|
|||||
|
|
PIXE and PIGE techniques for the analysis of Antarctic ice dust and continental sediments |
|
| Authors: | F. Marino G. Calzolai E. Castellano F. Lucarelli S. Nava R. Udisti |
| Affiliation: | a Environmental Sciences Department (DISAT), University of Milan-Bicocca, Milan, Italy b Chemistry Department, University of Florence, Sesto Fiorentino (Florence), Italy c INFN, Via G. Sansone 1, I-50019 Sesto Fiorentino (Firenze), Florence, Italy d Physics Department and INFN, University of Florence, Sesto Fiorentino (Florence), Italy e Earth Science Department, University of Milan, Milan, Italy f MNA, Antarctic National Museum, Sienna, Italy |
| Abstract: | An analytical procedure has been implemented in this work for an accurate geochemical characterization and quantitative analysis of the fine dust (particles diameter < 5 μm) trapped in Antarctic ice cores and the fine fraction of potential source areas (PSA) sediments by size selection, filtering and PIXE-PIGE combined measurements. The underestimation of concentrations of the lighter elements, like Na, Mg, Al and Si, due to X-ray self-absorption inside each individual aerosol particle, was also evaluated and the analytical overall accuracy tested by means of measurements performed on size selected certified mineral standards. |
| Keywords: | 82.80.Ej 91.67.Pq 92.40.Vq 92.60.Ry 96.12.Qr |
| 本文献已被 ScienceDirect 等数据库收录！ | |