H
Haroldo Silveira Dórea
Researcher at Universidade Federal de Sergipe
Publications - 28
Citations - 817
Haroldo Silveira Dórea is an academic researcher from Universidade Federal de Sergipe. The author has contributed to research in topics: Gas chromatography & Matrix (chemical analysis). The author has an hindex of 17, co-authored 28 publications receiving 746 citations. Previous affiliations of Haroldo Silveira Dórea include University of São Paulo.
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Journal ArticleDOI
Analysis of BTEX, PAHs and metals in the oilfield produced water in the State of Sergipe, Brazil
Haroldo Silveira Dórea,José Ricardo Lima Bispo,Kennedy Alexandre Souza Aragão,Bruno B. Cunha,Sandro Navickiene,José do Patrocínio Hora Alves,Luciane P. C. Romão,Carlos Alexandre Borges Garcia +7 more
TL;DR: In this paper, a study was carried out to evaluate preliminarily the BTEX, polycyclic aromatic hydrocarbons (PAHs), and metals contents in produced water samples taken from effluents of the Bonsucesso treatment plant located in the city of Carmopolis, North-east of Brazil.
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The structure of the benthic macrofaunal assemblages and sediments characteristics of the Paraguaçu estuarine system, NE, Brazil
Francisco Barros,Vanessa Hatje,Maria Betânia Figueiredo,Wagner F. Magalhães,Haroldo Silveira Dórea,Elissandro Soares Emídio +5 more
TL;DR: The structure of the benthic macrofaunal assemblages of the estuarine portion of Paraguacu River, NE, Brazil, and its relationship with surface sediment characteristics (trace metals, PAHs, nutrients and grain size) and physical variables were investigated at ten stations on two contrasting occasions, summer (dry season) and winter (rainy season) as discussed by the authors.
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Validation of an analytical method for analysis of cannabinoids in hair by headspace solid-phase microextraction and gas chromatography-ion trap tandem mass spectrometry.
TL;DR: The optimized SPME method was applied in analysis of hair samples from Cannabis drug users, showing that CBN and CBD were present in all samples analyzed.
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Simultaneous determination of eight pesticide residues in coconut using MSPD and GC/MS.
TL;DR: A simple and effective extraction method based on matrix solid-phase dispersion (MSPD) was developed to determine dimethoate, malathion, lufenuron, carbofuran, 3-hydroxycarb ofuran, thiabendazole, difenoconazole and trichlorfon in coconut pulp using gas chromatography-mass spectrometry with selected ion monitoring (GC/MS, SIM).
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Multivariate optimization of a solid phase microextraction-headspace procedure for the determination of benzene, toluene, ethylbenzene and xylenes in effluent samples from a waste treatment plant.
Alain Gaujac,Elissandro Soares Emídio,Sandro Navickiene,Sergio Luis Costa Ferreira,Haroldo Silveira Dórea +4 more
TL;DR: A method based on solid-phase microextraction (SPME) and gas chromatography with flame ionization detection (GC-FID) has been optimized for the determination of benzene, toluene, ethylbenzene and xylenes (BTEX) in water released from a waste treatment plant.