Search Results - "Bortoluzzi, Janaína"
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1
Development of a fast GC-response factor method to quantify total FAMEs in biodiesel from various fatty acid sources
Published in Renewable energy (01-01-2024)Get full text
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2
Studies on Inter- and Transesterification: Different Oils with the Same Fatty Acid Composition and Their Reaction Behaviors
Published in Energy & fuels (21-05-2020)“…In this work, studies of the transesterification using sodium hydroxide as a catalyst of mixtures of soybean oil/coconut oil (SO/CNO) and soybean oil/castor…”
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3
Photocatalytic Glycerol Conversion and Rhodamine B Degradation: Influence of TiO2 Properties by Transformation of Anatase and Rutile Phases
Published in Water, air, and soil pollution (01-06-2023)“…TiO 2 was synthesized by precipitation method at different calcination temperatures and characterized. Materials exhibiting diverse surface, structural and…”
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4
Cardioprotective effects induced by hydroalcoholic extract of leaves of Alpinia zerumbet on myocardial infarction in rats
Published in Journal of ethnopharmacology (05-10-2019)“…The leaves of Alpinia zerumbet is used in folk medicine in Brazil to treat hypertension. However, the cardioprotective effect of this plant has not been…”
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5
Evaluation of Esterification of Oleic Acid and Glycerol in the Presence of Organotin(IV) Compounds
Published in European journal of lipid science and technology (01-06-2019)“…Esterification of oleic acid (OA) and glycerol (GLY) is studied in the absence and in the presence of the organotin(IV) catalysts (CAT) dibutyltin dichloride…”
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6
Atomic Absorption Spectrometry as an Alternative to Determine the Presence of Gold Nanoparticles on or in Silica Matrix
Published in Journal of the Brazilian Chemical Society (01-04-2022)“…Two different gold-silica-based nanomaterials were prepared: (i) silica-supported gold nanoparticles (AuNP/SiO2); and (ii) gold-silica core-shell nanoparticles…”
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7
Investigation of glycerol acetylation in the presence of Sb catalysts
Published in Biomass conversion and biorefinery (01-02-2023)“…In this study, antimony complexes (SbCl 5 and SbCl 3 ) were investigated as catalysts in glycerol (GLY) esterification with acetic acid (AA), compared to Sb 2…”
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Determination of Alkyl Esters Content by Gas Chromatography: Validation of Method Based on Short Column and Response Factor
Published in Journal of the Brazilian Chemical Society (01-06-2018)“…In this study an analytical method, based on gas chromatography with flame ionization detection, using a short column and response factor (GCSCRF), was…”
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Evaluation of Proton Nuclear Magnetic Resonance Spectroscopy for Determining the Yield of Fatty Acid Ethyl Esters Obtained by Transesterification
Published in Energy & fuels (19-11-2015)“…This study systematically evaluates the use of proton nuclear magnetic resonance (1H NMR) spectroscopy for determining the composition of soybean oil ethyl…”
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10
IMPROVEMENT OF AN ANALYTICAL METHOD BASED ON HPLC WITH REFRACTIVE INDEX DETECTION FOR THE ANALYSIS OF GLYCEROL OXIDATION PRODUCTS
Published in Química Nova (01-08-2019)“…The optimized analytical methodology described herein is based on an ion exchange column and an H3PO4 solution (pH 2.24) as the mobile phase, with a flow rate…”
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11
Investigation of Sn(IV) catalysts in glycerol acetylation
Published in Molecular catalysis (01-10-2020)“…[Display omitted] •Sn(IV) catalysts were investigated in the acetylation of glycerol (GLY).•Catalysts bearing chlorine substituents provided the best…”
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12
Synthesis and evaluation of the anti-nociceptive and anti-inflammatory activity of 4-aminoquinoline derivatives
Published in Bioorganic & medicinal chemistry (01-08-2015)“…Mono and bisquinoline derivatives with anti-nociceptive and anti-inflammatory activities and low toxicity. [Display omitted] In this paper, we describe the…”
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13
Analysis of organic compounds of water-in-crude oil emulsions separated by microwave heating using comprehensive two-dimensional gas chromatography and time-of-flight mass spectrometry
Published in Journal of Chromatography A (03-04-2009)“…In this work the higher peak capacity and resolution of comprehensive two-dimensional gas chromatography (GC × GC) has been successfully applied, for the first…”
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Journal Article Conference Proceeding -
14
Influence of different alkyl and carboxylate substituents on Sn(IV) organometallic catalysts during fatty acid methyl ester production
Published in Catalysis communications (05-01-2015)“…Sn(IV) complexes (dimethyltin dineodecanoate (1), dibutyltin dineodecanoate (2), dioctyltin dineodecanoate (3), dimethyltin diundec-10-enoate (4), dibutyltin…”
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15
Uso da cromatografia gasosa bidimensional abrangente (GC×GC) na caracterização de misturas biodiesel/diesel: aplicação ao biodiesel de sebo bovino
Published in Química Nova (2011)“…The growth of biodiesel market and the implementation of regulations related to biodiesel production and biodiesel/diesel blending has encouraged the…”
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Photocatalytic Glycerol Conversion and Rhodamine B Degradation: Influence of TiO.sub.2 Properties by Transformation of Anatase and Rutile Phases
Published in Water, air, and soil pollution (01-06-2023)“…TiO.sub.2 was synthesized by precipitation method at different calcination temperatures and characterized. Materials exhibiting diverse surface, structural and…”
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17
Study of correlations between composition and physicochemical properties during methylic and ethylic biodiesel synthesis
Published in Industrial crops and products (01-01-2017)“…•Density and viscosity were determined for samples simulating process.•Correlations between physicochemical parameters and composition were established.•Wasted…”
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18
Solid phase microextraction to concentrate volatile products from thermal degradation of polymers
Published in Polymer degradation and stability (01-07-2005)“…Solid phase microextraction (SPME) was used to analyse the products evolved in the thermal degradation of polypropylene (PP) which was used as a model polymer…”
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Analysis of volatile compounds released from flowers and roots of Polygala cyparissias and Polygala paniculata by headspace/SPME
Published in The Journal of essential oil research (01-05-2009)“…Static headspace/SPME volatiles from flowers and roots of the two Polygala species were analyzed by GC/MS. Methyl salicylate (89.1% and 97.8%) was found as the…”
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20
Thermal immobilization of poly(butylacrylate) on glass-ceramic rod for preparation of solid phase microextraction fibers
Published in Mikrochimica acta (1966) (01-10-2006)“…The efficiency of a glass-ceramic rod as a base for the preparation of SPME fibers using thermal immobilization was investigated. Glass-ceramic and fused…”
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