کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10561454 | 969774 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Colorimetric detection of uranium(VI) on building surfaces after enrichment by solid phase extraction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
A method for detecting and quantifying uranium(VI) levels on building materials that include concrete, Plexiglas, glass and steel surfaces is presented. Uranium(VI) was extracted from building material surfaces using a pH 2.2 buffer rinse and, subsequently complexed by an organic chelating agent, arsenazo III. The application of a uranium-chelating molecule, arsenazo III, allows for concentration enhancement using C18 solid phase extraction and colorimetric detection of the uranium complex using ultraviolet-visible spectroscopy at 654Â nm. The method has a detection limit (based on 3Ï) of 40Â ng/L (5Â ng/cm2) and an overall extraction efficiency greater than 80% for each surface type (concrete, Plexiglas, glass, steel). Methods to prevent interference by metal ions commonly found on building materials are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 66, Issue 4, 15 May 2005, Pages 961-966
Journal: Talanta - Volume 66, Issue 4, 15 May 2005, Pages 961-966
نویسندگان
Philip A. Greene, Christine L. Copper, David E. Berv, Jeremy D. Ramsey, Greg E. Collins,