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Javad Zolgharnein

Javad Zolgharnein

Academic rank: Professor
ORCID: http://orcid.org/0000-0003-3889-0128
Education: PhD.
ScopusId: 6602705315
Faculty: Science
Address: Arak University
Phone:

Research

Title
Simultaneous Spectrophotometeric Determination of Ga (III) and Tl (III) by Using Genetic Algorithm Based on Wavelength Selection-Partial Least Squares Regression
Type
JournalPaper
Keywords
Ga (III), Tl (III), Simultaneous determination, PLS, GA-PLS
Year
2015
Journal JOURNAL OF ANALYTICAL CHEMISTRY
DOI
Researchers Javad Zolgharnein ، Neda Asanjrani ، Gholamhassan Azimi ، Jahanbakhsh Ghasemi

Abstract

A new method for simultaneous spectrophotometric determination of Ga (III) and Tl (III) based on their complexes with 4-(2-Pyridylazo)-resorcinol (PAR) is proposed. The results of simultaneous determinations in mixture were obtained by using partial least-squares regression (PLS) and genetic algorithm-partial least squares regression (GA-PLS). Moreover, the comparison between them has been conducted. The relative error of prediction (RPE) for Ga (III) and Tl (III) were calculated to be 4.98, 8.84 from PLS and 4.83, 4.82 due to running GA-PLS respectively. The pH effect on the sensitivity and selectivity was studied according to the net analyte signal (NAS) approach. The pH was selected at 5.5 as the optimum value to compromise the sensitivity and selectivity of these metal ions. As a consequence, the GA-PLS shows better prediction ability over full spectrum of PLS.