X-ray Fluorescence spectrometry to characterize the chemical composition of ashes produced by the burning of savannah grasses. | [Nucleus • 1995]

Author(s):

1. J. P. Quisefit: Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA)Universite Paris 7 et Paris 12 - URA CNRS 1404, - 61, avenue du Gal de GAULLE - 94010 Creteil Cedex, France

2. S. Garivait: Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA)Universite Paris 7 et Paris 12 - URA CNRS 1404, - 61, avenue du Gal de GAULLE - 94010 Creteil Cedex, France

3. R. Losno: Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA)Universite Paris 7 et Paris 12 - URA CNRS 1404, - 61, avenue du Gal de GAULLE - 94010 Creteil Cedex, France

4. E. Steiner: Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA)Universite Paris 7 et Paris 12 - URA CNRS 1404, - 61, avenue du Gal de GAULLE - 94010 Creteil Cedex, France

Abstract:

In order to quantify the biomass burning emissions, the main atmospheric pollution source of the tropical and subtropical regions, we carried out the analysis of ashes that are also formed during these fires. With this aim, analytical methods to characterize the composition of Savannah grass burning ashes by using X-ray fluorescence for mineral elements and classical microanalysis for C, H, N and organic O have been developed. Samples used in this work have been collected during laboratory combustion experiments with chemically well-defined natural Savannah grasses from ivory Coast and South Africa. The reproducibility and efficiency of different procedures have been studied. The analytical relative precision is generally better than 5%. This development has allowed to establish for the first time, the global mass balance of ashes resulting from the burning of Savannah grasses.

Page(s): 135-142

DOI: DOI not available

Published: Journal: Nucleus, Volume: 32, Issue: 3--4, Year: 1995

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