Abstract:
:The dissolution of mineral fibers has been studied in simulated physiological fluids using a dynamic testing procedure. Fibers of different chemical composition and obtained by different processes with a mean diameter of about 1 micron, have been characterized with respect to their solubility under various test conditions of flow-rate. The surfaces were analyzed using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and X-ray diffraction techniques. SEM examinations show the formation of various corrosion patterns: porous, gel-like outer layers; precipitation zones and even, in some cases, no modification of the surface aspect. EDS analyses performed on the fibers, on the fiber surface layers, or on the deposits show three types of chemical composition: areas enriched in Al, in Ca and P, or in Al, Ca, and P. These surface compositions can be found for the same type of fiber tested, depending on the flow rate of the solution. Surface changes depend strongly on the initial composition of the glass and on the test conditions, particularly the flow rate. It is of particular interest to characterize the remaining surfaces (if any) obtained at the end of the in vitro test run and to compare them with surface analysis of the recovered fibers from the in vivo tests to assess the validity of the in vitro tests.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Lehuédé P,de Meringo Adoi
10.1289/ehp.102-1567251subject
Has Abstractpub_date
1994-10-01 00:00:00pages
73-5eissn
0091-6765issn
1552-9924journal_volume
102 Suppl 5pub_type
杂志文章abstract::We analyzed questionnaire and physician examination data for 1560 new immigrants from the former USSR divided into three groups by potential exposure to Chernobyl radiation. Two groups were chosen according to soil contamination by cesium-137 at former residences, as confirmed by our findings in a 137Cs body burden st...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.95103936
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:2013-06-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2002-02-01 00:00:00
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1998-10-01 00:00:00
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pub_type: 杂志文章
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更新日期:1987-04-01 00:00:00
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更新日期:2002-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1994-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-03-01 00:00:00
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更新日期:2003-01-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.106-1533118
更新日期:1998-07-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1289/ehp.99107s6907
更新日期:1999-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7209
更新日期:2004-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7970
更新日期:2005-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:1999-11-01 00:00:00
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更新日期:2002-04-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:1983-04-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:2002-04-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.749161
更新日期:1974-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.93101s4237
更新日期:1993-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,随机对照试验
doi:10.1289/ehp.0900541
更新日期:2009-08-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2020-09-01 00:00:00
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更新日期:2016-09-01 00:00:00