Buscar
Itens para a visualização no momento 11-20 of 34
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 resíduos de glifosato e ácido aminometilfosfônico em água empregando derivatização com FMOC-Cl e LC-MS/MS
(Universidade Federal de Santa Maria, 2020-02-21)
A simple and easy method based on the derivatization for determinação of glyphosate and aminomethylphosphonic acid (AMPA) in water and subsequent determination by liquid chromatography coupled with mass spectrometry in ...
Determinação multirresíduo de agrotóxicos em água empregando SPE e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2020-03-02)
The presence of organic pollutants in water resources is a major concern. The most commonly reported of these pollutants are generated by domestic, agricultural and industrial activities. Organic pollutants produce a wide ...
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 utilizando a microextração líquido-líquido dispersiva em fase reversa para determinação de As, Cd, Hg, Pb, Co, Ni e V em excipientes farmacêuticos oleosos
(Universidade Federal de Santa Maria, 2021-03-05)
In this study, an extraction method using oily pharmaceutical excipients was developed for further determination of elemental impurity from classes 1(As, Cd, Hg, and Pb) and 2A (Co, Ni, and V) according to ICH Q3D. The ...
Determinação de resíduos de avermectinas em soja, feijão e milho empregando método QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-26)
Soybeans and beans are considered oleaginous plants of great economic importance in Brasil. Maize is a cereal that also generates profitability for the economy, but its use, to a large extent, is as animal feed. In the ...
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 ...
Método multirresíduo de agrotóxicos em caqui empregando QuEChERS sem limpeza do extrato e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2022-03-16)
Pesticides are widely used in food crops and residues of these compounds may be present in these crops. Despite their large-scale use in agriculture, pesticides can be dangerous to human health, animals and the environment. ...
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 berinjela empregando método QuEChERS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2022-09-05)
The intensive use of pesticides in agriculture, especially herbicides, insecticides and
fungicides, aims to control pests and diseases in order to increase production. On the
other hand, consumers of these products can ...