Related Experiment Video
Updated: Aug 17, 2026

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry (CE-ICP-MS) for Quantification of Iron Redox Species (Fe(II), Fe(III))
Published on: May 4, 2020
Simultaneous spectrophotometric determination of Fe(III), Al(III) and Cu(II) by partial least-squares calibration
A Safavi1, H Abdollahi, R Mirzajani
1Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran. safavi@chem.susc.ac.ir
Abstract:
A spectrophotometric method for simultaneous determination of Fe(III), Al(III) and Cu(II) using Alizarin Red S as a chelating agent was developed. The parameters controlling behavior of the system were investigated and optimum conditions were selected. A partial least-squares multivariate calibration method was used for the analysis of ternary mixtures of Fe(III), Al(III) and Cu(II) over the range of 450-6000, 140-4000 and 450-15000 ng ml(-1), respectively. Absorbance data were taken between 400 and 800 nm. Applying this method to simultaneous determination of these metal ions in several synthetic alloy solutions with total relative standard error of less than 5% validated the proposed method.
Related Concept Videos
Calibration Curves: Linear Least Squares
For data that follow a straight line, the standard method for fitting is the linear...
Atomic Emission Spectroscopy: Lab
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...
Precipitation Titration: Endpoint Detection Methods
In the Volhard method, a standard excess of AgNO3 is first added to the...
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
EDTA: Indirect and Alkalimetric Titration

