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Detection of Herbicides Using Fluorescence Spectroscopy

Published online by Cambridge University Press:  12 June 2017

Thomas C. Mueller ,
Thomas B. Moorman  and
Martin A. Locke
Thomas C. Mueller
Affiliation:
USDA-ARS, South. Weed Sci. Lab. Stoneville, MS 38776
Thomas B. Moorman
Affiliation:
USDA-ARS, South. Weed Sci. Lab. Stoneville, MS 38776
Martin A. Locke
Affiliation:
USDA-ARS, South. Weed Sci. Lab. Stoneville, MS 38776
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Abstract

Fluorescence spectroscopy offers several advantages over other methods of detection and quantitation of chemical compounds. This technique has been underutilized in detection and quantitation of herbicides. The fluorescence properties of 39 herbicides representing several major types of chemistry were determined. The fluorescence of analytical standards was measured in acetonitrile, acetonitrile + water, and acetonitrile + water + strong acid. Fourteen of the 39 herbicides fluoresced to some extent, and seven (bentazon, chloramben, difenzoquat, fluometuron, imazaquin, MCPA, and norflurazon) were identified as good candidates for further method development. The technical advantages and disadvantages of fluorescence spectroscopy of herbicides are discussed.

Keywords

Bentazon, 3-(1-methylethyl)-(1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidechloramben, 3-amino-2,5-dichlorobenzoic aciddifenzoquat, 1,2-dimethyl-3,5-diphenyl-1H-pyrazoliumfluometuron, N,N-dimethyl-N′-[3-(trifluoromethyl)phenyl]ureaimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidMCPA, (4-chloro-2-methylphenoxy) acetic acidnorflurazon, 4-chloro-5-(methylamino)-2-(3-(trifluoromethyl)phenyl)-3(2H)-pyridazinoneChemical analysisherbicide detectionHPLCpesticidefluorescence detection
Type
Soil, Air, and Water
Information
Weed Science , Volume 40 , Issue 2 , June 1992 , pp. 270 - 274
Copyright
Copyright © 1992 by the Weed Science Society of America 

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References

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