Search Results - "dos Santos Madureira, Luiz Augusto"
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Dispersive Pipette Extraction and HPLC-DAD for the Determination of Polyphenols in Grape Juice
Published in Food analytical methods (01-02-2024)“…A simple and green sample preparation protocol using dispersive pipette extraction (DPX) followed by identification and quantification by high-performance…”
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2
Speciation of butyltin derivatives in surface sediments of three southern Brazilian harbors
Published in Journal of hazardous materials (15-09-2010)“…For the first time, organotin compounds were determined in surface sediment samples collected from São Francisco do Sul, Itajaí-Navegantes and Imbituba…”
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3
Current materials applied in analytical extraction techniques for the determination of bioactive compounds and chemical contaminants in wine: Recent advances and future trends
Published in TrAC, Trends in analytical chemistry (Regular ed.) (01-12-2024)“…Wine is a globally appreciated beverage with a remarkably complex chemical composition, including sugars, organic acids, minerals, aromatic compounds, and…”
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4
Low-alcohol wine made from uvaia (Eugenia pyriformis Cambess): Influence of ultrasound-assisted enzymatic pre-treatment on its bioactive properties
Published in Microchemical journal (01-03-2024)“…[Display omitted] •Low-alcohol uvaia wines were elaborated with four different treatments.•Ultrasound-assisted enzymatic treatment resulted in the highest…”
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5
Analytical evaluation of the protection offered by sealed tractor cabins during crop pulverization with fenitrothion
Published in Environmental monitoring and assessment (01-12-2016)“…The practice of large-scale agriculture requires the use of pesticides in order to maximize production. This activity has gained increasing attention in recent…”
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6
Application of Solid Phase Microextraction and Gas Chromatography for the Determination of BTEX in Solid Petroleum Residues
Published in Journal of the Brazilian Chemical Society (01-09-2013)“…This work describes a simple and fast method for the determination of BTEX (benzene, toluene, ethylbenzene and xylene) in solid waste and solutions obtained…”
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7
Fatty acid biomarkers in sediment samples via ultra-high resolution and accuracy time-of-flight mass spectrometry
Published in Organic geochemistry (01-02-2016)“…[Display omitted] •ESI(−)-UHR TOF-MS was tested as a new protocol for direct screening of fatty acids.•ESI(−)-UHR TOF-MS reduces both sample preparation time…”
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Evaluation of the organic matter sources using the δ13C composition of individual n-alkanes in sediments from Brazilian estuarine systems by GC/C/IRMS
Published in Estuarine, coastal and shelf science (01-12-2012)“…The δ13C composition of individual n-alkanes (from C16 to C34) was measured from surface sediments of five Brazilian estuarine systems affected by different…”
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9
Arqueologia biomolecular: passos preliminares para interpretações sobre a origem dos resíduos orgânicos preservados em fragmentos de cerâmica pré-colonial no Brasil
Published in Química nova (01-06-2006)“…Organic residue analysis of archaeological potsherds is a well-established method for determining the uses of European and North American pottery vessels. In…”
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10
An analytical approach to determine the health benefits and health risks of consuming berry juices
Published in Food chemistry (30-01-2024)Get full text
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11
A green analytical method for the determination of polyphenols in wine by dispersive pipette extraction and LC-MS/MS
Published in Food chemistry (30-03-2023)“…[Display omitted] •A method for the determination of polyphenols in wines.•Sample preparation with only 200 µL of organic solvents.•Sample preparation spending…”
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12
Aliphatic and polycyclic aromatic hydrocarbons in surface sediments collected from mangroves with different levels of urbanization in southern Brazil
Published in Marine pollution bulletin (15-06-2017)“…Three mangroves located in southern Brazil, Carijós (CA), Rio Tavares (RT) and Itacorubi (ITA), with distinct anthropogenic influences, were assessed with…”
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How pesticides affect neonates? - Exposure, health implications and determination of metabolites
Published in The Science of the total environment (15-01-2023)“…This review covers key information related to the effects of pesticides on fetal and child health. All humans are exposed to environmental toxicants, however…”
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14
Development of hollow fiber-membrane microporous liquid–liquid extraction (HF-MMLLE) procedure based on palladium nanoparticles for determination of PAH in leached extracts
Published in Microchemical journal (01-10-2021)“…[Display omitted] •A new method was developed to determination 16 PAH in aqueous samples.•Palladium nanoparticles were synthesized and incorporated into…”
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15
Solvent‐free method for the determination of lignin‐derived phenols in sediments
Published in Journal of separation science (01-05-2017)“…A solvent‐free method that uses headspace solid‐phase microextraction and gas chromatography with flame ionization detection is proposed for the determination…”
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Green extraction of phenolic compounds from the by-product of purple araçá (Psidium myrtoides) with natural deep eutectic solvents assisted by ultrasound: Optimization, comparison, and bioactivity
Published in Food research international (01-09-2024)“…[Display omitted] •NADES was effective in extracting phenolics from purple araçá byproducts.•Extraction with NADES quantified p-anisic and methoxycinnamic…”
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17
Minor γ-Lactones from Trichilia Catigua (Meliaceae) and its precursors by GC-MS
Published in Natural product research (01-10-2004)“…NMR and GC-MS analysis of fractions of the CHCl 3 extract of Trichilia catigua bark led to the identification of a mixture of three ω-phenyl alkanes, three…”
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18
Lipídios em sedimentos arqueológicos: resultados preliminares do sítio arqueológico Rio do Meio, Ilha de Santa Catarina (SC)
Published in Revista brasileira de ciência do solo (2008)“…Este trabalho foi realizado com o objetivo de avaliar a distribuição de lipídios em sedimentos arqueológicos do sítio Rio do Meio, Ilha de Santa Catarina. Nos…”
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Valorization of biowastes from sustainable viticulture with bioactive potential: application in functional yogurt
Published in Journal of food science and technology (01-12-2022)“…Seed and peel flours of organic Bordeaux grapes ( Vitis labrusca L. ), containing phenolics and antioxidant capacity, influenced both the composition and…”
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Univariate statistical analysis of gas chromatography – mass spectrometry fingerprints analyses
Published in Chemical Data Collections (01-06-2021)“…Gas Chromatography - Mass Spectrometry (GC–MS) has been used for a long time in fingerprint analysis. We present a workflow of univariate statistical treatment…”
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