| Автор | Moreda�Pi�eiro, Antonio |
| Автор | Marcos, Ana |
| Автор | Fisher, Andrew |
| Автор | Hill, Steve J. |
| Дата выпуска | 2001 |
| dc.description | This paper describes the application of a trilinear parallel factor analysis (PARAFAC) to study systematic error during the multi-element determination of a range of analytes in acid digests of solid samples (tea leaves) by ICP-AES and ICP-MS. The three variables studied were the â number of digestionsâ , in order to assess the systematic error associated with the sample pre-treatment, and the â number of replicatesâ and â calibrationâ , to provide information on the systematic error associated with the analytical determination itself. The elements under study were Co, Cr, Cu, Ni, Pb, Rb and Ti by ICP-MS, and Ba, Ca, Fe, Mg, Mn, Sr and Zn by both ICP-MS and ICP-AES. For some elements flame atomic absorption spectrometry was used for comparative purposes. A Chinese tea certified reference material containing many of the metals above was used in the study. The results obtained were compared to results from ANOVA. It was found that the systematic error, expressed as the sum of squares after PARAFAC, was quite different from the results obtained using ANOVA due to the very different way in which the models are built. The PARAFAC approach is shown to be straightforward to implement and robust. |
| Формат | application.pdf |
| Издатель | Royal Society of Chemistry |
| Название | Parallel factor analysis for the study of systematic error in inductively coupled plasma atomic emission spectrometry and mass spectrometry |
| Тип | research-article |
| DOI | 10.1039/b008847l |
| Electronic ISSN | 1364-5544 |
| Print ISSN | 0267-9477 |
| Журнал | Journal of Analytical Atomic Spectrometry |
| Том | 16 |
| Первая страница | 360 |
| Последняя страница | 369 |
| Аффилиация | Moreda-Piñeiro Antonio; Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela |
| Аффилиация | Marcos Ana; Department of Environmental Sciences, Plymouth Environmental Research Centre, University of Plymouth |
| Аффилиация | Fisher Andrew; Department of Environmental Sciences, Plymouth Environmental Research Centre, University of Plymouth |
| Аффилиация | Hill Steve J.; Department of Environmental Sciences, Plymouth Environmental Research Centre, University of Plymouth |
| Выпуск | 4 |
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