Related Experiment Video
Updated: Jun 28, 2026

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
Published on: March 29, 2019
Spectrophotometric determination of bismuth in water samples after preconcentration of its thiourea-bromide ternary
Tayyebeh Madrakian1, Abbas Afkhami, Akram Esmaeili
1Department of Chemistry, Faculty of Science, Bu-Ali Sina University, Hamadan 65174, Iran.
Abstract:
A simple, accurate, sensitive and reliable method for the selective extraction and spectrophotometric determination of Bi(III) was developed. Bi(III) was collected on activated carbon after complexation with thiourea and bromide ion in acidic media. The complex retained on activated carbon was then desorbed with the bromide solution in N,N-dimethylformamide (DMF) and determined spectrophotometrically at 375 nm. The linear calibration ranges and limit of detection for the proposed method was 1.00x10(-9)-1.50x10(-7) and 8.00x10(-10) mol l(-1), respectively. The influence of the interfering cations and anions on the determination of bismuth was investigated. The method was successfully applied to the extraction and determination of bismuth in natural water samples.
More Related Videos
Related Concept Videos
Precipitation Titration: Endpoint Detection Methods
In the Volhard method, a standard excess of AgNO3 is first added to the...
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Redox Titration: Iodimetry and Iodometry
Precipitation and Co-precipitation
Precipitation Titration Curve: Analysis
Complexometric Titration: Overview

