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The Detection of Trifluralin Vapors in Air

Published online by Cambridge University Press:  12 June 2017

M. L. Ketchersid ,
R. W. Bovey  and
M. G. Merkle
M. L. Ketchersid
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., College Station, Texas
R. W. Bovey
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., College Station, Texas
M. G. Merkle
Affiliation:
Soil and Crop Science Department, Texas A&M University
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Abstract

The volatilization of α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) from a Miller clay and commercial sand was determined by analysis of air samples above the soils. The method requires no extraction of soil or traps and is sensitive to approximately 8 ppm of trifluralin in air. The loss of trifluralin was influenced more by soil moisture than by soil type. Data indicated that trifluralin vapors in air are photolytically degraded. Similar studies were conducted with 4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline (nitralin), but volatilization was so slow that detectable concentrations of this herbicide did not occur.

Information

Type
Research Article
Information
Weed Science , Volume 17 , Issue 4 , October 1969 , pp. 484 - 485
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

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