he results of Tessier's extraction of calcium, copper, iron and manganese in sediments using conventional and microwave heating were compared. The metals were determined by atomic absorption spectrometry with flame and electrothermal atomization. Magnesium chloride (extractant of exchangeable fraction) was replaced with ammonium acetate. Sediments collected from the Venice lagoon were analysed. The results showed that microwave heating produces results comparable to those of conventional heating with a much shorter operating time.

Comparison between microwave and conventional heating procedures in Tessiers extractions of calcium, copper, iron and manganese in a lagoon sediment

GULMINI, Monica;ZELANO, Vincenzo;TORAZZO, Annamaria
1994

Abstract

he results of Tessier's extraction of calcium, copper, iron and manganese in sediments using conventional and microwave heating were compared. The metals were determined by atomic absorption spectrometry with flame and electrothermal atomization. Magnesium chloride (extractant of exchangeable fraction) was replaced with ammonium acetate. Sediments collected from the Venice lagoon were analysed. The results showed that microwave heating produces results comparable to those of conventional heating with a much shorter operating time.
119
2075
2080
sequential extraction. sediment analysis; microwave heating; atomic absorption spectrometry
M. Gulmini; G. Ostacoli; V. Zelano; A. Torazzo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/54613
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