is the bigger LRI (Linear retention index) or RI (retention index) means bigger concentration or peak area or percentage of peak area for GC MS measurements?
NOOOOO! Each molecule can have a different response to the detector (any detector!). An example would be 2 molecules; one molecule can have 1/2 the response to the detector than the other for the same concentration. Thus, the peaks would have the same height or area but a significantly different concentration!
Retention (= the time that compounds stay in a column!) indices can NOT be related in any ways to their Concentration (=amount!).
> Retention (= the time that compounds stay in a column!) indices can NOT be related in any ways to their Concentration (=amount!).
Except if the column is overloaded, then the retention times shift a little.
Retention Index only shows how long a compound can be retained by the given stationary phase in comparison to a certain standard. It has nothing to do with the concentration of the compound.
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