“…The detection limits obtained at room temperature in a micellar environment were comparable to those obtained by the conventional low temperature phosphorimetry and by the technique of immobilizing molecules on solid surfaces. In the latter cases, heavy atoms are usually added to enhance the phosphorescence signal (3,4). Effects of the external heavy atoms on the detection limits and lifetimes at 77 K were investigated and their nature of interaction was discussed by Wlnefordner et al (5,6).…”