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Long-Term Studies of Fungicide Concentrations in Greenhouses. 1. Technique for Determining Surficial Foliar Residues of Fungicides with Vinclozolin and Triadimefon as Model Compounds.

Papantoni, Margareta LU ; Mathiasson, Lennart LU and Nilsson, Ulla (1995) In Journal of Agricultural and Food Chemistry 43(1). p.157-164
Abstract

A new analysis procedure for fungicides has been developed gearing toward estimation of worker exposure in greenhouses. The procedure includes sampling on leaves, glass, and polymers using vinclozolin and triadimefon as model substances and starts with solvation of the fungicides with ethanol from the surface. It proceeds by collection of the solution on disks of cloth, disk extraction with excess of ethanol, evaporation of the solution to dryness, and addition of 1-chlorobutane and ends finally with HPLC determination. Validations of the evaporation step, the desorption of analyte from the disks, and the whole procedure were performed separately. The whole procedure gave recoveries of vinclozolin and triadimefon on leaves of 74% (RSD... (More)

A new analysis procedure for fungicides has been developed gearing toward estimation of worker exposure in greenhouses. The procedure includes sampling on leaves, glass, and polymers using vinclozolin and triadimefon as model substances and starts with solvation of the fungicides with ethanol from the surface. It proceeds by collection of the solution on disks of cloth, disk extraction with excess of ethanol, evaporation of the solution to dryness, and addition of 1-chlorobutane and ends finally with HPLC determination. Validations of the evaporation step, the desorption of analyte from the disks, and the whole procedure were performed separately. The whole procedure gave recoveries of vinclozolin and triadimefon on leaves of 74% (RSD 4.2%) and 79% (RSD 5.0%), respectively, and on hard surfaces around 90% (RSD ca. 6 %) for both substances. The losses in the evaporation and in the desorption step were small, the major losses occurring when the fungicide was collected from the surface. Also, some degradation products of vinclozolin and triadimefon, i.e., 3,5-dichloroaniline, triadimenol, and p-chlorophenol, were briefly studied.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Foliar surface sampling, Fungicide residue determination, Triadimefon, Vinclozolin
in
Journal of Agricultural and Food Chemistry
volume
43
issue
1
pages
8 pages
publisher
The American Chemical Society
external identifiers
  • scopus:0008549052
ISSN
0021-8561
DOI
10.1021/jf00049a029
language
English
LU publication?
yes
id
210c2087-bef0-47c2-a8b9-5472d7b4259c
date added to LUP
2016-12-09 14:55:57
date last changed
2017-07-05 23:18:01
@article{210c2087-bef0-47c2-a8b9-5472d7b4259c,
  abstract     = {<p>A new analysis procedure for fungicides has been developed gearing toward estimation of worker exposure in greenhouses. The procedure includes sampling on leaves, glass, and polymers using vinclozolin and triadimefon as model substances and starts with solvation of the fungicides with ethanol from the surface. It proceeds by collection of the solution on disks of cloth, disk extraction with excess of ethanol, evaporation of the solution to dryness, and addition of 1-chlorobutane and ends finally with HPLC determination. Validations of the evaporation step, the desorption of analyte from the disks, and the whole procedure were performed separately. The whole procedure gave recoveries of vinclozolin and triadimefon on leaves of 74% (RSD 4.2%) and 79% (RSD 5.0%), respectively, and on hard surfaces around 90% (RSD ca. 6 %) for both substances. The losses in the evaporation and in the desorption step were small, the major losses occurring when the fungicide was collected from the surface. Also, some degradation products of vinclozolin and triadimefon, i.e., 3,5-dichloroaniline, triadimenol, and p-chlorophenol, were briefly studied. <br/></p>},
  author       = {Papantoni, Margareta and Mathiasson, Lennart and Nilsson, Ulla},
  issn         = {0021-8561},
  keyword      = {Foliar surface sampling,Fungicide residue determination,Triadimefon,Vinclozolin},
  language     = {eng},
  number       = {1},
  pages        = {157--164},
  publisher    = {The American Chemical Society},
  series       = {Journal of Agricultural and Food Chemistry},
  title        = {Long-Term Studies of Fungicide Concentrations in Greenhouses. 1. Technique for Determining Surficial Foliar Residues of Fungicides with Vinclozolin and Triadimefon as Model Compounds.},
  url          = {http://dx.doi.org/10.1021/jf00049a029},
  volume       = {43},
  year         = {1995},
}