Leibrand, R
1991
Examination of Coal by Combined Thermogravimetry/Infrared Spectroscopy/Mass Spectrometry
Buchanan, R.M.; Holbrook, K.M.; Meuzelaar, H.L.C. and Leibrand, R.
IRD Application Brief, Hewlett Packard, 23:5091-2022E, 1991.
Combined TG/IR and, to some extent, TG/MS techniques are finding increased application for structure/reactivity studies as well as for characterization and quality control of synthetic polymers, natural products, and fossil fuels. Unfortunately, the high cost of commercially available integrated TG/IR and TG/MS (let alone TG/IR/MS) systems has kept these techniques well out of reach for most analytical laboratories.
The advent of low cost bench-top FTIR and MS systems, however, has opened up the possibility of designing and assembling an affordable combined TG/FTIR/MS system. Such a system, developed at the University of Utah, Center for Micro Analysis, consists of a standard HP GC/IRD/MSD system utilizing an HP 5890 gas chromatograph, an HP 5965A IRD, and an HP 5971A MSD coupled to a Perkin Elmer Model 7 TG with a high temperature (1600? K max.) furnace. A specially constructed heated transfer line assembly allows direct coupling of the TG system to the GC injection port. The GC oven acts as a convenient heated coupling and flow distribution module. In this experiment no chromatography is performed with only sample transfer from the TG directly to the detectors.
Leibrand, R
1991
Examination of Coal by Combined Thermogravimetry/Infrared Spectroscopy/Mass Spectrometry
Buchanan, R.M.; Holbrook, K.M.; Meuzelaar, H.L.C. and Leibrand, R.
IRD Application Brief, Hewlett Packard, 23:5091-2022E, 1991.
Combined TG/IR and, to some extent, TG/MS techniques are finding increased application for structure/reactivity studies as well as for characterization and quality control of synthetic polymers, natural products, and fossil fuels. Unfortunately, the high cost of commercially available integrated TG/IR and TG/MS (let alone TG/IR/MS) systems has kept these techniques well out of reach for most analytical laboratories.
The advent of low cost bench-top FTIR and MS systems, however, has opened up the possibility of designing and assembling an affordable combined TG/FTIR/MS system. Such a system, developed at the University of Utah, Center for Micro Analysis, consists of a standard HP GC/IRD/MSD system utilizing an HP 5890 gas chromatograph, an HP 5965A IRD, and an HP 5971A MSD coupled to a Perkin Elmer Model 7 TG with a high temperature (1600? K max.) furnace. A specially constructed heated transfer line assembly allows direct coupling of the TG system to the GC injection port. The GC oven acts as a convenient heated coupling and flow distribution module. In this experiment no chromatography is performed with only sample transfer from the TG directly to the detectors.