Výsledky vyhledávání - "Morgana Frena"

A Green Procedure Using Disposable Pipette Extraction to Determine Polycyclic Aromatic Sulfur Heterocycles in Water Samples and Solid Petrochemical Residues

Autor: Hérica A. Magosso, Otávio R. Bittencourt, Morgana Frena, Luiz A. S. Madureira, Karine O. Garcia, Eduardo Carasek

Publikováno v: Journal of the Brazilian Chemical Society v.32 n.2 2021
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 32, Issue: 2, Pages: 277-286, Published: 01 FEB 2021

A simple and efficient method using reduced amounts of solvents for the determination of polycyclic aromatic sulfur heterocycles (PASHs) in aqueous matrices from a lagoon and leachate solid waste from a petrochemical industry is proposed. The target

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a624f3c6059f68524bf1eedfd8afb42b
https://doi.org/10.21577/0103-5053.20200178

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Assessment of polycyclic aromatic hydrocarbons in three environmental components from a tropical estuary in Northeast Brazil

Autor: Morgana Frena, Flaviana C. Damasceno, Laiane O. Carmo, Ewerton Santos, Michel R.R. Souza, Antônio Rodrigues Vilela Júnior, Jaiane S. Suzarte, Laiane S. Soares, Lukas G.G.V. Santos, Marcelo da Rosa Alexandre, Laiza Canielas Krause

Publikováno v: Marine pollution bulletin. 171

The evaluation of occurrence, risk quotient (RQ), bioaccumulation factor (BAF), and sources of PAH was conducted in Sergipe-Poxim estuarine system. PAH distribution that ranged from 7.1 to 30.9 ng L−1 (surface water, SW), 5.4 to 19.5 ng g−1 (sedi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dde43be5688a00da5f5ed361956f816
https://pubmed.ncbi.nlm.nih.gov/34343757

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Development of an eco-friendly method for the determination of total polychlorinated biphenyls in solid waste by gas chromatography-mass spectrometry

Autor: Luiz A. S. Madureira, Leila Dorácio Mendes, Milton Rosero-Moreano, Eduardo Carasek, Morgana Frena, Pablo Richter

Publikováno v: Journal of Environmental Chemical Engineering. 6:5042-5048

A simple and efficient solvent-free method for the quantification of total polychlorinated biphenyls (PCBs) in solid waste matrices by gas chromatography-mass spectrometry is proposed. Solid waste matrices spiked with Aroclor 1242 and Aroclor 1254 we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b41c6b6ca9f9bc68a359015464116ba0
https://doi.org/10.1016/j.jece.2018.07.037

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Polycyclic aromatic hydrocarbons (PAH) in superficial water from a tropical estuarine system: Distribution, seasonal variations, sources and ecological risk assessment

Autor: Marcelo R. Alexandre, Morgana Frena, Laiane S. Soares, Ewerton Santos, Antônio Rodrigues Vilela Júnior, Michel R.R. Souza

Publikováno v: Marine Pollution Bulletin. 127:352-358

This study aimed to evaluate the PAH distribution, sources, seasonal variations and ecological risk assessment in superficial water from the Japaratuba River, Brazil. PAH concentrations ranged from 4 to 119ngL-1. It was observed that the PAH total co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f909e665f2b958e59505dcd3e1696c7c
https://doi.org/10.1016/j.marpolbul.2017.12.014

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Solvent-free method for the determination of lignin-derived phenols in sediments

Autor: Luiz A. S. Madureira, Mayara Pinto, Morgana Frena

Publikováno v: Journal of Separation Science. 40:2002-2008

A solvent-free method that uses headspace solid-phase microextraction and gas chromatography with flame ionization detection is proposed for the determination of lignin-derived phenols in sediments. The extraction and derivatization conditions for th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e379c3fd2ccde360c71add8ed17afeff
https://doi.org/10.1002/jssc.201601405

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The impact of anthropogenic activity at the tropical Sergipe-Poxim estuarine system, Northeast Brazil: Fecal indicators

Autor: Antônio Rodrigues Vilela Júnior, Laiza Canielas Krause, Laiane O. Carmo, Laiane S. Soares, Lukas G.G.V. Santos, Morgana Frena, Yongsong Huang, Ewerton Santos, Marcelo R. Alexandre, Jaiane S. Suzarte, Michel R.R. Souza, Flaviana C. Damasceno

Publikováno v: Marine pollution bulletin. 154

The individual concentrations and sources of sterols in sediments samples collected in two periods 2017 (dry period /March and rainy period/August) were determined along with the Sergipe-Poxim estuarine system, Aracaju, Brazil. The individual sterols

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f129492e7533fa215de018244376d16
https://pubmed.ncbi.nlm.nih.gov/32319900

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Fatty acid biomarkers in sediment samples via ultra-high resolution and accuracy time-of-flight mass spectrometry

Autor: Márcia Caruso Bícego, Ana Cecília Rizzatti de Albergaria-Barbosa, Marcos N. Eberlin, Luiz A. S. Madureira, Rolf Roland Weber, Morgana Frena, Clécio F. Klitzke, Giovana A. Bataglion

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

This study proposes a new and fast protocol using ultra-high resolution (Rp of 100,000) and accuracy (⩽ 1 ppm) mass spectrometry in a “zig-zag” time-of-flight analyzer with electrospray ionization in the negative ion mode (ESI(−)-UHR TOF-MS)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37cc00b905be0d3f411e57fc6bb32b42
https://doi.org/10.1016/j.orggeochem.2015.12.002

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