کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1226999 968339 2006 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Trace elements in rock salt and their bioavailability estimated from solubility in acid
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Trace elements in rock salt and their bioavailability estimated from solubility in acid
چکیده انگلیسی

SummaryIn this study, 18 partly commercially available samples of rock salt from Austria, Germany, Pakistan, Poland, Switzerland, and Ukraine were investigated with respect to their content of trace elements using instrumental neutron activation analysis. Elements detected were Al, Ba, Br, Ca, Ce, Cl, Co, Cr, Cs, Eu, Fe, Hf, La, Mn, Na, Rb, Sb, Sc, Sm, Sr, Ta, Tb, Th, and Zn, some of them only in individual cases.An estimation of the bioavailability of these trace elements was performed by dissolving an equivalent of the sodium chloride samples in diluted hydrochloric acid (simulating stomach acid), filtering off the insoluble components, and analyzing the evaporated filtrate. It could be shown that in most cases bioactive trace elements like Fe can be found in rock salt in the form of almost insoluble compounds and are therefore not significantly bioavailable, whereas thorium, for example, was partly bioavailable in two cases. A significant contribution to the recommended daily intake of metal trace elements by using rock salt for nutrition can be excluded.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Trace Elements in Medicine and Biology - Volume 20, Issue 3, 26 September 2006, Pages 143–153
نویسندگان
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