Envantage DHA GCs

Envantage DHA GCs2017-09-01T22:16:46+00:00

… feature Envantage’s own Dragon DHA software, and are setup and calibrated on an individual basis, not as standard production line instruments. We use actual customer samples to provide sample-specific databases to minimize the number of misidentified components and ensure timely automatic processing of routine samples once the unit is put into service at the customer site. We deliver AND support detailed hydrocarbon analysis bundled analyzers built on the widest variety of manufacturer’s model GCs and data systems, with configurations based upon ASTM, IP, DIN, and customized methods. These methods are often referred to as PONA or PIANO analysis. Reference methods include:

  • D5134
  • D6729
  • D6730
  • D6733
  • CAN/CGSB 3.0 NO. 14.3

These analyzers can be custom configured to suit many different methods and hydrocarbon stream types, including the Dragon DHA Light Ends Analyzer ( D7900 / IP 601) specially designed for analysis of Light Ends in Crude Oil and Condensates. Let us help you configure the right options for your specific detailed hydrocarbon analysis needs.

News You Can Use – Switch to Hydrogen Carrier Gas:

The official ASTM D6730 Method specifies the use of Helium as the carrier gas.  In recent years Helium has become less available, and, as a consequence, more expensive. Switching to the use of Hydrogen as a carrier gas is not only more economical but its chemical properties affect linear velocities in a way that results in the added benefit of shorter analysis run times.

We have posted an article on our blog that was originally written in 2000 by our good friend Neil Johansen. Neil was instrumental in developing the ASTM DHA Methods that we utilize today. In 2000 he took it upon himself to implement hydrogen as the carrier gas and work out the operating conditions necessary to match the DHA component separations obtained using Helium. We have reprinted the entire article on our blog complete with instrument operating conditions and chromatograms. A pdf of the entire article is available for download.

Click here to see the blog post

Click here to download the pdf: Fast_DHA_H2