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A Curie-point direct injection probe to be coupled to a mass spectrometer was developed. Its flash heating, wide range temperatures (160~ l.040°C), reproducible temperature (± 1°C) and direct connection to the ion source of a mass spectrometer were effectively applied to the polymer analysis. Pyrolysis-mass spectrometry by use of this device enabled the discrimination between a copolymer and the corresponding blended polymer of {poly(styrene) and poly(fluorostyrene)}, because of the decreased secondary reactions among the pyrolyzates, when compared with pyrolysis gas chromatography (Py-GC). As compared with Py-GC, the new technique can elute larger pyrolyzates, only within a few minutes, which provide compositional and structural information of the polymer samples. The rapid analysis of an additive in a polymer is also reported in this paper.

A New Curie-point Direct Injection Probe for Mass Spectrometry. 1. Sample Injection Methods.