LUMINESCENCE PROPERTIES AND ANALYTICAL FIGURES OF MERITS OF BENZO(A)PYRENE GUANOSINE ADDUCT ADSORBED ON ALPHA-CYCLODEXTRIN/NACL, BETA-CYCLODEXTRIN/NACL, AND GAMMA-CYCLODEXTRIN/NACL, AND TREHALOSE/NACL SOLID MATRICES

Several cyclodextrin/NaCl and trehalose/NaCl mixtures were investigated as solid matrices for obtaining room-temperature luminescence from a benzo(a)pyrene (B(a)P) guanosine adduct. Room-temperature fluorescence (RTF) and room-temperature phosphorescence (RTP) intensities from the B(a)P-guanosine adduct were compared for different solid matrices. These results showed that 25% trehalose/NaCl, 1% alpha-cyclodextrin/NaCl, and 1% gamma-cyclodextrin/NaCl solid matrices yielded strong fluorescence signals and moderately strong phosphorescence signals at room temperature from the B(a)P-guanosine adduct. In addition, the luminescence properties of pyrene, guanosine, guanosine 3'-monophosphate free acid and guanosine 3'-monophosphate sodium salt on 1% alpha-, beta-, and gamma- cyclodextrin/NaCl solid matrices were obtained.