Assessing the transfer of pesticides to the atmosphere during and after application. Development of a multiresidue method using adsorption on Tenax and thermal desorption-GC/MS - EHESP - École des hautes études en santé publique Access content directly
Journal Articles Analytical and Bioanalytical Chemistry Year : 2002

Assessing the transfer of pesticides to the atmosphere during and after application. Development of a multiresidue method using adsorption on Tenax and thermal desorption-GC/MS

Olivier Briand
  • Function : Author
Maurice Millet
  • Function : Author
Florence Bertrand
  • Function : Author
Michel Clément
  • Function : Author

Abstract

An air sampling and analytical method based on adsorption on porous polymer “Tenax TA” followed by automatic thermal desorption “ATD” and GC/MS analysis was developed for ten pesticides commonly used on major crops in Britanny and some of their metabolites in air “from spray drift and volatilisation transfer processes”: alachlor, atrazine “and two major degradation products: deethylatrazine and deisopropylatrazine”, carbofuran, cyprodinil, epoxyconazole, iprodione “and 3,5-dichloroaniline”, lindane “and -HCH, its isomer”, metolachlor, terbuconazole and trifluralin. This method was established with special consideration for optimal thermal desorption conditions, linear ranges, limits of detection and quantification. Moreover, collection efficiencies of Tenax TA at room temperature were examined. This method was then applied to the determination of ambient pesticide levels during the spraying season at a rural area. The method was also applied to determine the vertical gradient of alachlor concentrations on a treated maize parcel to evaluate volatilisation fluxes.

Dates and versions

hal-03866445 , version 1 (22-11-2022)

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Cite

Olivier Briand, Maurice Millet, Florence Bertrand, Michel Clément, René Seux. Assessing the transfer of pesticides to the atmosphere during and after application. Development of a multiresidue method using adsorption on Tenax and thermal desorption-GC/MS. Analytical and Bioanalytical Chemistry, 2002, 374 (5), pp.848-857. ⟨10.1007/s00216-002-1526-1⟩. ⟨hal-03866445⟩

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