Evolved Gas-Analysis Of Inorganic-Compounds With A Quadrupole Mass-Spectrometer Coupled To A Thermogravimetric Analyzer

An inexpensive EGA system, based on a quadrupole MS and a standard PC, has been constructed and connected to a commercial thermobalance via a heated capillary. The system has been tested with various inorganic compounds including CaC2O4. H2O, CuSO4. 5H2O, Cu(NH3)4SO4. H2O and [Pt(NH3)5OH]Cl3. H2O. The applicability of the TG-EGA-MS system is discussed.