Discrete Component GC/FTIR Systems:
![]() The #26G system is designed for Capillary GC/FTIR. It requires an FTIR running automatic GC/IR software and fitted with an MCT (A) detector. The transfer line connecting the GC to the light-pipe is a double line, with a return leg bringing the GC effluent back to the GC for normal GC detection after the light-pipe. A very highly inert sample pathway is formed with this system. Really high performance packed column or megabore capillary GC/FTIR is provided by the #36G system. This light-pipe requires an MCT (B) detector. Fully automatic GC/IR software is not essential. The FTIR can be manually triggered when the GC peak is observed by a GC detector operating between the end of the column and the light-pipe. In addition, the transfer line supplied contains a special by-pass valve which allows the GC peak to be "parked" in the light-pipe for increased scan times. This facility substantially improves the quality of spectra for trace components. For users with standard DTGS detectors, the #66G system provides packed column or megabore capillary GC/FTIR. The system is essentially the same as that described for the #36G above, including the by-pass valve feature. The requirement for high scan speeds is removed and even the least sophisticated FTIR instruments can be used. The availability of GC/FTIR for such low cost instruments is not as widely known as it should be. With low cost instruments, installing GC/FTIR gives tremendous performance for cost. Every FTIR is capable of really worthwhile GC/FTIR with an AABSPEC system. The choice is yours! |
FURTHER TECHNICAL INFORMATION: Please ask for your copy of "Capillary GC/FTIR" re-printed from an Application Note. |
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