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Abstract

A multi-wavelength spectrofluorometer suitable for operation in laboratory, process control environments and in the field. The unit includes a multi-source flash tube, slits, diffraction grating arrangement(s) and other optics whereby a number of different wavelengths are available for exciting the sample. Also, a slit moving along the tubular axis of a single flash tube may be used. The excitation light is directed onto a sample and the luminescent emitted light from the sample is measured for intensity and wavelength. The resulting 'signature' is compared with stored 'signatures' for identification purposes. A controller with storage, keyboard and display provides interactive operation for the user. Separate memory cards with stored known component signatures and other analysis programs may be inserted into the instrument. Modules for directing the analysis to remote samples and to solid, liquid or gas samples are provided.

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First Claim