Related Experiment Video
Updated: Aug 25, 2026

A Colorimetric Method for Measuring Iron Content in Plants
Published on: September 7, 2018
Direct determination of iron in ferritin using the polarographic catalytic current
1Institute of Electroanalytical Chemistry, Northwest University, 710069, Xian, People's Republic of China.
Abstract:
A new method for the determination of iron in ferritin using the polarographic catalytic current has been developed. Iron is released in NaOH and triethanolamine (TEA) solution and subsequently determined based on the polarographic catalytic wave in the presence of bromate with the peak potential of -1.0 V (vs.SCE). The 2.5-derivative peak height of iron is linearly proportional to its concentration in the range of 8.0 x 10(-8)-1.0 x 10(-6) g/ml with a correlation coefficient of 0.9991. The method has been applied to the determination of iron in human fetal liver and horse-spleen ferritin and the recovery is 95-112%.
More Related Videos
04:48Setup 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
09:51TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples
Published on: September 19, 2025
Related Concept Videos
Precipitation Titration: Endpoint Detection Methods
In the Volhard method, a standard excess of AgNO3 is first added to the...
Voltammetry: Factors Affecting Measurements
Controlled-Current Coulometry: Overview
Controlled-Current Coulometry: Coulometric Titration
The fundamental requirements for coulometric titrations are (1) 100% efficiency in the reagent-generating electrode reaction and (2) a stoichiometric and preferably rapid reaction between the generated...
Coulometry: Overview