A MnO 2 –Co 3 O 4 –CaO catalytic pyrolysis method for mercury isotope analysis in marine sediments

Key Points

• This research aims to develop a catalytic pyrolysis method to analyze mercury isotopes in marine sediments while maximizing recovery rates.
• Utilized a composite of MnO2, Co3O4, and CaO for catalytic pyrolysis
• Tested the method on marine sediment samples to assess Hg recovery and isotope precision
• Eliminated tellurium interference during the analysis
• Achieved near 100% recovery of mercury from marine sediments
• Eliminated tellurium interference, enhancing measurement accuracy
• Enabled precise mercury isotope analysis for better source tracing