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Updated: Jun 28, 2026

Synthesis and Evaluation of a Ruthenium-based Mitochondrial Calcium Uptake Inhibitor
Published on: October 26, 2017
Ruthenium determination in synthetic purex waste solutions by AAS.
1Zentralinstitut für Isotopen- und Strahlenforschung der AdW der DDR, Permoserstr, 15, 7050 Leipzig, DDR.
This study presents a flame Atomic Absorption Spectroscopy (AAS) method for determining ruthenium in Purex waste. The method effectively measures ruthenium without interference from its stable Ru-NO bond.
Area of Science:
- Analytical Chemistry
- Nuclear Chemistry
Background:
- Purex waste solutions contain ruthenium, a critical element for monitoring.
- Accurate determination of ruthenium is essential for nuclear waste management.
Purpose of the Study:
- To develop and describe a reliable method for ruthenium determination in synthetic Purex waste.
- To assess potential interferences and the impact of ruthenium's chemical form on measurement accuracy.
Main Methods:
- Flame Atomic Absorption Spectroscopy (AAS) was employed.
- A lanthanum buffer was used to mitigate interferences.
- Analysis of various ruthenium compounds including ruthenium nitrosyl nitrate, ruthenium(IV) hydroxychloride, and alkaline ruthenate.
Main Results:
- The air-acetylene flame with a lanthanum buffer showed minimal cerium interference.
- Identical results were obtained for different ruthenium sample types, indicating effective atomization.
- The stability of the ruthenium-nitrogen-oxygen (Ru-NO) bond did not impede the atomization process.
Conclusions:
- Flame AAS provides a viable method for ruthenium determination in Purex waste.
- The method is robust across different ruthenium chemical forms.
- Interference from cerium is manageable under the specified conditions.
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