A tribute to Professor Ronei J. Poppi, a pioneer of multivariate calibration in South America and a prolific mentor of chemometricians in Brazil
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Chemometrics"
DOI: 10.1002/cem.3284
Abstract: It was with great regret that we received the incredibly sad news of the untimely death of Professor Ronei Jesus Poppi (Figure 1), on the last April 25 in the city of Campinas, S~ao Paulo… read more here.
Keywords: chemistry; ronei; calibration; multivariate calibration ... See more keywords
MVC3_GUI: A MATLAB graphical user interface for third-order multivariate calibration. An upgrade including new multi-way models
Sign Up to like & getrecommendations! Published in 2018 at "Chemometrics and Intelligent Laboratory Systems"
DOI: 10.1016/j.chemolab.2017.12.012
Abstract: Abstract An upgrade is presented of a MATLAB graphical user interface toolbox for implementing third-order/four-way multivariate calibration models. The new Multivariate Calibration 3 (MVC3_GUI) incorporates new models and features that make it a very versatile… read more here.
Keywords: matlab graphical; mvc3 gui; interface; way ... See more keywords
Replacement Orthogonal Wavelengths Selection as a new method for multivariate calibration in spectroscopy
Sign Up to like & getrecommendations! Published in 2019 at "Microchemical Journal"
DOI: 10.1016/j.microc.2018.11.054
Abstract: Wavelength selection is a critical step in multivariate calibration. Variable selection methods are used to find the most relevant variables, leading to improved prediction accuracy, while simplifying both the built models and their interpretation. In… read more here.
Keywords: multivariate calibration; spectroscopy; method; orthogonal wavelengths ... See more keywords
Analytical strategies based on near infrared spectroscopy and multivariate calibration for rapid quantification of florfenicol at low-concentrations in medicated-feed pellets
Sign Up to like & getrecommendations! Published in 2019 at "Microchemical Journal"
DOI: 10.1016/j.microc.2019.04.033
Abstract: Abstract Florfenicol (FF) is an antibiotic that is widely used in the salmon industry to decrease mortality caused by several diseases. Aquiculture salmon cages require rapid techniques to quantify this antibiotic in the pellets before… read more here.
Keywords: calibration; multivariate calibration; spectroscopy; near infrared ... See more keywords
Interval LASSO regression based extreme learning machine for nonlinear multivariate calibration of near infrared spectroscopic datasets
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DOI: 10.1039/c8ay00466h
Abstract: As a nonlinear multivariate calibration method, extreme learning machine (ELM) has recently received increasing attention for its fast learning speed and excellent generalized performance. However, it is implemented normally under the empirical risk minimization scheme,… read more here.
Keywords: based elm; nonlinear multivariate; elm; lasso ... See more keywords
Linear transformations of multivariate calibration models in near infrared spectroscopy: A comparative study
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Near Infrared Spectroscopy"
DOI: 10.1177/0967033517723253
Abstract: It was shown that linear transformations are suitable for use in multivariate calibration in near infrared spectroscopy as data compression tools. Partial Least Squares calibration models were built using spectral data transformed by expansion in… read more here.
Keywords: infrared spectroscopy; near infrared; linear transformations; calibration ... See more keywords
New Method for Determination of Trans-resveratrol for Quality Evaluation of Red Wines by Multivariate Calibration Associated with UVVIS Spectroscopy
Sign Up to like & getrecommendations! Published in 2021 at "Current Analytical Chemistry"
DOI: 10.2174/1573411017666201229142412
Abstract: This work describes a fast, simple, sensitive, and low-cost method for the identification of resveratrol in different brands and varieties of red wines. It was developed based on a comparison of the UV-VIS spectra of… read more here.
Keywords: red wines; method; spectroscopy; trans resveratrol ... See more keywords