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A platform for research: civil engineering, architecture and urbanism
Application of high-energy polarised-beam energy dispersive X-ray fluorescence spectrometry to cadmium determination in saline solutions.
In the present work, the analytical performance of a methodology based on a preconcentration using activated thin layers followed by high-energy polarised beam energy-dispersive XRF spectrometry (HE-P-EDXRF) for the determination of trace amounts of Cd in saline solutions is presented. Linear calibration curves were obtained over the range 5–8000 μg L−1 of Cd. When comparing the developed method to the direct analysis of Cd in sea water, the detection limits were improved by several orders of magnitude, with values of 2.25 μg L−1 (Al2O3 target) and 0.075 μg L−1 (CsI target), respectively. The accuracy was checked by analyzing spiked natural sea water at Cd concentrations of 20, 100 and 600 μg L−1 and results were compared to those obtained with anodic stripping voltametry and no significant differences at the 95% confidence level were found. The method has a good reproducibility over the investigated period of time and the precision of the method was better than 10%. ; This research has been developed in the framework of the Spanish National Research Programme (Projects: CGL2004- 05963-C04/HID and CGL2007-66861-C4). ; Peer reviewed
Application of high-energy polarised-beam energy dispersive X-ray fluorescence spectrometry to cadmium determination in saline solutions.
In the present work, the analytical performance of a methodology based on a preconcentration using activated thin layers followed by high-energy polarised beam energy-dispersive XRF spectrometry (HE-P-EDXRF) for the determination of trace amounts of Cd in saline solutions is presented. Linear calibration curves were obtained over the range 5–8000 μg L−1 of Cd. When comparing the developed method to the direct analysis of Cd in sea water, the detection limits were improved by several orders of magnitude, with values of 2.25 μg L−1 (Al2O3 target) and 0.075 μg L−1 (CsI target), respectively. The accuracy was checked by analyzing spiked natural sea water at Cd concentrations of 20, 100 and 600 μg L−1 and results were compared to those obtained with anodic stripping voltametry and no significant differences at the 95% confidence level were found. The method has a good reproducibility over the investigated period of time and the precision of the method was better than 10%. ; This research has been developed in the framework of the Spanish National Research Programme (Projects: CGL2004- 05963-C04/HID and CGL2007-66861-C4). ; Peer reviewed
Application of high-energy polarised-beam energy dispersive X-ray fluorescence spectrometry to cadmium determination in saline solutions.
Van Meel, K. (author) / Fontàs, Claudia (author) / Van Grieken, R. (author) / Queralt Mitjans, Ignacio (author) / Hidalgo, M. (author) / Marguí, Eva (author)
2008-04-01
doi:10.1039/b718382h
Article (Journal)
Electronic Resource
English
DDC:
690
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