Identificação de adulteração de biocombustível por adição de óleo residual ao diesel por espectrofluorimetria total 3D e análise das componentes principais

Meira, Marilena; Quintella, Cristina M.; Ferrer, Tiago Mendes; Silva, Humbervânia Reis Gonçalves da; Guimarães, Alexandre Kamei; Santos, Mariana Andrade; Neto, Pedro Ramos da Costa; Pepe, I. M.

doi:10.1590/s0100-40422011000400013

Cited by 18 publications

(9 citation statements)

References 12 publications

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“…(Na Zhou et al, 2009;Cai, Zhu, Zhang, 2008). No caso específico dos HPAs, para iniciar o processo de transição eletrônica é necessário que estas moléculas recebam energia com comprimentos de onda correspondente a região do ultravioleta (Patra, 2001;Meira et al, 2011). Levando em consideração esses aspectos, este estudo tem o intuito de demonstrar a viabilidade da técnica como uma ferramenta para monitoramento ambiental, especificamente na detecção de HPAs em ambientes aquáticos.…”

Section: Introductionunclassified

A Espectroscopia De Fluorescência Sincronizada Aplicada Na Análise Qualitativa E Quantitativa De Hidrocarbonetos Policíclicos Aromáticos Em Amostras D’água

Rodrigues

Salmazzo

Capato

et al. 2014

CeN

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Os Hidrocarbonetos Policíclicos Aromáticos (HPAs) são conhecidos por serem altamente tóxicos. Diferentes métodos são utilizados para identificação destes compostos em amostras ambientais, entretanto, quase sempre, envolvem alta complexidade para as análises e custos significativamente altos. Contudo a técnica de Espectroscopia de Fluorescência Sincronizada (EFS) se mostra altamente simples e eficaz no processo de identificação destas substâncias. Neste contexto, o trabalho objetivou realizar um estudo quali-quantitativo de HPAs presentes em matrizes aquosas no intuito de propor a técnica de EFS como uma ferramenta para o monitoramento ambiental. Após as análises estatísticas verificou-se que o limite de detecção foi abaixo de 0,7x10-9 g.mL-1 para os oito HPAs identificados pela técnica de EFS, valor este recomendado pelo Ministério da Saúde no Brasil, demonstrando que a técnica é altamente sensível e aplicável a rotina de analises em amostras de água.

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Section: Introductionunclassified

A Espectroscopia De Fluorescência Sincronizada Aplicada Na Análise Qualitativa E Quantitativa De Hidrocarbonetos Policíclicos Aromáticos Em Amostras D’água

Rodrigues

Salmazzo

Capato

et al. 2014

CeN

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“…Also we reported a method for identification of the adulteration to diesel by the addition of residual cooking oil using spectrofluorimetry total 3D and PCA (Meira et al, 2011) and a spectrofluorimeter was patented (Quintella et al, 2011). This present study focuses on the quantification of adulterants added to diesel (kerosene, turpentine and residual oil from fried foods) by high-power light-emitting diode (LED) spectroluorimetry and partial least squares (PLS) regression.…”

Section: Introductionmentioning

confidence: 99%

Determination of Adulterants in Diesel by Multivariate Calibration Associated With LED Spectrofluorimetry

Meira

Quintella

Ribeiro

et al. 2014

IJC

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In this paper, multivariate calibration models have been developed for determination of common adulterants (kerosene, turpentine and residual oil from fried foods) added to diesel. The samples were analyzed by LED spectrofluorimetry and the multivariate calibration models were developed by Partial Least Squares (PLS). The proposal is suggested as an analytical methodology of low-cost, fast and non-destructive able to quantify the presence of contaminants in the diesel. The results showed that adulterants concentrations were adequately reproduced by the fluorescence spectral data.

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“…However, adulteration to diesel through the addition of oil and grease waste resulting from frying (nontransesterified) instead of biodiesel is one of the possible adulterations [1,2]. Therefore, it is necessary to develop or improve methods to determine the adulteration to diesel or its blends with biodiesel that provide rapid and accurate results at a low cost.…”

Section: Introductionmentioning

confidence: 99%

“…In a previous work, we developed a method and a sensor device for monitoring quality in the processes of obtaining fuels using spectrofluorimetry total 3D and principal components analysis [9]. A method for identifying the adulteration of biodiesel by the addition of residual oil to diesel by spectrofluorimetry total 3D and PCA and a spectrofluorimeter was developed for this purpose [1,10]. This paper describes a methodology for determining the adulteration to diesel by the addition of residual oil by fitting a Gaussian to the fluorescence spectra of standards of residual oil into diesel.…”

Section: Introductionmentioning

confidence: 99%

Gaussian fit to the fluorescence spectra for determination of adulteration to diesel by addition of residual oil

Meira

Quintella

Ribeiro

et al. 2014

Biomass Conv. Bioref.

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This paper describes a methodology for determining non-transesterified residual cooking oil content in aromatic diesel. The procedure consists in fitting multiple Gaussian to the fluorescence spectra of standards and following construction of a graph using as x-axis the values of the concentrations of the standards in the range of 0 to 45 % and as y-axis the values of the area of the Gaussian centered around 513-540 nm. A straight line was obtained rising with R 2 of 0.9837 to the curve of areas of Gaussian×concentration of residual oil in diesel. The results indicate a possibility for development of a sensor device for determining non-transesterified residual cooking oil content in diesel.

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Identificação de adulteração de biocombustível por adição de óleo residual ao diesel por espectrofluorimetria total 3D e análise das componentes principais

Cited by 18 publications

References 12 publications

A Espectroscopia De Fluorescência Sincronizada Aplicada Na Análise Qualitativa E Quantitativa De Hidrocarbonetos Policíclicos Aromáticos Em Amostras D’água

A Espectroscopia De Fluorescência Sincronizada Aplicada Na Análise Qualitativa E Quantitativa De Hidrocarbonetos Policíclicos Aromáticos Em Amostras D’água

Determination of Adulterants in Diesel by Multivariate Calibration Associated With LED Spectrofluorimetry

Gaussian fit to the fluorescence spectra for determination of adulteration to diesel by addition of residual oil

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