A thermogravimetric analysis study of volatilization of flux mixtures used in XRF sample preparation

Autor:	Herman Potgieter, Christien A. Strydom, Maggi Loubser
Rok vydání:	2004
Předmět:	Thermogravimetry Thermogravimetric analysis chemistry.chemical_compound Lithium borate Differential scanning calorimetry Chemistry Analytical chemistry chemistry.chemical_element Lithium Sample preparation Muffle furnace Boron Spectroscopy
Zdroj:	X-Ray Spectrometry. 33:212-215
ISSN:	1097-4539 0049-8246
DOI:	10.1002/xrs.700
Popis:	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.
Databáze:	OpenAIRE
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