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Compostos de coordenação contendo o ligante 3-amino-2-((piridin-2-ilmetil)selanil)piridina: análise estrutural e atividade antibacteriana
(Universidade Federal de Santa Maria, 2021-03-03)
This work describes the synthesis, structural characterization, and antibacterial evaluation of eight new coordination compounds (1-8), derived from CuI, CuII, CoII, and ZnII, with 3-amine-2-((pyridin-2-ylmethyl)selanyl)pyridine ...
Desenvolvimento de métodos analíticos e estudo de interferências para a determinação de elementos Terras Raras em sangue por ICP-MS
(Universidade Federal de Santa Maria, 2021-07-31)
In this work five analytical methods were investigated for rare earth elements determination (REE) in
blood by inductively coupled plasma mass spectrometry (ICP-MS): i) Electrothermal vaporization and
inductively coupled ...
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 ...
Síntese, caracterização e agregação de líquidos iônicos mono- e dicatiônicos derivados de aminoácidos
(Universidade Federal de Santa Maria, 2020-02-20)
This study presents the synthesis and characterization of mono and dicationic ionic liquids (ILs), with anions derived from amino acids (Arginine, Glycine, Lysine and Serine). The influence of the molecular structure of ...
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 ...
Mosaicos de cargas elétricas e grandes gradientes de potencial em superfícies dielétricas formados pela evaporação de líquidos
(Universidade Federal de Santa Maria, 2020-03-06)
This work presents a study on the charge transfer of the automatic micropipette and the glass microsyringe with the grounded and ungrounded metallic part when dripping with different liquids and also when applying different ...
Síntese de 1-(selenobutil)-2-fenil-4h-selenofeno[2,3-c]cromenos via reação de ciclização cascata mediada por FeCl3
(Universidade Federal de Santa Maria, 2020-02-21)
The synthesis of heterocyclic compounds is of great importance within the
chemistry of materials and the biological area, targeting both the chemical industry and
the pharmaceutical industry. Among the different heteroatoms ...
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 ...
Síntese de α-metileno-β-lactamas via ciclização intramolecular de n-propiolamidas catalisada por t-BuOK e sua funcionalização via arilação de Heck catalisada por paládio
(Universidade Federal de Santa Maria, 2021-04-30)
The present work describes the regio- and stereoselective synthesis of α-methylene-β-lactams through intramolecular cyclization of different N-propiolamides catalyzed by potassium tert-butoxide. The same, in catalytic ...
Determinação de As, Cd, Hg E Pb em mel empregando combustão iniciada por micro-ondas e ICP-MS
(Universidade Federal de Santa Maria, 2020-03-19)
In this work, a microwave-induced combustion (MIC) method was proposed for the decomposition of honey, aiming at As, Cd, Hg and Pb determination by ICP-MS. Parameters such as sample mass (with or without the use of combustion ...