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Determinação simultânea de agrotóxicos e antibióticos em mel empregando uma extração rápida e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2015-08-28)
Não foi possível inserir o abstract.
Determinação de resíduos de agrotóxicos em fisalis (Physalis peruaviana L.) empregando QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2016-02-29)
In this study a fast and effective multiresidue method for the determination of 42
pesticides in goldenberry was developed and validated. A modified QuEChERS
method was established for sample preparation followed by ...
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 de resíduos de agrotóxicos em café verde empregando QuEChERS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2020-03-02)
Coffee is one of the most consumed beverages in the world and due to climatic diversity, reliefs, altitudes and latitudes Brazil is able to produce good quality coffee beans. Brazil is currently the largest producer and ...
Estudo de método para determinação de resíduos de agrotóxicos em uva por GC-MS
(Universidade Federal de Santa Maria, 2013-07-29)
The regulatory agencies are becoming increasingly stringent as regards the quality of the food. Thus, the development of analytical methods that help monitoring of pesticide residues, and it is essential in routine ...
Desenvolvimento e validação de método multirresíduo empregando GC-MS (NCI-SIM) para determinação de pesticidas em grãos de trigo e seus produtos processados
(Universidade Federal de Santa Maria, 2008-03-07)
In this study a multiresidue method for the determination of 24 pesticides in wheat, flour, bran and bread using GC-MS (NCI-SIM) mode was developed and validated. The objective of this study was to evaluate the pesticides ...
Determinação multirresíduo de agrotóxicos em água empregando microextração líquido-líquido dispersiva (DLLME) e GC-MS/MS
(Universidade Federal de Santa Maria, 2015-06-19)
The use of pesticides is related to effectiveness in pest control, as well as productivity
in food production in agriculture. However, the use of these substances in high
amounts is directly affecting water resources, ...
Avaliação de um modulador a ar comprimido para GC×GC e sua aplicação para determinação de resíduos de pesticidas piretróides em uva
(Universidade Federal de Santa Maria, 2008-02-22)
In this study, a new modulator that is simple, robust and presents low operation costs was developed. This modulator uses compressed air to cool two small portions of the second chromatographic column of a GC×GC system. ...
Avaliação da técnica de extração de SPE e GC-(EI)-MS/MS na análise de agrotóxicos em água de lavoura de arroz irrigado
(Universidade Federal de Santa Maria, 2012-02-14)
It is known that heavy use of pesticides, especially herbicides and
insecticides, associated with the improper management of irrigation water
can result in pesticide runoff out the crops to the waters streams, rivers ...
Agrotóxicos em milho: otimização e validação de método multirresíduo empregando GC-MS/MS
(Universidade Federal de Santa Maria, 2013-02-28)
Due to the complexity of its matrix, more efficient methods have been studied
for the determination of pesticide residues in maize. The use of QuEChERS method
coupled to low temperature clean up technique has showed ...