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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.49  No.6 (2008)  >  pp.1342-1345

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Trace Analysis of Released Metallic Ions in Static Immersion Test for Characterization of Metallic Biomaterials

Tetsuya Ashino1), Naofumi Ohtsu1) and Kazuaki Wagatsuma1)
1) Institute for Materials Research, Tohoku University

For characterization of corrosion resistance of metallic biomaterials, determination of trace amounts of metallic ions released from the materials in using static immersion into simulated body fluids (SBF) were investigated. In using a H2SO4-fume pre-treatment method, sensitive, precise and accurate determination of the trace metallic elements in SBFs could be performed by ICP-OES. For accurate analysis, it was necessary to employ a matrix-matched solution for the calibration. Moreover, usage of a PFA vessel in the static immersion test was recommended for the prevention of contamination. Thus, it was possible to determine μg dm−3 (ppb) order of elements in SBFs and evaluate nano-gram order of the released metallic ions.

metallic biomaterials, static immersion test, inductively coupled plasma-optical emission spectrometry, simulated body fluid

Received: December 13, 2007
Accepted: March 11, 2008 , Published online: May 25, 2008
Copyright (c) 2008 The Japan Institute of Metals



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