Procedure for the determination of 2,4‐D and dicamba in inhalation,dermal, hand‐wash,and urine samples from spray applicators |
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Authors: | R Grover AJ Cessna LA Kerr |
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Institution: | Research Station , Agriculture Canada , Regina, Saskatchewan, Canada , S4P 3A2 |
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Abstract: | Abstract Analytical procedures for the simultaneous determination of residues of 2,4‐D and dicamba from polyurethane foam plug air samplers, ethylene glycol impregnated glass‐fiber filter paper dermal samplers, 1% sodium bicarbonate hand wash solution, and urine are presented. Residues were derivatized with diazomethane and quantitated using electron capture gas chromatography. Recoveries were greater than 80% at the limit of detection in all substrates. The limits of detection for both herbicides were 0.1 μg/foam plug and 0.5 μg/filter paper, and in the urine, 1.7 μg/100 mL and 5.0 μg/100 mL for dicamba and 2,4‐D, respectively. |
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Keywords: | 2 4‐D dicamba exposure applicator foam‐plugs herbicides |
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