Calibration Transfer of Partial Least Squares Regression Models between Desktop Nuclear Magnetic Resonance Spectrometers

Autor: Evandro Bona, Ernesto Danieli, Diego Galvan, Mario Henrique M. Killner, Dionísio Borsato

Publikováno v: Analytical Chemistry. 92:12809-12816

Low-field proton nuclear magnetic resonance (LF-1H NMR) devices based on permanent magnets are a promising analytical tool to be extensively applied to the process analytical chemistry scenario. To enhance its analytical applicability in samples wher

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fce7ad0a1706d94c3a1a941d5962b0d2
https://doi.org/10.1021/acs.analchem.0c00902

Data fusion of middle-resolution NMR spectroscopy and low-field relaxometry using the Common Dimensions Analysis (ComDim) to monitor diesel fuel adulteration

Autor: Leticia Magalhães de Aguiar, Luiz Alberto Colnago, Diego Galvan, Evandro Bona, Mario Henrique M. Killner

Publikováno v: Talanta. 236

Medium-resolution (MR-NMR) and time-domain NMR relaxometry (TD-NMR) using benchtop and low-field NMR instruments are powerful tools to tackle fuel adulteration issues. In this work, for the first time, we investigate the possibility of enhancing the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf71510f916dba9f60e8c1ed9dcff970
https://pubmed.ncbi.nlm.nih.gov/34635228

Mathematical Modeling of the Transesterification Reaction by Finite Elements: Optimization of Kinetic Parameters Using the Simplex Sequential Method

Autor: Dionísio Borsato, Ana Carolina Gomes Mantovani, Hágata Cremasco, Diego Galvan, Mario Henrique M. Killner, Marintho B. Quadri, Letícia Thaís Chendynski

Publikováno v: Journal of the Brazilian Chemical Society v.31 n.2 2020
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 31, Issue: 2, Pages: 313-319, Published: 20 JAN 2020

The use of biodiesel as fuel has been presented as a viable alternative in the search for renewable energies. It can be produced from the transesterification reaction of vegetable oils with methanol in the presence of sodium or potassium hydroxide as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5addfb7464e80c2fd969170004526f1
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000200313

Mobile compact 1H NMR spectrometer promises fast quality control of diesel fuel

Autor: Federico Casanova, Bernhard Blümich, Ernesto Danieli, Jarbas José R. Rohwedder, Mario Henrique M. Killner

Publikováno v: Fuel. 203:171-178

To address the need for fast quality control of diesel fuel, this study introduces a compact 1H NMR spectrometer to develop Partial Least Squares (PLS) regression models for rapidly determining several quality parameters of diesel fuel such as specif

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5eb26bed1e847bd2341323c2b9d1585f
https://doi.org/10.1016/j.fuel.2017.04.081

Online monitoring of transesterification reaction by medium-resolution benchtop 1H NMR and NIR spectroscopy

Autor: Jarbas José R. Rohwedder, Dionísio Borsato, Leticia Magalhães de Aguiar, Mario Henrique M. Killner, Diego Galvan

Publikováno v: Fuel Processing Technology. 208:106511

Despite the fact that there are many works treating new analytical approaches to monitor the transesterification reaction to produce biodiesel, only a few of them are able to quantify the minority, but important compounds, such as monoglyceride (MG)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3446c900189b1f2877ea8cdb917cc87a
https://doi.org/10.1016/j.fuproc.2020.106511