Published Dan Wispinski on March 25, 2020

2 responses to “Olefins and The Flinstones: What do they have in common?”


    GC-VUV is an extremely tool to analyze complex HC samples.
    However, GC is not the best technique to analyze any TOTAL. As we need to separate, identify ,calibrate, quantify and sum several (dozen) compounds, total deviation may be high.
    To replace D1319, I think the best technique is HPLC. When I worked in INTEVEP(Venezuela) we developed an HPLC method, to analyze SOA(saturates, olefins, aromatics), with very good correlation against ASTM round robin samples.

  2. Dan Wispinski says:

    Hi Raul,
    Thank you for your comments, I have a few follow up questions:
    Could you explain more about the technique that you developed? Are you referring to gasoline or are they confused with distillates? I am curious because I don’t know of HPLC methods that can separate olefins,

    Would you like me to further explain about hydrocarbon classes that can be done by VUV because of their different spectral responses for hydrocarbon classes, D8071 focuses on hydrocarbon type with some speciation. Also, to my knowledge, I don’t think that HPLC can differentiate olefin type – conjugated vs. Non-conjugated, cyclic.

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