DVLS Fast Peroxide Analyzer

Peroxides present a potential safety hazard during production and storage. They also have a negative effect on fuels and fuel systems by reducing the octane rating in gasoline. To monitor the trace amounts of peroxides Da Vinci Laboratory Solutions has developed the Fast Peroxide Analyzer based upon a flow injection analysis as a safe and fast alternative to the traditional analysis methods, such as ASTM D2340 and ASTM E299.

Safe & fast analysis of Peroxides at ppb level

The Fast Peroxide Analyzer uses an Agilent 1260 infinity II HPLC system configured with a dedicated reaction module to automate the safe, fast and accurate analysis of active oxygen originated from hydrogen peroxides and other organic peroxides. 

The sample is injected into the reagent stream of acidified Iodide and transferred to the Reaction Module. The Peroxides present in the sample will react with the Iodide to Iodine and form a brownish color. The DVLS Reaction Module is designed to optimize the conversion to Iodine. This is the same reaction that takes place in the iodometric titration: 

ROOR + 2I- + 2H+ → I2 + 2 ROH

After the reaction the formed Iodine is detected using UV-VIS spectroscopy at its
optimal wavelength for Iodine.

  • Applications

    The Fast Peroxide Analyzer is based on a customized method as an alternative to:

    • ASTM D2340, E299
    • ASTM D3703, D6447
    • ASTM D5799

    The FPA determines both hydrogen peroxides & organic peroxides in:

    • 1,3-Butadiene
    • Alcohols & Ethers
    • Aromatics
    • Aqueous matrices in process streams
    • Aviation turbine fuels
    • Dicyclopentadiene
    • Glycols
    • Isoprene
    • Olefinic hydrocarbon streams
    • Styrenes & Vinyl Pyridines
  • Benefits

    • Safe and automated alternative to traditional wet chemistry analysis methods

    • Wide application range

    • Excellent performance down to ppb level

    • Configuration based on the standard Agilent HPLC modules saves benchspace

    • Fast analysis in less than 5 minutes

    • Closed analysis system prevents air interference issues
  • Configuration

    The DVLS Fast Peroxide Analyzer is based upon the Agilent 1260 Infinity II Liquid Chromatograph (LC) configured with:

    • A Pump DVLS Pressure Station with Vaporizer

    • An AutoSampler

    • An UV-VIS Detector

    • An DVLS Reaction Module 

    • Optional is the use of a Pressure Station to allow a safe handling of the pressurized liquefied gas sample contained in a cylinder.

    The Agilent OpenLab instrument software not only controls the optimal instrument conditions, but also automates the data analysis and reporting.

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