Sunday, May 25, 2008

GC Assay Xylene: o-, m- and p- isomers



Dimethylbenzene:

Separation of Para- and Meta-Xylene on Capillary GC Column


Analysed on PEG 25M and FFAP g.c. columns. using a flame ionisation detector with N,N-dimethyl-. formamide as an internal standard.
Column Temp: 90 ℃, Constant.
Inlet / Detector Temp: 250℃.
Run time: 10 min.
Chromatogram: p- isomer comes first, then m- isomer later, o-isomer last.
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p-Xylene m-Xylene o-Xylene



Adopted from EPA Method 624