ESI Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (ESI-FT-ICR-MS): A Rapid High-Resolution Analytical Method for Combinatorial Compound Libraries.

The direct determination of the elemental compositions of the components of compound collections from combinatorial chemistry is achieved by ESI-FT-ICR mass spectrometry. Coupling with HPLC opens up a new dimension in high-resolution, informative analysis. The improved resolution of ESI-FT-ICR mass spectrometry in comparison to quadrupole mass spectrometry in the measurement of a compound obtained by solid-phase synthesis is illustrated.

FT-IR Mapping-A New Tool for Spatially Resolved Characterization of Polymer-Bound Combinatorial Compound Libraries with IR Microscopy.

In the search for selective receptors, a promising approach is provided by immobilization of cyclopeptides on sensor surfaces (see picture) and subsequent detection of low molecular weight analytes with reflectometric interference spectroscopy (RIfS). Together with combinatorial chemistry, this innovative method offers a great potential for applications as sensors.