HIGH-RESOLUTION INDUCTIVELY-COUPLED PLASMA FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRY

Initial results obtained by incorporation of an inductively coupled pl asma (ICP) ion source with a Fourier transform ion cyclotron resonance (FTICR) mass spectrometer are reported, along with spectra which demo nstrate submilligram-per-liter detection limits and high mass resoluti on (mass resolving power, m/Delta m(10%V) = 7000-10 000), Also shown i s an ICP-FTICR spectrum with ultrahigh resolving power (m/Delta m(10%V ) = 88 000). Both instrumental configurations used to conduct this wor k, one at the University of Florida, and the other at the National Hig h Magnetic Field Laboratory, are described. Also included are concise results from a computer aided interference study designed to enumerate mass spectral interferences requiring mass resolving power in excess of 10 000.