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DVLS DHA Analyzers

Da Vinci Laboratory Solutions offers various automated solutions for a Detailed Hydrocarbon Analysis (DHA) to determine the individual hydrocarbon components in light petroleum streams such as naphtha, reformate and gasoline.

Detailed hydrocarbon analysis

All DHA solutions comply with the standard ASTM test methods for a detailed hydrocarbon analysis:  

  • ASTM D5134 
  • ASTM D6729
  • ASTM D6730
  • ASTM D6733
  • ASTM D7900
  • Applications

    The DHA Analyzers comply with the following  ASTM methods:

    Sample Scope

    Sample Range (% mass)

    Determine Boiling Range

    Test Method

    Olefin-free (<2 % liquid volume) liquid hydrocarbon mix-tures including virgin naphtha, reformates and alkylates


    Up to 250°C

    ASTM D5134

    Spark-ignition engine fuel blends containing oxygenates


    Up to 225°C

    ASTM D6729

    Naphtha, reformates and alkylates

    Spark-ignition engine fuel blends containing oxygenates


    Up to 225°C

    ASTM D6730

    Naphtha, reformates and alkylates

    Spark-ignition engine fuel blends containing oxygenates


    Up to 225°C

    ASTM D6733

    Naphtha, reformates and alkylates

    Stabilized crude oil


    Up to 174°C

    ASTM D7900

  • Benefits

    • High Quality GC Hardware - All DHA Analyzers are based upon the Agilent GC configured with dedicated columns, injection ports and detectors. 
    • ASTM Compliance - The DHA analyzers comply with the ASTM test methods D5134, D6729, D6730, D6733 and D7900 to determine hydrocarbons and oxygenates in light petroleum streams. 
    • Proven software platform - The analyzers include the PetroReporter software for data processing and reporting of the properties of petroleum streams. PetroReporter is successfully used by a global installed base of leading oil refineries
    • Universal setup - Analyst could also use PetroReporter to process and report data for SimDist, FAME and Gas Calculation applications in addition to DHA. They can use the universal software for various applications
    • High level of Automation - PetroReporter automates the settings per sample type to provide a correct sample identification. User-friendly editors can be used to customize your settings
    • Accurate characterization of crude oils - To improve the boiling point characterization of crude oils the DVLS PetroReporter merges High Temp SimDist with the DHA data. 
    • Application Guarantee - Each analyzer is tested according to the in-house testing procedures to check the system performance and to verify the analyzer specification by a reference sample test. Factory Acceptance Test will be scheduled upon request
  • Configuration

    The DHA configuration is based on the Agilent Gas Chromatograph configured for a test method with the required hardware and software components:

    • Flame Ionization Detector (FID) with high scanning rate
    • Split/Splitless injection port to split the sample for maximum detection and load ability of the column
    • Cryogenic mode (N2 or CO2)
    • 50 or 100 meter DHA analytical column
    • Calibration, reference or quality control samples 
    • PetroReporter software

    DVLS PetroReporter DHAPetroReporter is a universal software tool that automates data processing of petroleum samples. After data processing PetroReporter creates the required DHA reports. Some examples are: Chromatogram plot of the peak labels over a user selectable time interval, Individual hydrocarbons & group types, Oxygenates, PIONA report, TBP distribution, Properties summary of Bromine Number, Gross and Nett Heat of Combustion of liquid, Reid Vapor Pressure, RON and MON values, Specific Gravity. 

  • Downloads

  • Training

    Would you like to learn more on SimDist and/or DHA analyses being an analyst within a petrochemical GC laboratory? Attend (one of) the training courses Da Vinci Laboratory Solutions offers. You can select a DHA training course where we will explain the basic principles to you as well as the maintenance and troubleshooting. The PetroReporter software is used for reporting.

    During this one-day course the following topics are explained:

    • Basic principles of DHA analysis
    • Used Inlets, columns and detectors
    • Maintenance
    • Recognize problems and solve them in a structured manner
    • Use of Petro Reporter software for the various reports and calculations

    Read more on the DHA training course.

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