MARKES Petroleum Fingerprinting

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Petrochemical Fingerprinting

Precise characterisation of petroleum-derived fuels is crucial for quality control, to understand the reactions that take place during refining processes, and also for environmental monitoring. Our ‘Petrochemical fingerprinting’ product package provides outstanding separation of complex mixtures, as well as the flexibility to adapt to different detector configurations.

Simple, automated peak classification in petrochemical samples – such as the substituted benzothiophenes and naphthalenes highlighted here – is a key advantage of the GC×GC software provided with our ‘Petrochemical fingerprinting’ product package.

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The challenge

  • Samples are highly complex, with thousands of compounds per sample.
  • Automated reporting of sample composition is essential.
  • The analyte range is broad – trace contaminants, adulterants or additives may also need to be identified.

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The solution

  • INSIGHT GC×GC flow modulation provides robust and repeatable separation of complex petrochemical mixtures.
  • BenchTOF2 mass spectrometers provide improved precision of group boundaries and confident identification of trace-level species such as sulfurs.
  • Tandem Ionisation for BenchTOF2 simultaneously acquires both ‘soft EI’ and regular 70 eV mass spectra, for confident identification of challenging compounds, such as branched hydrocarbons.
  • ChromSpace software provides simple group-type analysis and reporting, and can unify lab processing through compatibility with a range of datafile formats, while the ChromCompare+ module adds the ability to quickly uncover trace contaminants or adulterants across batches of fuel.

The benefits

  • Adaptability: Flexible configurations allow parallel acquisition by different detection techniques, e.g., mass spectrometry, FID or SCD.
  • Streamlined data-processing: Automated workflows allow fast group-type analysis, using easy-to-learn stencils and simple reporting.
  • Confidence: The product package ensures reliable detection of trace contaminants, adulterants and additives.

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