Kinetic analysis of azo dye decolorization during their acid–base equilibria: photocatalytic degradation of tartrazine and sunset yellow

M Rashidi, SM Sajjadi, HZ Mousavi - Reaction Kinetics, Mechanisms and …, 2019 - Springer
In this study, the kinetics of the photodegradation of tartrazine (TA) and sunset yellow (SY)
was systematically evaluated at different pH values in the presence of α-Fe 2 O 3 …

Quality assessment of the saffron samples using second-order spectrophotometric data assisted by three-way chemometric methods via quantitative analysis of …

S Masoum, A Gholami, M Hemmesi, S Abbasi - Spectrochimica Acta Part A …, 2015 - Elsevier
Saffron is a valuable culinary spice that can be used not only for dyes and cooking, but also
for many medical purposes. Due to its high price and restriction of its production, various …

A novel second-order standard addition analytical method based on data processing with multidimensional partial least-squares and residual bilinearization

VA Lozano, GA Ibañez, AC Olivieri - Analytica chimica acta, 2009 - Elsevier
In the presence of analyte–background interactions and a significant background signal,
both second-order multivariate calibration and standard addition are required for successful …

On uniqueness and selectivity in three-component parallel factor analysis

N Omidikia, H Abdollahi, M Kompany-Zareh - Analytica Chimica Acta, 2013 - Elsevier
Unambiguous recovery of profiles is a distinguishable advantage of Parallel Factor Analysis
(PARAFAC) as a trilinear model and has made it a promising exploratory tool for data …

Application of ultrasonic-assisted inclusion complex formation with α–cyclodextrin for simultaneous spectrophotometric determination of gallic acid and vanillic acids in …

M Zaripour, V Zare-Shahabadi, HJ Jahromi - Spectrochimica Acta Part A …, 2019 - Elsevier
There are various methodologies to generate second–order data. Spectrophotometric
method owing to its high sensitivity continues to be of wide interest to analytical chemists …

A pilot study on parallel factor analysis as a diagnostic tool for oral cancer diagnosis: A statistical modeling approach

U Kanniyappan, E Gnanatheepam… - Journal of …, 2021 - Wiley Online Library
Excitation‐emission matrix (EEM) has been extensively used as the comprehensive
diagnostic tool to extract the biochemical fingerprint of the intrinsic fluorophores in a single …

Comparison of PARAFAC and PARALIND in modeling three‐way fluorescence data array with special linear dependences in three modes: a case study in 2‐naphthol

H Chen, B Zheng, Y Song - Journal of chemometrics, 2011 - Wiley Online Library
Owing to excited‐state proton transfer in 2‐naphthol solutions, the fluorescence excitation–
emission matrices (EEMs) have factors that are highly dependent in three modes. For the …

On rotational ambiguity in parallel factor analysis

H Abdollahi, SM Sajjadi - Chemometrics and Intelligent Laboratory Systems, 2010 - Elsevier
Although, in many cases parallel factor analysis (PARAFAC) resolves the trilinear data
arrays to the true physical factors that form the data, ie, unique solution can be found, the …

Analysis of variation matrix array by bilinear least squares–residual bilinearization (BLLS–RBL) for resolving and quantifying of foodstuff dyes in a candy sample

K Asadpour-Zeynali, SM Sajjadi, F Taherzadeh… - … Acta Part A: Molecular …, 2014 - Elsevier
Bilinear least square (BLLS) method is one of the most suitable algorithms for second-order
calibration. Original BLLS method is not applicable to the second order pH-spectral data …

Hard–soft modeling parallel factor analysis to solve equilibrium processes

SM Sajjadi, H Abdollahi - Journal of Chemometrics, 2011 - Wiley Online Library
PARAFAC model is the most famous model for analyzing three‐way data. However, this
method does not converge to chemically meaningful solutions when applied to three‐way …