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DVLS DHA Analyzer

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

Fast Front-End DHA Analyzer

The ASTM D7900 method uses Helium as the carrier gas and has a total analysis time of approximately 133 minutes. Da Vinci Laboratory Solutions has developed an alternative approach, complying with ASTM D7900: the Da Vinci LS Fast FE DHA analyzer. Instead of Helium, this system uses Hydrogen as the carrier gas and reduces the total analysis time to 35 minutes. The Fast FE DHA is equipped with a Da Vinci LS Pre-Fractionator inlet to separate light components (up to C9) from heavier compounds prior to their introduction onto the GC column.