Abstract
Several polymer-salt mixtures were examined as solid surfaces for room-temperature phosphorescence (RTP). A variety of hydroxyl-substituted aromatic compounds were observed to give RTP when absorbed on poly(acrylic acid) (PAA)-sodium halide mixtures and filter paper. A solid-sample holding plate was used with a spectrodensitometer for solid surface luminescence detection of components on powder and filter paper adsorbents. RTP analytical data, including linear ranges of calibration curves and limits of detection for several compounds, were compared for 1% PAA-NaBr powder and filter paper.
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