SI-PIONA is a method for detailed group type analysis of gasoline and petroleum naphtha containing hydrocarbons with boiling points between -42 °C (propane) and 216 °C (n-dodecane). The gasoline compounds are divided into 94 sub-groups. In addition to these hydrocarbon groups, the method includes six oxygenates (Methanol, Ethanol, tert-Butanol, tert-Butylmethylether, tert-Butylethylether and tert-Amylmethylether).

The main elements of SI-PIONA are:
• A MS library containing approximately 1100 mass spectra of the different compounds present in gasoline/naphtha.
• A RI database of approximately 400 compounds for correct isomer identification.
• Software for automated peak identification and quantitation.
• Software for reporting the main PIONA groups.

The SI-PIONA program can be applied to quadrupole and magnetic sector instruments. Direct access of data files from Finnigan MAT, Hewlett-Packard, VG, MicroMass and Fison instruments is included in the software.

A demo version will soon be available. Please contact Kjell Urdal if you are interested in the free download.