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Highly sensitive quantitation of pesticides in fruit juice samples by modeling four-way data gathered with high-performance liquid chromatography with fluorescence excitation-emission detection
(Elsevier Science, 2016-07)
A study regarding the acquisition and analytical utilization of four-way data acquired by monitoring excitation-emission fluorescence matrices at different elution time points in a fast HPLC procedure is presented. The ...
Multidimensional voltammetry: Four-way multivariate calibration with third-order differential pulse voltammetric data for multi-analyte quantification in the presence of uncalibrated interferences
(Elsevier Science, 2015-11)
A four-way multivariate calibration approach based on the combination of differential pulse voltammetric (DPV) data and four-way algorithms is described for the first time. To achieve this goal, the DPV response of each ...
Evaluation of complex spectral-pH three-way arrays by modified bilinear least-squares: Determination of four different dyes in interfering systems
(Royal Society of Chemistry, 2005-09)
This article reports on the first application of a modified version of the bilinear least-squares model to absorbance-pH second-order data recorded for complex samples. The latter are composed of fruit drink powders, where ...
New developments for the sensitivity estimation in four-way calibration with the quadrilinear parallel factor model
(American Chemical Society, 2012-02)
Appropriate closed-form expressions are known for estimating analyte sensitivities when calibrating with one-, two-, and three-way data (vectors, matrices, and three-dimensional arrays, respectively, built with data for a ...
Novel Augmented Parallel Factor Model for Four-Way Calibration of High-Performance Liquid Chromatography-Fluorescence Excitation-Emission Data
(Elsevier, 2015-03)
A new augmented parallel factor analysis model (Augmented PARAFAC) is presented, inspired by the useful augmentation concept employed in multivariate curve resolution-alternating least-squares (MCR-ALS), applicable to ...
Analytical approach for the simultaneous determination of quinolones in edible animal products. Modeling pH–modulated fluorescence excitation–emission matrices four–way arrays
(Elsevier Science, 2019-01)
This paper describes a novel procedure for the simultaneous determination of four quinolones pipemidic acid, enoxacin, marbofloxacin and enrofloxacin in different edible animal tissues. It is based on third–order data ...
Second-order capillary electrophoresis diode array detector data modeled with the Tucker3 algorithm. A novel strategy for Argentinean white wine discrimination respect to grape variety
(Wiley VCH Verlag, 2016-08)
Data obtained by capillary electrophoresis with diode array detection (CE‐DAD) were modeled with the purpose to discriminate Argentinean white wines samples produced from three grape varieties (Torrontés, Chardonnay, and ...
Four-way calibration applied to the processing of pH-modulated fluorescence excitation-emission matrices. Analysis of fluoroquinolones in the presence of significant spectral overlapping
(Elsevier Science, 2017-05)
A new methodology involving four-way multivariate calibration with a balanced number of data points in all modes is presented. The method is based on fluorescence excitation-emission matrices modulated by a double pH ...
Four-way multivariate calibration using ultra-fast High-Performance Liquid Chromatography with Fluorescence Excitation-Emission detection. Application to the direct analysis of chlorophylls a and b and pheophytins a and b in olive oils
(Elsevier, 2013-06)
A four-way multivariate calibration approach, based on the combination of ultra-fast high-performance liquid chromatographic data and four-way algorithms, is described for the first time. To achieve this goal, several ...