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The laser used in this work was the doubled Nd:YAG model No. 1000D of Chromatix and was operated, for the most part, at 532 nm with 100 to 200 mW output. The detection scheme centered around a 100 MHz amplifier-discriminator (PAR/SSR NO. 1120) followed by a $>100$ MHz prescaler (ORTEC No. 9310) and a high-speed gate. Using a 120 nsec laser pulse, a count saturation rate of $\sim 2$ counts per 120 nsec gate was observed. Analysis of fluorescence and ambient light discrimination and of count saturation was found to be consistent with spectra taken with and without the gate applied. Spectra recorded using laser peak powers of 250 W at 3000 pulses/sec versus 1 to 3 kW at $\sim 700$ pulses/sec show that slightly higher signal-to-noise ratios tend to occur with the high peak power case providing that count saturation does not occur. Spectra of nylon, acrylic, benzene with acridine orange, doped $SrF2$ crystal, and various forms of aluminum oxide and hydroxide were studied. In addition, the spectrum of benzene adsorbed onto the oxide or the hydroxide of aluminum was found to be quite different from the spectrum of liquid benzene. A preliminary analysis of this ""adsorbed"" spectrum was found to correlate with a surface site model of the benzene molecule attached to the adsorbent.