Electrospray ionization high-resolution ion mobility spectrometry-mass spectrometry.

  title={Electrospray ionization high-resolution ion mobility spectrometry-mass spectrometry.},
  author={C Wu and William F. Siems and G. Reid Asbury and Herbert Henderson Hill},
  journal={Analytical chemistry},
  volume={70 23},
A hybrid atmospheric pressure ion mobility spectrometer is described which exhibits resolving power approaching the diffusion limit for singly and multiply charged ions (over 200 for the most favorable case). Using an electrospray ionization source and a downstream quadrupole mass spectrometer with electron multiplier as detector, this ESI-IMS-MS instrument demonstrates the potential of IMS for rapid analytical separations with a resolving power similar to liquid chromatography. The first… CONTINUE READING


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