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Determinação de tiocompostos por voltametria e coulometria em matrizes salinas
(Universidade Federal de Santa Maria, 2006-08-11)
The Laboratory of Support to Hemodialysis Clinics (LACHEM) has been investigating for many years the behaviour of many species in saline matrices as hemodialysis salts. In this work, the determination of the five thiocompounds ...
Síntese de calcogeno eninos através da reação de wittig-horner
(Universidade Federal de Santa Maria, 2006-07-25)
Unable to insert abstract.
Síntese de compostos com potencial atividade biológica: 1,2,4- oxadiazóis derivados de L-aminoácidos, e de tio-, seleno- e teluronucleosídeos
(Universidade Federal de Santa Maria, 2006-12-15)
Unable to insert abstract.
Estudo da distribuição de selênio em animais experimentais em função da espécie de selênio ingerida e via de administração
(Universidade Federal de Santa Maria, 2006-12-21)
Selenium is an essential micronutrient that plays an important role in many physiological processes. Its clinical significance is related to the action of selenocompounds as adjuvant in
preventing diseases such as cancer ...
Síntese e cristaloquímica de complexos de Hg(II) e Ni(II) com o ligante 1,3-BIS(4-bromofenil)triazenido
(Universidade Federal de Santa Maria, 2006-03-01)
Deprotonated 1,3-Bis(4-bromophenyl)triazene reacts with Hg(CH3COO)2 in methanol yielding [Hg(BrC6H4NNNC6H4Br)2]∞ (1) a triazenide complex polymer of Hg(II). The crystal
structure of (1) reveals one-dimensional infinite ...
Determinação de espécies de arsênio por LC-ICP-MS
(Universidade Federal de Santa Maria, 2006-07-28)
The development of a method for As speciation in aqueous by-product of pyrolysis process of foliate bituminous is described in the present work. Arsenic species are separated by liquid chromatography (LC) coupled to ...
Síntese e análise estrutural de novos dihaloorganoteluratos(II) monoaniônicos.
(Universidade Federal de Santa Maria, 2006-02-17)
In this dissertation the synthesis and structural characterization of the new series of monoanionic dihaloorganyltellurates(II) compounds with a general formula (C5H6N)[mesTeX2] is presented. Dimesitylditelluride (mesTe)2 ...
Síntese de 2-amino(alcoxi)-5-trifluoracetil-1,2,3,4-tetraidropiridinas e oxazolo[3,2-a]piridinas
(Universidade Federal de Santa Maria, 2006-07-03)
The present work describes the synthesis of novel 2-alkoxy-5-trifluoroacetyl-1,2,3,4-tetrahydropyridines, 2-amino-5-trifluoroacetyl-1,2,3,4-tetrahydropyridines and oxazolo[3,2-a]pyridines from the cyclocondensation reactions ...
Síntese de 2-alquinil telurofenos via reação de sonogashira entre 2-halotelurofeno e 1-alcinos
(Universidade Federal de Santa Maria, 2006-05-29)
We present herein our results of the palladium-catalyzed cross-coupling of 2-halotellurophenes with several terminal alkynes to give acetylenic tellurophene
derivatives in excellent yields. Our initial efforts were devoted ...
Validação de métodos multirresíduos de extração e desenvolvimento de método de purificação por GPC para análise de resíduos de pesticidas em soja utilizandoGC-MS, GC-MS/MS e LC-MS/MS
(Universidade Federal de Santa Maria, 2006-03-01)
Due to the complexity of the soybean matrix and the very low pesticide concentrations expected for these samples, it is really necessary to develop efficient and reliable analytical methods to identify and quantify their ...