Process and reaction monitoring by low-field NMR spectroscopy
F Dalitz, M Cudaj, M Maiwald, G Guthausen - Progress in nuclear magnetic …, 2012 - Elsevier
New developments in spectroscopic techniques for process control are in general driven by
the shortcomings of existing technology, eg, when sensitivity, selectivity, robustness, etc. do …
the shortcomings of existing technology, eg, when sensitivity, selectivity, robustness, etc. do …
Monitoring petroleum fuel adulteration: A review of analytical methods
BP Vempatapu, PK Kanaujia - TrAC Trends in Analytical Chemistry, 2017 - Elsevier
Detection of adulteration in the petroleum fuels (gasoline and diesel) is challenging because
the adulterants usually include those compounds which are already present in these fuels …
the adulterants usually include those compounds which are already present in these fuels …
Optimized bucketing for NMR spectra: Three case studies
SAA Sousa, A Magalhaes, MMC Ferreira - Chemometrics and Intelligent …, 2013 - Elsevier
The use of nuclear magnetic resonance (NMR) data coupled to chemometric methods has
become increasingly popular in the last decade. However, a serious drawback of these …
become increasingly popular in the last decade. However, a serious drawback of these …
Cytotoxic evaluation of phenolic compounds from lichens against melanoma cells
LFG Brandão, GB Alcantara, MFC Matos… - Chemical and …, 2013 - jstage.jst.go.jp
Usnea sp., Ramalina sp., Cladina confusa (SANT.) FOLMM. & AHTI, Dirinaria aspera
HÄSÄNEN, and Parmotrema lichexanthonicum ELIASARO & ADLER were evaluated …
HÄSÄNEN, and Parmotrema lichexanthonicum ELIASARO & ADLER were evaluated …
Quality classification of gasoline samples based on their aliphatic to aromatic ratio and analysis of PONA content using genetic algorithm based multivariate …
MK Khorrami, M Sadrara, M Mohammadi - Infrared Physics & Technology, 2022 - Elsevier
In this study, attenuated total reflectance fourier transform mid-infrared (ATR-FTIR) spectral
information was used to classify gasoline samples according to their aliphatic to aromatic …
information was used to classify gasoline samples according to their aliphatic to aromatic …
Effect of air temperature and velocity on drying kinetics and essential oil composition of Piper umbellatum L. leaves
LNS Dorneles, ALD Goneli, CAL Cardoso… - Industrial Crops and …, 2019 - Elsevier
Piper umbellatum L. possesses diuretic, antimalarial, vermifuge, and anti-inflammatory
properties, in addition to having essential oil in its leaves. Presuming that substances and …
properties, in addition to having essential oil in its leaves. Presuming that substances and …
Detection and estimation of Super premium 95 gasoline adulteration with Premium 91 gasoline using new NIR spectroscopy combined with multivariate methods
Super premium 95 octane gasoline is a special blend of petrol with a higher octane rating
that can produce higher engine power, as well as knock-free performance for cars with a …
that can produce higher engine power, as well as knock-free performance for cars with a …
[HTML][HTML] Detection and quantification of adulterants in gasoline using distillation curves and multivariate methods
G Mendes, PJS Barbeira - Fuel, 2013 - Elsevier
This study has shown that the use of distillation curves combined with PCA (Principal
Component Analysis) and PLS-DA (Partial Least Squares Discriminant Analysis) provides a …
Component Analysis) and PLS-DA (Partial Least Squares Discriminant Analysis) provides a …
QCM virtual multisensor array for fuel discrimination and detection of gasoline adulteration
Herein, a simplistic quartz crystal microbalance (QCM) approach for discrimination of
petroleum based fuels is presented. In this regard, a quartz crystal microbalance (QCM) …
petroleum based fuels is presented. In this regard, a quartz crystal microbalance (QCM) …
Characterization of gasoline by Raman spectroscopy with chemometric analysis
JA Ardila, FLF Soares, MA dos Santos Farias… - Analytical …, 2017 - Taylor & Francis
ABSTRACT A rapid Raman spectroscopy protocol is reported to classify gasoline according
to its distributor and to identify and quantify common adulterants. Gasoline from three …
to its distributor and to identify and quantify common adulterants. Gasoline from three …