C o M e C S - Project

Comet and Meteorite Materials - Studied by Chemometrics of Spectroscopic Data

COSIMA Data - Example

27 mass spectra in the mass range 55.8 - 56.2 Dalton (positive secondary ions), measured partly on a cometary particle and partly on the background. Particle: Dense area.

The mass resolution of about m/Dm 1400 (Dm is the full width at half maximum peak height) does not allow a complete separation of the principally possible CHNO ions of the same nominal mass. Contamination by Si-containing substances makes data evaluation even more complicated.

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