Article

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

X-Ray Spectrometry (Impact Factor: 1.55). 04/2004; 33(3):212 - 215. DOI: 10.1002/xrs.700

ABSTRACT 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.

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