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Project ID: ICA4-CT-2002-10011
Źródło dofinansowania: FP5-INCO 2
Kraj: Argentina

New analytical methods for pesticide determination

Extraction and analysis of atrazine and 2,4-D in soils with high content of humic compounds

Due to the widespread implementation of herbicides in the modern farming practices, it became necessary to develop analytical techniques for monitoring the presence and fate of these compounds and its metabolites in the environment in a fast and non-expensive way. That knowledge is an irreplaceable tool to assess the impact of agrochemicals on the different ecosystems and improve the management strategies for their application, preserving in that way the environment.

UBA group has improved processes to extract and analyze chlorinated herbicides such as 2,4-dichlorophenoxyacetic acid (2,4-D) and atrazine, as well as some of their derivatives and metabolites in soils with high amounts of organic matter (especially humic compounds). In this way, a new prospective emerge for analysis and monitoring of those xenobiotics in the highly complex matrix of humic soils, without increasing the costs or the technological requirements.

In countries with agro-exporting schemes, where herbicides are widely used, this kind of improvement acquires a central relevance, especially when there is a limited economical support for technology. That is why, in the future, this simple and low cost technology could be an available tool for people dedicated to organic farming practices and agricultural biochemical analyses, for monitoring bioremediation protocols, and even for Health and Environmental Control organisms. The improved methods allow assessing environmental herbicides levels without any lost in accuracy or sensibility.

Perkin Elmer and UTFSM group has improved processes to extract and analyze chlorinated herbicides such as simazine and atrazine in soil samples.

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