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New methodology for sulfur analysis in geological samples by WD‐XRF spectrometry
Author(s) -
Gazulla M. F.,
Gómez M. P.,
Orduña M.,
Rodrigo M.
Publication year - 2008
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1092
Subject(s) - sulfur , pellets , mass spectrometry , chemistry , calibration curve , calibration , x ray fluorescence , barium , fluorescence spectrometry , combustion , analytical chemistry (journal) , fluorescence , environmental chemistry , chromatography , materials science , detection limit , inorganic chemistry , organic chemistry , mathematics , statistics , physics , quantum mechanics , composite material
This article describes a methodology for analysing sulfur in geological samples by wavelength‐dispersive x‐ray fluorescence (WD‐XRF) spectrometry. Calibration curves were constructed with different sulfur compounds in samples prepared in the form of both beads and pellets, and the results compared. A new way of preparing the beads has been established, adding the quantity of barium required for the sulfur contained in the sample to form a stable BaSO 4 compound, which suppresses the problem of sulfur loss during the fusion process. The methodology developed for the determination of sulfur by WD‐XRF analysis has been validated by comparing the findings with the results obtained using an independent method of combustion with infrared (IR) detection and analysing reference materials. Copyright © 2008 John Wiley & Sons, Ltd.