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Interações intermoleculares e topologia molecular no empacotamento cristalino de 3-amino-4-halo-5-metilisoxazóis
(Universidade Federal de Santa Maria, 2013-02-26)
In this work is described the intermolecular interactions and the molecular
topology present in the crystal packing of 3-amine-4-halo-5-methylisoxazoles. First
was described the obtention of the 3-amine-4-halo-5-methylisoxazoles ...
Determinação de disruptores endócrinos em filé de peixe utilizando QuEChERS modificado e GC-(TQ)MS/MS
(Universidade Federal de Santa Maria, 2012-02-27)
Endocrine Disrupter Compounds (EDCs) like pesticides, alkylphenols and hormones
among other classes of compounds are responsible for alterations in the endocrine
system functions. Endocrine disruption occurs when EDCs ...
Investigação de equilíbrios através de potenciometria e voltametria com resolução multivariada de curvas
(Universidade Federal de Santa Maria, 2012-03-09)
The interaction between the amino acid glutathione (GSH) and zinc (II) and cadmium (II) ions was investigated using data obtained by potentiometric and voltammetric measurements. Solutions with ionic strength 0.1 M KCl ...
Determinação de boro em amostras de carbeto de silício utilizando piroidrólise e ICP-OES
(Universidade Federal de Santa Maria, 2012-12-13)
In this work a procedure for boron determination in samples of silicon carbide by pyrohydrolysis and detection by inductively coupled plasma optical emission spectrometry was developed. The silicon carbide samples were ...
Síntese de Pirimidinas derivadas de 7,7,7-trialo-4-metoxi-6-oxo-4- heptenoatos de metila e bi-heterociclos trifluormetilados
(Universidade Federal de Santa Maria, 2012-02-27)
An efficient method to obtain pyrimidinones and pyrimidines trialomethylated from the cyclocondensation reaction of compounds of methyl 7,7,7-trihalo-4-methoxy-6-oxoheptenoate
with urea and differents amidines providing ...
Determinação de halogênios por cromatografia de íons e ICP-MS em sulfato de bário após decomposição por piroidrólise
(Universidade Federal de Santa Maria, 2013-02-28)
In this work pyrohydrolysis is proposed as pretreatment of barium sulfate and subsequent determination of F, Cl, Br and I by ion chromatography (IC) and inductively coupled plasma mass spectrometry (ICP-MS). After the ...
Espécies de arsênio em moluscos bivalves determinadas por LC-ICP-MS E LC-CVG-ICP-MS após extração assistida por microondas
(Universidade Federal de Santa Maria, 2013-03-05)
In this work, the aim of this study is to evaluate sample preparation procedures and
liquid chromatography-inductively coupled plasma mass spectrometry (LC-ICP-MS) and LC
coupled to chemical vapor generation (CVG) and ...
Síntese de 4-trifluormetil-5-(propan-1-ol-3-il)-1H-piridin-2-iminas N-substituídas
(Universidade Federal de Santa Maria, 2013-03-08)
This work presents a simple and accessible synthetic route for the
preparation of a series, of nineteen new N-substituted 4-trifluormethyl-5-
(propan-1-ol-3-yl)-pyridin-2-(1H)-imines, obtained from the reaction between ...
Lixiviação convencional e lixiviação assistida por ultrassom de elementos terras raras a partir de fosfogesso
(Universidade Federal de Santa Maria, 2023-02-28)
Rare earth elements (REE) are a group of elements with very similar physical and chemical
properties. They include the 15 elements of the lanthanide series (La–Lu), Y, and Sc. The
need for these elements in different ...
Análise estrutural de quatro polímeros de coordenação de difenilfosfinatos de metais alcalinos e alcalinos terrosos
(Universidade Federal de Santa Maria, 2005-03-04)
Não foi possível inserir o abstract.