Search Results - "Gontijo, Lucas Caixeta"

Rapid Discrimination Between Authentic and Adulterated Andiroba Oil Using FTIR-HATR Spectroscopy and Random Forest by de Santana, Felipe Bachion, Mazivila, Sarmento Júnior, Gontijo, Lucas Caixeta, Neto, Waldomiro Borges, Poppi, Ronei J.

“…Andiroba oil ( Carapa guianensis Aubl ) from the Amazonian region is one of the most important oils in popular medicine and cosmetic industry, has a high added…”
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Non-destructive fraud detection in rosehip oil by MIR spectroscopy and chemometrics by Santana, Felipe Bachion de, Gontijo, Lucas Caixeta, Mitsutake, Hery, Mazivila, Sarmento Júnior, Souza, Leticia Maria de, Borges Neto, Waldomiro

“…•Clear differences between authentic and adulterated rosehip oils in validation set.•100% correct classification was obtained for the training and validation…”
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Discrimination of the type of biodiesel/diesel blend (B5) using mid-infrared spectroscopy and PLS-DA by Mazivila, Sarmento Júnior, de Santana, Felipe Bachion, Mitsutake, Hery, Gontijo, Lucas Caixeta, Santos, Douglas Queiroz, Neto, Waldomiro Borges

“…•Classification of the type of biodiesel present in biodiesel/diesel blend is addressed.•PLS-DA is applied to MIR spectroscopy data.•Classification of PLS-DA…”
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Quantification of residual automotive lubricant oil as an adulterant in Brazilian S-10 diesel using MIR spectroscopy and PLS by de Souza, Leticia Maria, Mitsutake, Hery, Gontijo, Lucas Caixeta, Borges Neto, Waldomiro

“…•Quantification of residual automotive lubricant oil in diesel S-10 by HATR–MIR.•Models can be used to quantify residual lubricant oil adulteration in diesel…”
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Quantification of adulterations in extra virgin flaxseed oil using MIR and PLS by de Souza, Letícia Maria, de Santana, Felipe Bachion, Gontijo, Lucas Caixeta, Mazivila, Sarmento Júnior, Borges Neto, Waldomiro

“…•Proposed FTMIR–HATR method is a rapid and low-cost way to monitoring EFO quality.•PLS models can be used to quantify SO and SFO in EFO by FTMIR–HATR.•Models…”
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Quality Control of Biodiesel Content of B7 Blends of Methyl Jatropha and Methyl Crambe Biodiesels Using Mid-Infrared Spectroscopy and Multivariate Control Charts Based on Net Analyte Signal by Sitoe, Baltazar Vasco, Mitsutake, Hery, Guimarães, Eloiza, Gontijo, Lucas Caixeta, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…In this work, mid-infrared spectroscopy and multivariate control charts based on the net analyte signal (NAS) were applied for quality control of B7 (7%…”
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Monitoring of biodiesel content and adulterant presence in methyl and ethyl biodiesels of jatropha in blends with mineral diesel using MIR spectrometry and multivariate control charts by Sitoe, Baltazar Vasco, Máquina, Ademar Domingos Viagem, de Santana, Felipe Bachion, Gontijo, Lucas Caixeta, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…[Display omitted] •Monitoring the biodiesel quality.•Content and adulterants in biodiesel and biodiesel/diesel blends.•Multivariate control charts combined…”
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Fast Detection of Adulterants/Contaminants in Biodiesel/Diesel Blend (B5) Employing Mid-Infrared Spectroscopy and PLS-DA by Mazivila, Sarmento Júnior, Gontijo, Lucas Caixeta, Santana, Felipe Bachion de, Mitsutake, Hery, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…This work presents the potentiality of partial least squares discriminant analysis (PLS-DA) associated with mid-infrared spectroscopy to detect gasoline,…”
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Quantification of Jatropha methyl biodiesel in mixtures with diesel using mid-infrared spectrometry and interval variable selection methods by Sitoe, Baltazar Vasco, Máquina, Ademar Domingos Viagem, Gontijo, Lucas Caixeta, Oliveira, Lígia Rodrigues De, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…The use of mid-infrared spectrometry with horizontal attenuated total reflectance and Fourier transform, along with methods of variable selection by intervals,…”
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Infrared Spectroscopy and Multivariate Calibration for Quantification of Soybean Oil as Adulterant in Biodiesel Fuels by Guimarães, Eloiza, Mitsutake, Hery, Gontijo, Lucas Caixeta, de Santana, Felipe Bachion, Santos, Douglas Queiroz, Neto, Waldomiro Borges

“…This work quantifies the adulteration of ethyl and methyl soybean biodiesels/diesel (B5) blended with soybean oil using mid-infrared spectroscopy associated…”
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Quantification of soybean biodiesels in diesel blends according to ASTM E1655 using mid-infrared spectroscopy and multivariate calibration by Gontijo, Lucas Caixeta, Guimarães, Eloiza, Mitsutake, Hery, Santana, Felipe Bachion de, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…•Quantification of biodiesels in diesel by FTMIR–HATR using the whole spectrum.•The models are capable of determining biodiesel in a diesel using a single…”
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Characterization of Biodiesel by Infrared Spectroscopy with Partial Least Square Discriminant Analysis by Máquina, Ademar Domingos Viagem, Souza, Letícia Maria de, Gontijo, Lucas Caixeta, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…This paper reports a method to simultaneously classify 7% biodiesel and 93% diesel based on vegetable oil as the source of the biodiesel. Mafurra, moringa, and…”
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Qualitative and Quantitative Monitoring of Methyl Cotton Biodiesel Content in Biodiesel/Diesel Blends Using MIR Spectroscopy and Chemometrics Tools by Buiatte, José Eduardo, Guimarães, Eloíza, Mitsutake, Hery, Gontijo, Lucas Caixeta, Santos, Douglas Queiroz, Borges Neto, Waldomiro

“…This paper presents methodologies for monitoring the quality of methyl cotton biodiesel in biodiesel/diesel blends using mid-infrared spectroscopy (MIR) and…”
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Determinação do teor alcoolico em cachaças utilizando titulação e diagrama de fases: uma opção para trabalhar conteúdos de química by Almeida, Alex Magalhães de, Pimenta, Nunes Antonio, Nascimento, Karina Silva, Gontijo, Lucas Caixeta, Eiras, Sebastião de Paula

“…A medida do teor de álcool em bebidas é determinada satisfatoriamente usando densímetros ou alcoômetros, pois apresentam resultados rápidos e práticos. Essa…”
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