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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 ...
Síntese, análise cristalográfica e atividade biológica de complexos com ligantes triazenidos com fragmentos orto-halofenila e para-sulfonamidafenila
(Universidade Federal de Santa Maria, 2013-03-08)
This study shows the triazenes ligands and complexes Pd(II), K+ and Au(I) obtained from reactions of the ligands with fragments para-sulfonamidephenyl, comprising triazene ligand 1,3-bis (4 - sulfonamidephenyl) (1) and the ...
Novos Espirocromenil-Trifluoretanonas a partir de Reações de Trifluoracetilação de Adutos de Kabbe e seus Espiro[diidrocromeno-cicloalcan]pirazóis e Isoxazóis Derivados
(Universidade Federal de Santa Maria, 2013-12-03)
This work describes firstly an efficient and regioselective method for the synthesis of a new series of 2,2,2-trifluoro-1-[4-methoxy-spiro(2H-chromen-2,1 -cycloalkan)-3-yl]ethanones from the Kabbe adducts (spiro[chroman-2,1 ...
Parabenos em efluente hospitalar: quantificação e identificação de metabólitos e subprodutos de oxidação avançada
(Universidade Federal de Santa Maria, 2013-03-22)
In this study, it was developed an analytical methodology for the quantification of parabens (PBs) in hospital effluent (University Hospital of Santa Maria - HUSM), by using solid phase extraction (SPE) followed by liquid ...
Alcalóides ciclopeptídicos da espécie Discaria americana gilles and hooker: estereoquímica e atividade antimicrobiana
(Universidade Federal de Santa Maria, 2013-08-02)
The purpose of this study was to conduct a phytochemical study of the crude extract of the root bark of the species Discaria americana Gilles and Hooker. The origin of this knowledge has been proposed the use of this plant ...
Carbociclização de derivados de 2-imino éteres fenil propargílicos promovida por T-Buok: síntese de (e)-3-N- terc-butilamino-2-alquenilbenzofuranos
(Universidade Federal de Santa Maria, 2013-08-05)
Não foi possível inserir o abstract.
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II)
(Universidade Federal de Santa Maria, 2013-08-30)
In this study eight novel compounds were synthesized and characterized from pre-ligands pheylseleninic acid 1, 4-t-butiphenyilseleninic acid 2, 4-methylphenyilseninic acid 3 and 4-clorophenylseleninic acid 4. The ability ...
Desenvolvimento e validação de métodos voltamétricos sequenciais para a determinação de elementos em matrizes complexas
(Universidade Federal de Santa Maria, 2013-08-07)
Toxic elements are in continuous accumulation in the environment mainly due to anthropogenic activities. In this work, a voltammetric method of sequential analysis for application in matrices of complex characteristics was ...
Síntese e caracterização de complexos de Cu(I), Cu(II) E Au(I) com ligantes triazenidos contendo substituintes triazóis
(Universidade Federal de Santa Maria, 2013-11-29)
Triazenido ions are isoelectronic to amidinato anions,[R'N C(R)=NR']- and have a broad versatility in coordination chemistry. Metal complexes including triazenido ligands find applications in various areas of chemistry. ...
Emprego DAETV-ICP OES para a determinação de impurezas inorgânicas em produtos farmacêuticos
(Universidade Federal de Santa Maria, 2013-03-01)
In this study a method for As, Cd, Cr, Cu, Mn, Mo, Ni, Pb, Pd, Pt, Rh, Ru and V determination in pharmaceuticals products by electrothermal vaporization inductively coupled plasma optical emission spectrometry (ETV-ICP ...