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Extraction and Determination of Atrazine from Soil

Published online by Cambridge University Press:  12 June 2017

Marshal D. McGlamery ,
Fred W. Slife  and
Harold Butler
Marshal D. McGlamery
Affiliation:
Department of Agronomy, University of Illinois, Urbana
Fred W. Slife
Affiliation:
Department of Agronomy, University of Illinois, Urbana
Harold Butler
Affiliation:
Department of Agronomy, University of Illinois, Urbana
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Abstract

Methods of extraction, cleanup, and determination of 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine) residues from soil were studied. Two-hr soxhlet extraction with methanol was more efficient than shaking extraction with methanol or other solvents. The most successful cleanup method was the use of grade IV basic alumina columns. Polyethylene coated alumina columns were useful if the soil extracts contained high amounts of pigments. A pyridine-alkali-ethylcyanoacetate method of determination was more sensitive and had better color stability than the pyridine-alkali method. Another advantage of the method with ethylcyanoacetate was that a pink chromophore was determined rather than a yellow chromophore which is subject to high interference from yellow pigments from soil extracts.

Type
Research Article
Information
Weeds , Volume 15 , Issue 1 , January 1967 , pp. 35 - 38
Copyright
Copyright © 1967 Weed Science Society of America 

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References

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