On‐line coupled HPLC‐HRGC: A powerful tool for vapor phase FTIR analysis (LC‐GC‐FTIR)

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Abstract
The design of an on‐line LC‐GC‐FTIR system using an on‐column interface and partially concurrent solvent evaporation with early vapor exit is described. The integration of LC‐GC coupling into vapor phase FTIR analysis enables problems of sensitivity encountered with HRGC‐FTIR detection to be over‐come. The applicability of the method is demonstrated by the identification and determination of citropten and bergapten in bergamot oil.

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