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Itens para a visualização no momento 11-20 of 32
Investigação das propriedades fotofísicas de porfirinas meso substituídas com complexos de RuII e estudo da interação com biomoléculas
(Universidade Federal de Santa Maria, 2019-08-05)
The objective of this work was to investigate the photophysical properties of two porphyrins whose syntheses are already reported in the literature: meso-tetra(4-pyridyl)porphyrin tetra-ruthenated free-base (H2RuTPyP) and ...
Determinação multirresíduo de agrotóxicos em noz-pecã empregando método QuEChERS modificado e LC-MS/MS
(Universidade Federal de Santa Maria, 2019-08-09)
Pecan nuts is one of the few native nuts species from the American continent. The area in southern Brazil dedicated to pecan production is directly linked to the favorable climate of this region. Considering the commercialization ...
Determinação de resíduos de agrotóxicos em uva empregando método QuEChERS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-28)
Grapes, classified as fruits play important role in human diet and nutrition. They are
sources of vitamins, polyphenols, essential amino acids, and a wide range of health
benefits. Grapes are extremely rich in pigments, ...
Desenvolvimento de método para a determinação de metais no sangue e sua correlação com a leucemia linfocítica aguda
(Universidade Federal de Santa Maria, 2019-04-26)
Acute lymphocytic leukemia (ALL) is characterized as a hematological disease that originates during the development of young white blood cells, called lymphocytes. Although it is the type of cancer with the highest number ...
Investigação da adequabilidade da cromatografia de íons para a determinação de espécies de halogênios em saliva
(Universidade Federal de Santa Maria, 2019-08-15)
In this work, ion chromatography was investigated for halogens speciation analysis in
human saliva. Initially, it was used an isocratic ion chromatography system (“IC 1
System”), being evaluated: the chromatographic ...
Determinação de resíduos de herbicidas em diferentes variedades de arroz (branco, preto e vermelho) empregando método QuEChERS e LC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-28)
Rice is the main component of the basic diet of the world population. This food is of utmost importance for world food security. Therefore, aspects related to its production and consumption must be continuously monitored ...
Determinação de resíduos de agrotóxicos em leite em pó empregando dispersão da matriz em fase sólida, GC-MS/MS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-07-31)
The milk powder is a food of complex composition (protein, fat, carbohydrate, vitamins,
etc.). It plays a fundamental role in child nutrition due to nutritional factors related to
cognitive ability. In recent years, ...
Desenvolvimento de método para remoção de água, sal e sedimento de petróleos do pré-sal empregando radiação micro- ondas
(Universidade Federal de Santa Maria, 2019-03-27)
In this work was developed a method for removal of water, salt and sediment of pre-
salt crude-oil employing microwave radiation in close system, it was used oil in water
emulsions with intermediated crude oils (26,7 ...
Processo de nanoemulsificação de óleos essenciais assistido por ultrassom
(Universidade Federal de Santa Maria, 2019-03-26)
Essential oils are volatile oils obtained from plants by physico-chemical extraction
processes. To overcome the hydrophobicity of essential oils, and allows their
dispersion in an unfavorable environment, many researchers ...
Validação de método multirresídual e monitoramento de resíduos de agrotóxicos por GC-μECD em méis do estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2019-03-12)
Due to the complexity of matrices such as honey and the low concentrations of pesticides,
there is a great need for the development of efficient and reliable analytical methods for the
identification and quantification ...