We have below two chromatograms (130 peaks > 0.01 %) sample / reference :

Lavandin “Grosso”

 

The quantification of the components of a complex mixture in gaseous or liquid chromatography is difficult because of the variations and the fluctuations of retention time. The use of a (cross reference) allows to keep a constant precision on the positions of every compounds, and so allows a precise and reliable quantification.