115 ◽  
Author(s):  
R. Mathur ◽  
L.A. Munk ◽  
B. Townley ◽  
K.Y. Gou ◽  
N. Gómez Miguélez ◽  
...  
Keyword(s):  
Low Temperature ◽  
Isotope Fractionation ◽  
Metal Migration ◽  
Cu Isotope

Stable Cu isotope fractionation in soils during oxic weathering and podzolization

2011 ◽  
Vol 75 (11) ◽  
pp. 3119-3134 ◽  
Author(s):  
Moritz Bigalke ◽  
Stefan Weyer ◽  
Wolfgang Wilcke
Keyword(s):  
Isotope Fractionation ◽  
Cu Isotope

Cu isotope fractionation during bornite dissolution: An in situ X-ray diffraction analysis

2011 ◽  
Vol 42 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Andrew J. Wall ◽  
Ryan Mathur ◽  
Jeffrey E. Post ◽  
Peter J. Heaney
Keyword(s):  
Diffraction Analysis ◽  
Isotope Fractionation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cu Isotope

scholarly journals Nuclear field shift effect of lead in ligand exchange reaction using a crown ether

2011 ◽  
Vol 1 (1) ◽  
pp. 387-392 ◽  
Author(s):  
T. Fujii ◽  
F. Moynier ◽  
A. Agranier ◽  
E. Ponzevera ◽  
M. Abe
Keyword(s):  
Crown Ether ◽  
Ab Initio ◽  
Exchange Reaction ◽  
Ligand Exchange ◽  
Isotope Fractionation ◽  
Ligand Exchange Reaction ◽  
Nuclear Field ◽  
Field Shift ◽  
Shift Effect ◽  
Mass Dependent

AbstractLead isotopes were fractionated by the liquid-liquid extraction technique between an aqueous phase and a crown ether. After purification by ion-exchange chemistry, the 207Pb/206Pb and 208Pb/206Pb isotopic ratios were measured by multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). Isotope fractionations > 0.05‰ have been found. The conventional equilibrium mass-dependent isotope effect estimated by an ab initio calculation was smaller than the Pb isotope fractionation experimentally obtained. Conventional mass-dependent isotope fractionation is not a valuable explanation for our results. The nuclear field shift effect, which results from the isotopic change in the nuclear size and shape, was also estimated by an ab initio method combined with a finite nucleus model. The nuclear field shift effect calculated was in agreement with our experimental results. Therefore, this study reports the first nuclear field shift effect of Pb in an equilibrium ligand exchange reaction.

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