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Updated: Jun 28, 2026
08:29
Thermal Measurement Techniques in Analytical Microfluidic Devices
Published on: June 3, 2015
Use of non-selective reagents in direct thermometry
P Marik-Korda1, L Buzási, T Cserfalvi
1Institute for General and Analytical Chemistry, Technical University, Gellért tér 4, Budapest XI, Hungary.
Talanta
|June 1, 1973
Summary
This study introduces a new method for simultaneously determining sulphide and thiosulphate using iodine and bromine water. The technique leverages differences in reaction heats, offering a practical approach for chemical analysis.
Area of Science:
- Analytical Chemistry
- Chemical Thermodynamics
Background:
- Sulphide and thiosulphate are common sulfur compounds.
- Accurate simultaneous determination is challenging due to non-selective reagents.
Purpose of the Study:
- Develop a method for simultaneous determination of sulphide and thiosulphate.
- Utilize differences in heats of reaction for selective analysis.
Main Methods:
- Employed iodine solution and bromine water as non-selective reagents.
- Based the determination on the distinct heats of reaction for each analyte.
- Calculated an error diagram to assess accuracy.
Main Results:
- Successfully demonstrated simultaneous determination of sulphide and thiosulphate.
- Compared theoretical errors with practical results, validating the method's precision.
- The method shows promise for accurate quantification in complex samples.
Conclusions:
- The developed method provides a reliable approach for simultaneous sulphide and thiosulphate analysis.
- The use of reaction heats offers a novel basis for differentiating similar analytes.
- Error analysis confirms the practical applicability and accuracy of the technique.
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