This document introduces an improved method for analyzing aromatics in gasoline using Agilent's 6890/5973 GC/MSD system and ChemStation software. The system and software provide a number of enhancements that can be used to validate compliance with government regulations and improve productivity.
The document describes improvements made to the Agilent Technologies 6890/5973 Gas Chromatography/Mass Spectrometry (GC/MS) System and its ChemStation software. These enhancements are specifically designed to refine the analysis of aromatics in gasoline according to ASTM Method D-5769.
Hardware improvements include a high energy dynode electron multiplier and increased scanning speed, while software updates feature easier data entry, automated calibration updates, and expanded help files. The note also outlines specific instrumental parameters, such as temperature programming and split ratios, that allow for faster analysis times (20 minutes) with excellent precision.
The recommended split ratio is 1100 to 1.
The analysis time is 20 minutes.