CHROMATOGRAPHY, Vol. 27 (2006), No. 2, pp. 49-55
Focussing Review
Development of a Precise Method for the Quantitative Analysis of Hydrocarbons Using Post−Column Reaction Capillary Gas Chromatography with Flame Ionization Detection
Takuro Watanabe1*, Kenji Kato1, Nobuhiro Matsumoto1, and Tsuneaki Maeda2
1 Organic Standards Section, Organic Analytical Chemistry Division, National Metrology Institute of Japan (NMIJ),
National Institute of Advanced Industrial Science and Technology (AIST)
AIST Tsukuba Central 3, 1−1−1, Umezono, Tsukuba, Ibaraki 305−8563, JAPAN
2 National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
AIST Tsukuba Central 3, 1−1−1, Umezono, Tsukuba, Ibaraki 305−8563, JAPAN
Abstract:
In a gas chromatograph with a flame ionization detector (GC/FID) measurement, standard materials for each target compound are essential for
quantitative analysis. In order to decrease the number of required calibration standards, a post−column reaction GC/FID system was developed.
In this system, two micro−reactors were attached to a capillary GC/FID system in order to convert the target compounds into methane.
High precision sample gas mixtures and solutions were prepared by gravimetric methods and used to perform accurate evaluations of the developed
system. Because all target compounds were converted to methane, quantitative analysis of the samples on the developed system could
be carried out by using any of the compounds as an internal standard. The results showed excellent agreement with the prepared concentrations
and analytical values. These results indicated that this post−column reaction GC/FID system was a useful method for the precise quantitative
analysis of carbon monoxide, carbon dioxide, and hydrocarbons.
Keywords:
post−column reaction, micro−reactor, oxidation, reduction, hydrocarbon, quantitative analysis, GC/FID, standard material.
