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J Lauterbach

Publications and source records attributed to J Lauterbach.

5 recordsLinked to original sources
PubMed2000

Chemically sensitive high throughput parallel analysis of solid phase supported library members

This paper introduces Fourier transform infrared imaging as a powerful spectroscopic tool for the parallel identification of members of resin-supported combinatorial libraries. This technique combines the chemical specificity and high sensitivity of FTIR with the ability to rapidly analyze multiple supported resin beads simultaneously. It is shown here that the chemical identity of ligands on a variety of supported resin beads can be identified in a single experiment without destroying or otherwise perturbing the system.

Journal Article↗
PubMed2000

Ellipsomicroscopy for surface imaging: contrast mechanism, enhancement, and application to CO oxidation on Pt(110).

Ellipsomicroscopy for surface imaging (EMSI) is a powerful new tool for studying spatiotemporal adsorbate pattern formation on catalyst surfaces. It is a surface-sensitive technique that is able to measure submonolayer coverage of adsorbates. The imaging of the sample's surface achieves a spatial sensitivity, making it possible to measure nonuniformity of adsorbate coverage. The image contrast, however, depends strongly on the setup of the instrument. The optimum setup can be calculated from the ellipsometric properties of the catalyst/adsorbate system and the intrinsic parameters of the EMSI instrument. Optimizing the setup of the EMSI instrument permitted enhancement of the image contrast over the previous setup. As a result, new features in CO oxidation on Pt(110) were discovered.

Carbon Monoxide↗