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Multivariate quality control studies applied to Ca(II) and Mg(II) determination by a portable method
(Wiley-Blackwell, 1998-09-01)
A portable or field test method for simultaneous spectrophotometric determination of calcium and magnesium in water using multivariate partial least squares (PLS) calibration methods is proposed. The method is based on the ...
Application of a chemometric method for simultaneous determination of acetaminophen and diclofenac in content-uniformity and drug-dissolution studies
(Springer Heidelberg, 2005-07)
A new, repeatable, and rapid method has been developed for resolution of binary mixtures of acetaminophen and diclofenac with minimum sample pretreatment and without separation of the analytes. The method, based on the ...
Quantificação dos teores de biodiesel de crambe e mafurra em misturas com diesel utilizando espectroscopia mir e ferramentas quimiométricas
(Universidade Federal de UberlândiaBrasilQuímica Industrial, 2019)
Rapid and Simultaneous Prediction of Eight Diesel Quality Parameters through ATR-FTIR Analysis
(2018-01-01)
Quality assessment of diesel fuel is highly necessary for society, but the costs and time spent are very high while using standard methods. Therefore, this study aimed to develop an analytical method capable of simultaneously ...
Modelos de regressão PLS com erros heteroscedásticos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Estatística - PPGEs, 2010-01-26)
Two problems related to Partial Least Squares method are considered in this work. Heteroscedastic errors and an asymmetrical error distribution. In the _rst part of this work a methodology is developed which allows, based ...
Predicting soluble solid content in intact jaboticaba [Myrciaria jaboticaba (Vell.) O. Berg] fruit using near-infrared spectroscopy and chemometrics
(Elsevier B.V., 2014-09-15)
The aim of this study was to evaluate the potential of near-infrared reflectance spectroscopy (NIR) as a rapid and non-destructive method to determine soluble solid content (SSC) in intact jaboticaba [Myrciaria jaboticaba ...
Simultaneous determination of quality parameters in yerba mate (Ilex paraguariensis) samples by application of near-infrared (NIR) spectroscopy and partial least squares (PLS)
(Elsevier Science, 2020-05)
A simple, fast and eco-friendly methodology to determine quality parameters, such as moisture, total ashes and caffeine content, in yerba mate samples was developed using near-infrared (NIR) spectroscopy and chemometrics. ...
Advanced and tailored applications of an efficient electrochemical approach assisted by AsLSSRCOW- rPLS and finding ways to cope with challenges arising from the nature of voltammetric data
(Elsevier, 2015-07)
The use of chemometric data processing is becoming an important part of modern voltammetry. The most challenges arising from voltammetric data are interactions among analytes and the background interferents which may cause ...
Simultaneous determination of BTX and total hydrocarbons in water employing near infrared spectroscopy and multivariate calibration
(Elsevier Science SaLausanneSuíça, 2011)