This application note highlights the speed and precision of the Agilent 8850 single-channel GC applied to both a conventional separation (39 minutes) and fast separation (6.05 minutes) of common aromatic contaminants described in ASTM D7504. Also shown is the use of the Agilent method translator software to convert the conventional method into the fast method for users interested in exploring additional variations of ASTM D7504. The precision of both methods was evaluated using three different purchased standard mixtures analyzed over 20 consecutive replicate injections each. The system yielded excellent precision for both methods with calculated concentration RSDs below 1.0% for all non-trace-level compounds. The fast method yielded a benzene peak in the p-xylene standard with an average (n = 20) RMS signal-to-noise ratio (S/N) of 60 at a concentration of 14 ppmw, indicating an approximate benzene MDL of less than 1.0 ppmw.
Download this application note to:
- Discover how the Agilent 8850 GC is shown to be robust and precise when applied to both a conventional approach and a high-speed adaptation of ASTM D7504
- Learn how GC intelligence features on the Agilent 8850 GC facilitate enhanced remote monitoring and diagnostics of the instrument
- Understand the benefits of the Early Maintenance Feedback counters that help maximize instrument uptime
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