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Determinação de resíduos de compostos orgânicos em água por microextração líquido-líquido dispersiva (DLLME) E GC-(TQ)MS/MS
(Universidade Federal de Santa Maria, 2010-11-29)
The use of chemicals, which generates a lot off benefits, is responsible for the contamination of soil, water and foods. The concern about contamination of surface
and ground water systems by pesticides has grown in ...
Validação e aplicação de método empregando QuEChERS modificado e GC-ECD para determinação de resíduos de pesticidas em grão e casca de arroz
(Universidade Federal de Santa Maria, 2010-08-12)
The current agriculture is characterized by the use of new technologies and equipment, the increased number of agronomic research and the use of a variety of inputs such as pesticides and fertilizers. All this is directly ...
Avaliação da técnica de extração sortiva em disco rotatório (RDSE) para determinação multirresíduo de agrotóxicos em água por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2017-02-24)
The use of pesticides in agriculture and urban areas has always been associated with advantages and disadvantages. As benefits, the increase of the productivity of crops and the control of vectors that cause diseases can ...
Resíduos de agrotóxicos em ameixa, maçã, pera e pêssego: desenvolvimento de métodos de análise e monitoramento
(Universidade Federal de Santa Maria, 2017-02-06)
In recent years, the indiscriminate use of pesticides and a lack of adoption of good
agricultural practices have been evidenced by the results of analyzes of residues of
pesticides in food. Thus, the goal of this work ...
Desenvolvimento e validação de método multirresíduo para determinação de agrotóxicos em trigo por LC-MS/MS e GC-MS/MS
(Universidade Federal de Santa Maria, 2014-10-29)
Não foi possível inserir o abstract.
Determinação de cloro, enxofre, cobalto, níquel e vanádio em petróleos após combustão iniciada por micro-ondas em frascos descartáveis
(Universidade Federal de Santa Maria, 2020-11-26)
In this work, sample preparation methods based on microwave-induced combustion in disposable vessel (MIC-DV) for the determination of Cl, S by ICP OES, Co, Ni and V by ICP-MS in petroleum were developed. The main operational ...
Determinação multirresíduo de agrotóxicos em tomate, beterraba e cenoura empregando QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2020-04-17)
Beet, carrot and tomato are foods with a high content of water, sugars and pigments, which are among the most cultivated and consumed vegetables worldwide and frequently contain pesticide residues. Therefore, a simple ...
Desenvolvimento de método para determinação multiclasse de resíduos de medicamentos veterinários em músculo suíno por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2022-04-08)
In swine farming, veterinary drugs are mainly applied to provide animal’s health. However, incorrect use can cause the presence of residues of these substances above the maximum limit allowed (MRL) in pork, and because of ...
Determinação multirresíduo de agrotóxicos em tabaco empregando método QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2022-05-27)
Tobacco is the most widely grown non-food crop in the world, a wide variety of substances are used in it during and after its cultivation to protect it from pests, diseases and regulate its growth. Therefore, it is necessary ...
Determinação multirresíduo de agrotóxicos em abelha (Apis mellifera) empregando mini-QuEChERS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2022-10-28)
Brazil has a favorable climate for extensive agricultural production, which is generally associated with the intensive use of pesticides. The harmful effect of pesticides on bee health is a topic of global concern. In the ...