期刊
ENVIRONMENTAL POLLUTION
卷 185, 期 -, 页码 52-58出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2013.10.006
关键词
Stainless steel; In vitro; Residence time; Alloy dissolution; Bioavailable; Biological monitoring; Dust exposure; Occupational hazard; Bio-elution
资金
- OSU Food Safety and Environmental Stewardship Program
Bioaccessibility in vitro tests measure the solubility of materials in surrogate biofluids. However, the lack of uniform methods and the effects of variable test parameters on material solubility limit interpretation. One aim of this study was to measure and compare bioaccessibility of selected economically important alloys and metals in surrogate physiologically based biofluids representing oral, inhalation and dermal exposures. A second aim was to experimentally test different biofluid formulations and residence times in vitro. A third aim was evaluation of dissolution behavior of alloys with in vitro lung and dermal biofluid surrogates. This study evaluated the bioaccessibility of sixteen elements in six alloys and 3 elemental/metal powders. We found that the alloys/metals, the chemical properties of the surrogate fluid, and residence time all had major impacts on metal solubility. The large variability of bioaccessibility indicates the relevancy of assessing alloys as toxicologically distinct relative to individual metals. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
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