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Analysis of Paired Microresidues Using Filter Fluorometry

Published online by Cambridge University Press:  12 June 2017

C. E. Goering  and
B. J. Butler
C. E. Goering
Affiliation:
Dep. of Agr. Engr., Univ. of Missouri, Columbia, MO 65201
B. J. Butler
Affiliation:
Dep. of Agr. Engr., Univ. of Illinois, Urbana, IL 61801
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Abstract

Pesticide drift studies were conducted in which two formulations were sprayed simultaneously to eliminate meteorological differences. One formulation was traced with Brilliant Sulfo Flavine (BSF) dye and the other with Rhodamine B (RhB) dye. Combined drift from both formulations was caught downwind on Mylar sheets. A filter fluorometer was used to analyze the deposits. By proper selection of a light source, primary filters, and secondary filters, the BSF was excluded while the RhB was analyzed, and vice versa. Concentrations below 1.0 μg/L were accurately measured.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 5 , September 1974 , pp. 512 - 515
Copyright
Copyright © 1974 by the Weed Science Society of America 

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References

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