Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10560467 | Talanta | 2011 | 7 Pages |
Abstract
The effectiveness of the halogenation method was verified with the determination of Er and Nd dopants in the optical crystals. In these analyses, a sensitivity decrease was observed, which was likely due to the enhanced deterioration of the graphite tube surface. Therefore, the application of mathematical correction (resloping) of the calibration was also required. The calibration curves were linear up to 1.5 and 10 μmol Lâ1 for Er and Nd, respectively. Characteristic masses of 18 and 241 pg and the limit of detection (LOD) values of 0.017 and 0.27 μmol Lâ1 were found for Er and Nd, respectively. These LOD data correspond to 0.68 μmol molâ1 Er and 11 μmol molâ1 Nd in solid bismuth tellurite samples. The analytical results were compared with those obtained by a conventional ETAAS method and validated with X-ray fluorescence spectrometry analysis.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Krisztina György, Zsolt Ajtony, Katleen Van Meel, René Van Grieken, Aladár Czitrovszky, László Bencs,