Premium
A thermogravimetric analysis study of volatilization of flux mixtures used in XRF sample preparation
Author(s) -
Loubser Maggi,
Strydom Christien,
Potgieter Herman
Publication year - 2004
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.700
Subject(s) - thermogravimetric analysis , muffle furnace , volatilisation , lithium (medication) , flux (metallurgy) , differential scanning calorimetry , boron , lithium borate , analytical chemistry (journal) , thermal analysis , materials science , mineralogy , chemistry , thermal , metallurgy , borate glass , environmental chemistry , thermodynamics , organic chemistry , medicine , physics , calcination , endocrinology , catalysis
This paper deals with the thermal behaviour occurring during the formation of lithium borate glasses. Thermogravimetric analysis and differential scanning calorimetry were employed to identify reactions occurring during fusion in pure flux mixtures. The conditions around the identified reactions were reproduced in a muffle furnace to obtain larger quantities of material for further investigation using spectroscopic techniques. It was shown that above 1050°C lithium borate fluxes volatilize, which could lead to inaccurate analytical results. Copyright © 2004 John Wiley & Sons, Ltd.