Choi, Y., Lee, H. W., Fountain, S. T., and Lubman, D. M., 1994, Direct
chemical-analysis of UV laser-ablation products of organic polymers by using
selective ion monitoring mode in gas-chromatography mass-spectrometry: Journal
of the American Society for Mass Spectrometry, v. 5, no. 2., p. 106-112.

Abstract

Trace quantities of laser ablated organic polymers were analyzed by using
commercial capillary column gas chromatography/mass spectrometry; the
instrument was modified so that the laser ablation products could be introduced
into the capillary column directly and the constituents of each peak in the
chromatogram were identified by using a mass spectrometer. The present study
takes advantage of the selective ion monitoring mode for significantly improving
the sensitivity of the mass spectrometer as a detector, which is critical in analyzing
the trace quantities and confirming the presence or absence of the species of
interest in laser ablated polymers. The initial composition of the laser ablated
polymers was obtained by using an electron impact reflectron time-of-flight mass
spectrometer and the possible structure of the fragments observed in the spectra
was proposed based on the structure of the polymers.

Keywords