Géochronologie U-Pb par ablation laser et ICP-MS (LA-ICP-MS ...

Analytica Chimica Acta 599 (2007) 177–190
Towards the development of a fossil bone geochemical standard:
An inter-laboratory study
V. Chavagnac a,∗,1 , J.A. Milton a , D.R.H. Green a , J. Breuer b , O. Bruguier c , D.E. Jacob d ,
T. Jong e , G.D. Kamenov f , J. Le Huray g ,Y.Liu h , M.R. Palmer a , S. Pourtalès c ,
I. Roduhskin i , A. Soldati d , C.N. Trueman a ,H.Yuan j
a National Oceanography Centre Southampton, University of Southampton, European Way, Southampton SO14 3ZH, UK
b University of Hohenheim, Landesanstalt für Landswirtschaftliche Chemie (710), 70593 Stuttgart, Germany
c Géosciences Montpellier, CNRS-Université de Montpellier II, Place E. Bataillon, 34090 Montpellier Cedex 5, France
d University of Mainz, Department of Geosciences, Becherweg 21, 55099 Mainz, Germany
e Environmental Analytical Geochemistry, Department of Earth Sciences, The University of Queensland, Brisbane, Qld 4072, Australia
f University of Florida, Department of Geological Sciences, 241 Williamson Hall, Gainesville, FL 32611, USA
g CANTEST LTD., 309-267 West Esplanade, North Vancouver, BC V7M 1A5, Canada
h State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
i ALS Analytica AB, Aurorum 10, 977 75 Luleå, Sweden
j Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China
Received 14 June 2007; received in revised form 6 August 2007; accepted 10 August 2007
Available online 15 August 2007
Abstract
Ten international laboratories participated in an inter-laboratory comparison of a fossil bone composite with the objective of producing a matrix
and structure-matched reference material for studies of the bio-mineralization of ancient fossil bone. We report the major and trace element
compositions of the fossil bone composite, using in-situ method as well as various wet chemical digestion techniques.
For major element concentrations, the intra-laboratory analytical precision (%RSD r ) ranges from 7 to 18%, with higher percentages for Ti and
K. The %RSD r are smaller than the inter-laboratory analytical precision (%RSD R ;