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- Publisher
- Wiley
- Copyright
- Copyright © 2000 Wiley Subscription Services, Inc., A Wiley Company
- ISSN
- 0323-4320
- eISSN
- 1521-401X
- DOI
- 10.1002/1521-401X(200012)28:6<292::AID-AHEH292>3.0.CO;2-I
- Publisher site
- See Article on Publisher Site
Abstract
In the present study an analytical method was tested for the determination of selected pesticides and metabolites using solid‐phase extraction (SPE) and gas chromatography ion‐trap mass spectrometry (GC‐MS). The extraction efficiency of C18, Isolut ENV+, and Lichrolut EN for SPE was compared for trifluralin, fenitrothion, endosulfan, propargite, 2,4‐D, 3‐methyl‐4‐nitrophenol, 2‐(4‐tert‐butylphenoxy)cyclohexanol, endosulfan sulfate, and 2,4‐dichlorophenol. Isolut ENV+ and C18 showed good results as sorbents and acetone as an elution solvent for SPE for the selected pesticides. Recoveries varied between 36% and 176% with a relative standard deviation of 2...18%. Because of coextracts from the SPE materials, recovery values higher than 100% were obtained for fenitrothion, endosulfan sulfate, and 2,4‐D with C18 as well as for endosulfan sulfate and 3‐methyl‐4‐nitrophenol with Isolut ENV+. A standard addition method was used to verify the occurrence of coextracts in the sample after SPE.
Journal
Acta hydrochimica et hydrobiologica – Wiley
Published: Dec 1, 2000
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