| View Larger Image | Multisyringe flow injection analysis of stable and radioactive yttrium in water and biological samples [An article from: Analytica Chimica Acta] | Digitalby Y. Fajardo (Author), E. Gomez (Author), F. Garcias (Author), V. Cerda (Author), Casas (Author)
| List Price: | $10.95 | | | Available: | Available for download now |
| | Binding: | Digital | | Publisher: | Elsevier | | Publication Date: | May 10, 2005 |
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Product Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: A novel multisyringe flow injection (MSFIA) method for the determination of stable and radioactive yttrium by means of a liquid-liquid extraction has been developed. An on-line column containing di-2-ethylhexylphosphoric acid (HDEHP) - a highly selective extractant for the analyte - adsorbed on a C18 support is employed to carry out the isolation from the matrix. Stable and radioactive yttrium concentrations are determined by inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and by a low background proportional counter, respectively. The proposed method shows important advantages because the manual handling of radioactive samples is avoided and throughput is increased. Moreover, as the extractant can be reused, cost per analysis and waste generation are reduced. The lower limit of detection (LLD) of stable yttrium is 10@mgl^-^1, whereas for ^9^0Y is 0.05Bq. The automated isolation process yields a yttrium recovery close to 100% with a relative standard deviation of 2.3% (n=10). Our methodology has been successfully applied to different spiked water and biological samples. |
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