MARYCEL ELENA BARBOZA COTRIM

MARYCEL ELENA BARBOZA COTRIM

(Fonte: Lattes)

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Bachelor's at Química from Faculdades Osvaldo Cruz (1985), master's at Tecnologia Nuclear from Instituto de Pesquisas Energeticas E Nucleares (1991) and doctorate at Tecnologia Nuclear from Instituto de Pesquisas Energeticas E Nucleares (2006). Has experience in Chemistry, focusing on Separation, acting on the following subjects: avaliação ambiental, metais, química ambiental, qualidade da água and química analítica. (Text obtained from the Currículo Lattes on November 17th 2021)

Mestrado em Tecnologia Nuclear pelo Instituto de Pesquisas Energéticas E Nucleares (1991) e Doutorado em Tecnologia Nuclear pelo Instituto de Pesquisas Energéticas E Nucleares (2006). Atualmente é pesquisador da Comissão Nacional de Energia Nuclear. Experiência em química analítica, atuando principalmente nos seguintes temas: avaliação ambiental, metais, química ambiental, qualidade da água e química analítica, caracterização de compostos de urânio e química analítica instrumental. (Texto extraído do Currículo Lattes em 17 nov. 2021)

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Improvements in metal exposure assays
2019 - BORDON, ISABELLA C.; CAMPOS, BRUNO G. de; GUSSO‑CHOUERI, PALOMA K.; MIYAI, CAIO A.; ARAUJO, GIULIANA S. de; EMERENCIANO, ANDREWS K.; SILVA, JOSE R.M.C. da; COTRIM, MARYCEL E.B.; FAVARO, DEBORAH I.T.; ABESSA, DENIS M. de S.
This technical note aims to report, in detail, the development, suitability and analytical validation of an artificial food to assess metal bioaccumulation in the blue crab Callinectes danae after metal exposure assays. For this purpose, lead (Pb) was chosen as the metal of interest. First, a non-contaminated artificial food was prepared by mixing commercial shrimps and agarose. The food was then offered on alternate days to two groups of crabs for 7 and 14 days, respectively. After confirming that this food was well-accepted by crabs, analytical procedures were performed to confirm that Pb added to the mixture would remain in the artificial food. For this purpose, two foods containing Pb at concentrations of 0.5 and 2.0 μg g− 1 were prepared by adding aliquots of an ultrapure Pb standard solution to the mixture. Samples of each food were subjected to an acid extraction and Pb concentrations were determined by a GF-AAS. Pb recoveries in both contaminated foods were > 90%. Subsequently, another experiment was performed, and two groups of crabs were fed with contaminated artificial foods (0.5 and 2.0 μg g− 1 of Pb) during 7 and 14 days, respectively. The observed acceptance of these foods by crabs at both Pb concentrations was of 100%.
Microplastics
2019 - BRIGGS, EXAMPLE; MOURA, ESPERIDIANA A.B. de; FURUSAWA, HELIO A.; COTRIM, MARYCEL E.B.; OGUZIE, EMEKA E.; LUGAO, ADEMAR B.
The geometric increase in the production and exploitation of plastics worldwide has several advantages as well as disadvantages due to the mismanagement of plastic waste. These waste products find its way into the aquatic body. Microplastics are plastic particles with its longest diameter less than or equal to 5 mm. Their microscopic nature, irregular color and morphology have made their extraction from the buoyant organic materials problematic. This work documents for the first time, the sampling and sample extraction of microplastics in Nigeria. An optimized sampling and sample extraction protocol for surfacewaterwas developed. The extraction protocolwas developed in a laboratory study using a simulated sample that mimics the environmental sample (microplastics+organic materials). A micronized LDPE (<300 μm) was used for the study and yielded a percentage recovery rate of 82%. The digested microplastics which were subjected to SEM analysis showed a slight change in the surface morphology. Thereafter, the environmental sample was extracted using the developed laboratory protocol and a high positive result was achieved. This protocol improved NOAA’s method of extraction by excluding the use of microscope for the final extraction, which, of course, will yield a biased result. This was achieved by the addition of ethanol to the final solution.
Relatório de avaliação do Programa de Monitoramento Ambiental (PMA-Q) atendendo aos Compostos Químicos Estáveis do IPEN – 2015
2017 - COTRIM, MARYCEL E.B.; PIRES, MARIA A.F.; MARTINS, ELAINE A.J.
Este relatório apresenta os resultados obtidos no desenvolvimento do PROGRAMA DE MONITORAMENTO QUÍMICO AMBIENTAL–PMA-Q dos Compostos Químicos Estáveis do Instituto de Pesquisas Energéticas e Nucleares – IPEN em 2015. Neste documento são apresentados e discutidos os resultados obtidos, em 2015, nos oito poços de monitoramento de água subterrânea, localizados nas instalações do IPEN, a partir de metodologias analíticas internacionalmente reconhecidas e discutidas com base nas legislações ambientais vigentes, emitidas por órgãos normativos e fiscalizadores, tais como Comissão Nacional de Energia Nuclear (CNEN), CETESB, Ministério do Meio Ambiente, por meio das resoluções CONAMA, além da solicitação do TAC (Termo de Ajuste de Conduta) do IBAMA. É apresentada também, uma avaliação temporal da qualidade química do efluente lançado pelo IPEN em rede coletora de esgoto, no ano de 2015, face aos valores estipulados nas legislações ambientais pertinentes.
Qualidade ecológica da Represa Guarapiranga: água e sedimentos superficiais: multitraçadores ambientais - metais, elementos-traço, interferentes endócrinos, HPAS e fármacos
2017 - COTRIM, MARYCEL E.B.; MARTINS, ELAINE A.J.; FURUSAWA, HELIO A.; SHIHOMATSU, HELENA M.; MONTEIRO, LUCILENA R.; LEBRE, DANIEL T.; OTOMO, JULIANA I.; SILVA, LARISSA L. da; ADAME, GISELE; BRITO, CARLOS F. de; PEREIRA, KAROLINE de P.; SILVA, JULIANA C. da; SILVA, DOUGLAS B. da; FAUSTINO, MAINARA G.; MARQUES, JOYCE R.; STELLATO, THAMIRIS B.; SILVA, TATIANE B. de S.C. da; PIRES, MARIA A.F.
Principais contaminantes na Represa Guarapiranga: condições pretéritas e recentes
2017 - PIRES, MARIA A.F.; MARTINS, ELAINE A.J.; MONTEIRO, LUCILENA R.; BRITO, CARLOS F. de; SILVA, DOUGLAS B. da; PEREIRA, KAROLINE de P.; SILVA, JULIANA C. da; MUCHON, GABRIELA; JESUS, TATIANE A. de; COTRIM, MARYCEL E.B.
A monitoring study for the impact evaluation of water treatment sludge discharge on Ribeira de Iguape River, Sao Paulo, Brazil
2004 - REIS, E.L.T.; COTRIM, M.; BELTRAME FILHO, O.; BADIRU, A.I.; PIRES, M.F.
Low-fluence COsub(2) laser irradiation decreases enamel solubility
2008 - ESTEVES OLIVEIRA, M.; APEL, C.; GUTKNECHT, N.; VELLOSO JUNIOR, W.F.; COTRIM, M.E.B.; EDUARDO, C.P.; ZEZELL, D.M.