DBPapers
DOI: 10.5593/SGEM2015/B32/S13.055

ULTRASONIC EXTRACTION – A QUICK METHOD OF ISOLATION OF COMPONENT FORMS IN A FRACTIONAL ANALYSIS OF SOIL

M. Badida, T. Jezny, M. Hurajt
Thursday 24 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-37-7 / ISSN 1314-2704, June 18-24, 2015, Book3 Vol. 2, 409-416 pp

ABSTRACT
Ultrasonic extraction is often used in many applications for a preparation of various samples and is considered as an alternative method to conventional extraction methods. The utilization of ultrasound in a decomposition of solid environmental samples before determination of total content of components becomes the alternative solution of time-consuming wet decomposition and reduces a potentiality of the sample contamination during this step.The paper presents results of optimization of ultrasound supported one-step extraction of soil extraction (of two grain fractions) taken in the vicinity of U. S. Steel s.r.o. metallurgical processing plant by ethylenediaminetetraacetic acid (EDTA). For ultrasound generation, a titanium probe was used and the generator performance and extraction period of time was optimized. The results of ultrasonic extraction were compared with the results of the conventional 1-hour extraction.The extraction period of time was shortened by ultrasound influence to 4 minutes at generator performance of 400 W. The results also highlighted the influence of particles size on a course of ultrasonic extraction. The experiments proved that the extraction velocity grows significantly with decreasing size.

Keywords: Soil, Fractional Analysis, One-step Extraction, Ultrasound, EDTA

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