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Reatores de discos rotativos e tubular helicoidal na degradação fotocatalítica de diclofenaco e carga orgânica de efluente hospitalar
(Universidade Federal de Santa Maria, 2009-07-28)
In this study, the advanced oxidation process heterogeneous photocatalysis were used for the degradation of diclofenac and decrease of the organic load in the effluent from the emergency sector (PA) of the University ...
Determinação de cloridrato de propranolol em medicamentos por espectroscopia no infravermelho com calibração multivariada (PLS)
(Universidade Federal de Santa Maria, 2005-07-21)
In this work calibration multivariate models were developed with the use of the technique of partial least scores (PLS) for the dosage of tablets of propranolol hydrochloride using infrared spectroscopy. Samples were ground ...
Determinação de elementos traço em solo por ICP-MS após volatilização empregando combustão iniciada por micro-ondas
(Universidade Federal de Santa Maria, 2011-03-22)
In this work the microwave-induced combustion (MIC) method was proposed for the decomposition of soil samples and subsequent determination of As, Bi, Cd, Hg, Pb and Se by inductively coupled plasma mass spectrometry (ICP-MS). ...
Método multirresíduo para determinação de micotoxinas em vinho por UPLC-MS/MS
(Universidade Federal de Santa Maria, 2013-01-08)
A fast multimethod using liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was implemented and optimized to yield a complete determination of 36 mycotoxins in wine samples. Extraction was performed with acetonitrile, ...
Determinação de enxofre em amostras de grafite flexível por ICP OES utilizando piroidrólise como preparo de amostra
(Universidade Federal de Santa Maria, 2013-07-16)
The flexible graphite is a material produced from the intercalation, exfoliation
and compression of graphite. Due to its low porosity, high chemical and thermal
resistance, the flexible graphite is used in many different ...
Avaliação de fotorreatores na degradação de corantes reativos e efluente têxtil
(Universidade Federal de Santa Maria, 2004-02-27)
The continuous search for better quality of life, nowadays, implies in industrial growth e, consequently, in greater or minor degree of environmental pollution. The textile industry is responsible for part of this pollution; ...
Desenvolvimento de metodologia para a determinação de contaminantes inorgânicos em polímeros por LA-ICP-MS
(Universidade Federal de Santa Maria, 2016-02-23)
In the present work a new calibration strategy was evaluated for further determination of As, Ba, Cd, Cr, Pb, Sr and Zn in food packaging by laser ablation and inductively coupled plasma mass spectrometry (LA-ICP-MS). The ...
Determinação de halogênios em mel após decomposição com peróxido de hidrogênio usando sistema de alta pressão
(Universidade Federal de Santa Maria, 2016-02-12)
In this work the sample preparation method for honey decomposition using H2O2 in alkaline medium at high pressure system for further determination of F, Cl, Br and I was evaluated. In this way, some parameters such as ...
Determinação de Ca, K, Mg e Na em petróleo utilizando amostragem direta e espectrometria de absorção atômica com forno de grafite
(Universidade Federal de Santa Maria, 2015-07-27)
Crude oil is a complex matrix and with variable chemical composition, and the determination of trace elements in this sample is not an easy task. The presence of some metals can result in problems during transportation and ...
Determinação de elementos traços em poli-imida de alta pureza por amostragem de sólidos e espectrometria de absorção atômica com forno de grafite
(Universidade Federal de Santa Maria, 2015-07-20)
Polyimides are widely used in the industry for manufacture of crystal liquid
displays, dielectric materials, and also for, aerospace applications, among others.
Due to the several possibilities of application of polyimide, ...