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Unfolded partial least-squares with residual quadrilinearization: A new multivariate algorithm for processing five-way data achieving the second-order advantage. Application to fourth-order excitation-emission-kinetic-pH fluorescence analytical data
(Elsevier Science, 2011-12)
Unfolded partial least-squares in combination with residual quadrilinearization (U-PLS/RQL), is developed as aew latent structured algorithm for the processing of fourth-order instrumental data. In order to check its ...
Second-order multivariate models for the processing of standard-addition synchronous fluorescence–pH data. Application to the analysis of salicylic acid and its major metabolite in human urine
(Elsevier Science, 2014-01)
In the present work, we describe the determination of salicylic acid and its major metabolite, salicyluric acid, in spiked human urine samples, using synchronous fluorescence spectra measured in a flowinjection system with ...
Achieving second order advantage with multi-way partial least squares and residual bi-linearization with total synchronous fluorescence data of monohydroxy–polycyclic aromatic hydrocarbons in urine samples
(Elsevier Science, 2014-02)
Achieving second order advantage with multi-way partial least squares and residual bi-linearization with total synchronous fluorescence data of monohydroxy–polycyclic aromatic hydrocarbons in urine samples
Four-way kinetic-excitation-emission fluorescence data processed by multi-way algorithms. Determination of carbaryl and 1-naphthol in water samples in the presence of fluorescent interferents
(Elsevier Science, 2010-09)
Four-way data were obtained by recording the kinetic evolution of excitation-emission fluorescence matrices for samples containing the analytes carbaryl and 1-naphthol, two widely employed pesticides, in the concentration ...
Determination of ochratoxin A in coffee and tea samples by coupling second-order multivariate calibration and fluorescence spectroscopy
(Elsevier Science, 2020-11-01)
A new method to quantify the mycotoxin ochratoxin A (OTA) in coffee and tea samples is proposed based on second-order multivariate calibration and excitation-emission fluorescence matrix (EEFM) data. Experimental conditions ...
Second-order advantage with excitation-emission fluorescence spectroscopy and a flow-through optosensing device: Simultaneous determination of thiabendazole and fuberidazole in the presence of uncalibrated interferences
(Royal Society of Chemistry, 2010-04)
This paper presents a novel approach for the simultaneous determination of two widely used fungicides in a very interfering environment, combining the advantage of a spectrofluorimetric optosensor coupled to a flow-injection ...
Excitation-emission fluorescence-kinetic data obtained by Fenton degradation. Determination of heavy-polycyclic aromatic hydrocarbons by four-way parallel factor analysis
(Elsevier Science, 2017-04)
For the first time, a simple and environmentally friendly third-order/four-way calibration was applied for the simultaneous determination of five heavy-polycyclic aromatic hydrocarbons (PAHs) in interfering environments. ...
A green-analytical chemistry method for agrochemical-residue analysis in vegetables
(Elsevier Science, 2016-09)
Ten agrochemicals, including fungicides, insecticides, herbicides and a plant growth regulator, were quantified at part per billion levels in complex matrices using a green-analytical chemistry (GAC) method. Liquid ...
A novel fast quality control strategy for monitoring spoilage on mayonnaise based on modeling second-order front-face fluorescence spectroscopy data
(Elsevier Science, 2017-03)
The potential of front-face fluorescence spectroscopy along with chemometric algorithms was investigated for the non-destructive evaluation of mayonnaise spoilage stored at 5 °C and 37 °C during six days. Fluorescence ...