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A liquid chromatograph-mass spectrometer system has been developed for application to analyses of molecules of extremely low volatility. This LC-MS system uses oxy-hydrogen flames to rapidly vaporize the total LC effluent and molecular and particle beam techniques to efficiently transfer the sample to the ionization source of the mass spectrometer. The instrument is comparable in cost, complexity, and performance to a combined gas chromatograph-mass spectrometer (GC-MS) but extends the capabilities of combined chromatograph-mass spectrometry to a broad range of compounds not previously accessible.

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