Development and applications of a new IR-radiation heating in thermal desorption mass spectrometry TDMS

 An infra-red radiation heating was developed for applications in thermal desorption mass spectrometry (TDMS), avoiding disadvantages of the various types of sample heatings used so far. In a first application D₂-desorption profiles were determined from deuterium doped vanadium samples. Thereby a linear relationship could be found between the amount of detected deuterium and known D-concentrations. D₂-desorption profiles from D doped Si showed 2 maxima corresponding to different desorption processes. In another application characteristic TD mass spectra were obtained for a solvent agent of an adhesive. The further investigation of the desorption behaviour of a specific fragment yielded a relationship between the detected amount of this species and the adhesive strengths of polycarbonate foils. Received: 19 September 1996/Revised: 9 January 1997/Accepted: 14 January 1997