Portable x-ray fluorescence for assessing trace elements in rice and rice products: Comparison with inductively coupled plasma-mass spectrometry
| Autor: | Kelly A. Foran, David E.B. Fleming, Jong Sung Kim, Judy Guernsey |
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| Rok vydání: | 2015 |
| Předmět: |
Analytical chemistry
chemistry.chemical_element Food Contamination Manganese Zinc 010501 environmental sciences Mass spectrometry Sensitivity and Specificity 01 natural sciences Mass Spectrometry Inductively coupled plasma mass spectrometry Arsenic 0105 earth and related environmental sciences Miniaturization Radiation 010401 analytical chemistry Reproducibility of Results Spectrometry X-Ray Emission food and beverages Oryza Equipment Design Copper Fluorescence 0104 chemical sciences Equipment Failure Analysis Nickel chemistry Metals Food Analysis |
| Zdroj: | Applied Radiation and Isotopes. 104:217-223 |
| ISSN: | 0969-8043 |
| DOI: | 10.1016/j.apradiso.2015.07.014 |
| Popis: | Portable x-ray fluorescence (XRF) was investigated as a means of assessing trace elements in rice and rice products. Using five measurement trials of 180 s real time, portable XRF was first used to detect arsenic (As), manganese (Mn), iron (Fe), nickel (Ni), copper (Cu), and zinc (Zn) in a variety of rice samples. The same samples were then microwave-digested and used to determine elemental concentrations using inductively coupled plasma-mass spectrometry (ICP-MS). The concentrations of As, Mn, Fe, Cu, and Zn determined by ICP-MS were found to be consistent with other recent studies involving various types of rice and rice products. When assessing for As, Mn, Fe, Cu, and Zn, comparison of results between XRF amplitude and ICP-MS concentration (wet weight) demonstrated a linear relationship with a significant correlation. A significant correlation between XRF amplitude and ICP-MS concentration was not found when assessing for Ni. |
| Databáze: | OpenAIRE |
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