Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Determinação de arsênio em águas contaminadas usando fluorescência de raios-X por energia dispersiva|
|Title Alternative:||Determination of arsenic in contaminated waters using energy dispersive X-ray fluorescence|
|Author:||Pataca, Luiz Carlos M.|
Bortoleto, Gisele G.
Bueno, Maria Izabel M. S.
|Abstract:||This work proposes a simple, fast and inexpensive method to determine As in natural waters, using X-ray fluorescence. 50 µL of each sample containing 100 mg L-1 of yttrium as internal standard were deposited over a 2.5 µm thickness MylarTM film. The samples were dried at 50 °C for 2 h. X-ray spectra were obtained using an EDXRF apparatus. The accuracy was determined by analyte addition/recovery and by comparison with Hydride Generation Atomic Absorption Spectrometry (HG AAS). A recovery of about 100% was obtained and the results were in good agreement with HG AAS. The method showed a relative standard deviation of 6.8% and a detection limit of 10.5 µg L-1 of As.|
|Editor:||Sociedade Brasileira de Química|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Files in This Item:
|S0100-40422005000400004.pdf||309.38 kB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.