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Updated: Jun 28, 2026
07:32
Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
Flow injection determination of bromide ion in a developer using bromide ion-selective electrode detector
T Masadome1, Y Asano, T Nakamura
1Department of Chemical Science and Engineering, Ariake National College of Technology, Omuta, Fukuoka 836-8585, Japan.
Talanta
|October 31, 2008
Summary
A new potentiometric flow injection method accurately determines bromide ion concentration in developers using a bromide ion-selective electrode. This technique offers reliable results and is unaffected by common interfering substances found in developer solutions.
Area of Science:
- Analytical Chemistry
- Electrochemistry
Background:
- Bromide ion determination is crucial in various industrial applications, including photographic developers.
- Existing methods may suffer from interference or require complex sample preparation.
Purpose of the Study:
- To develop a novel, sensitive, and interference-free method for bromide ion determination in developer solutions.
- To utilize a flow-through bromide ion-selective electrode for real-time analysis.
Main Methods:
- A potentiometric flow injection analysis (FIA) system was employed.
- A flow-through bromide ion-selective electrode (Br-ISE) with an Ag(2)S-AgBr sensing membrane was used.
- Peak height signals were correlated with bromide ion concentration.
Main Results:
- A linear relationship was established between peak height and bromide ion concentration (1.0x10⁻³ to 1.0x10⁻² mol L⁻¹).
- The method demonstrated good precision with a relative standard deviation of 1.3% for a 6x10⁻³ mol L⁻¹ bromide ion solution.
- A sampling rate of 17-20 samples per hour was achieved.
- The method showed no interference from organic reducing agents or other organic substances in developer samples.
Conclusions:
- The proposed potentiometric FIA method is suitable for accurate and reliable bromide ion determination in developers.
- The use of a Br-ISE in an FIA system provides a robust and interference-resistant analytical approach.
- This method offers a practical solution for quality control in applications involving bromide ions in complex matrices.
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