Feasibility of Quantitative UV Resonance Raman Spectroscopy with a KrF Excimer Laser

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Abstract:

The feasibility of quantitative resonance Raman spectroscopy with a KrF excimer laser providing primary radiation at 249 nm has been examined. The instrumentation is described, and results are reported for measurements with a photomultiplier detector and scanning monochromator. Considerations affecting the success of the internal standardization are described. A least-squares fitting procedure is employed for quantifying the overlapped analyte and internal standard spectral lines. Instrumental detection limits of 2.2, 1.2, and 1.0 mg/L are reported for anthracene, 9-methylanthracene, and 2-methylanthracene, respectively, for spectra obtained with 120 laser pulses per step. Detection limits in the low ppb range are projected for a system employing an intensified diode array detector.

Keywords: Anthracene; Excimer laser; Raman; UV resonance

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702874449002

Affiliations: Department of Chemistry, Florida State University, Tallahassee, Florida 32306-3006

Publication date: March 1, 1987

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