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Estudo da estabilidade a campo dos pesticidas carbofurano e quincloraque em água de lavoura de arroz irrigado empregando SPE e HPLC-DAD
(Universidade Federal de Santa Maria, 2007-07-24)
The use of pesticides to control pests, diseases and weeds in crops of agricultural interest aims at the increase of production. The degradation of applied compounds or their conversion into other products, does not ...
Estudo de métodos empregando HPLC-DAD e LC-MS/MS para a determinação de resíduos de herbicidas em água e solo do cultivo de arroz irrigado
(Universidade Federal de Santa Maria, 2007-12-20)
The irrigated agriculture of Rio Grande do Sul (RS) it is responsible for about 50% of the Brazilian production of rice, and the success of the production depends, generally, of the application of chemical substances. Many ...
Estudo de métodos empregando extração em fase sólida e análise por HPLC-DAD e GC-ECD para a determinação de resíduos de pesticidas em águas e da degradação a campo
(Universidade Federal de Santa Maria, 2007-02-26)
The culture of irrigated rice generates a great impact to the environment, both in the amount and the quality of waters. In this study, a methodology was developed and validated for the determination, in waters, of residues ...