SOLID-SUBSTRATE AND MICELLAR-STABILIZED ROOM-TEMPERATURE PHOSPHORESCENCE OF 2 ANILINONAPHTHALENESULFONATES

Room temperature phosphorimetric studies were made on two important fl uorescent probes: 8-anilinonaphthalene-1-sulfonate (ANS) and 6-toluidi nylnaphthalene-2-sulfonate (TNS). The two dyes gave proper RTP signals using solid-substrate room temperature phosphorimetry (SS-RTP) and mi cellar-stabilized room temperature phosphorimetry (MS-RTP) under the e xperimental conditions described in this article. The MS-RTP signals a re observed on filter paper using thallium(I) nitrate as a heavy atom. The MS-RTP emission of the compounds is also measurable in sodium dod ecyl sulfate (SDS) micelles by applying sodium sulfite as an oxygen sc avenger and thallium(I) nitrate as a heavy atom. Light irradiation for a certain period of time could increase the RTP intensities of ANS an d TNS solutions. Our results provide some useful information for the R TP studies of derivatized macromolecules using ANS or TNS as phosphore scent probes.