English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/20034
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Analysis of alcohol ethoxylates and alkylamine ethoxylates in agricultural soils using pressurised liquid extraction and liquid chromatography-mass spectrometry

AuthorsKrogh, Kristine A.; Mogensen, Betty Bügel; Halling-Sørensen, Bent; Cortés, Amparo; Vejrup, Karl V.; Barceló, Damià
KeywordsAlcohol ethoxylates
Alkylamine ethoxylates
Pressurised liquid extraction
Adjuvants
Environmental analysis
Surfactants
Pesticides
Soil
Issue Date7-Aug-2003
PublisherSpringer
CitationAnalytical and Bioanalytical Chemistry 376(7): 1089-1097 (2003)
AbstractNonionic surfactants e.g. alcohol ethoxylates (AEOs) and alkylamine ethoxylates (ANEOs) are commonly utilised as adjuvants in pesticide formulations to enhance their effectiveness. In this study, analytical methods for AEO and ANEO determination in soil samples using pressurised liquid extraction (PLE) were developed and used in connection with LC–MS. The recovery of the method, which was highly dependent on the soil properties, varied in the range 47–106% for AEO and 27–109% for ANEO. Detection limits (LOD) were 7–13 µg kg–1 for AEO and 24–43 µg kg–1 for ANEO. The developed method has been applied to determine AEOs and ANEOs in surface soil samples from fields sprayed with glyphosate herbicides. Tallowalkylamine ethoxylates (an ANEO) were detected in the soil before and after pesticide application, with increasing concentrations after treatment. The highest concentration in the soil samples was observed for the ANEO homologues with the longest ethoxy chains; in the clay soil the concentration decreased with the length of the ethoxy chain. ANEOs added to pesticide formulations as a technical mixture will, as demonstrated in this study, behave as individual homologues, which is reflected in their behaviour in the environment.
Description9 pages, 3 figures, 7 tables.-- PMID: 12904945 [PubMed].-- Printed version published Aug 2003.
Publisher version (URL)http://dx.doi.org/10.1007/s00216-003-2062-3
URIhttp://hdl.handle.net/10261/20034
DOI10.1007/s00216-003-2062-3
ISSN1618-2642
E-ISSN1618-2650
Appears in Collections:(IDAEA) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.