光開始化学発光系の時間分解化学発光測定

抄録

A time-resolved chemiluminescence detection system has been prepared for the measurement of photoinitiated chemiluminescence (PICL) in the initial period ( <1 s after illumination of excitation light). A nitrogen pulse laser was used as the source of excitation light. Photoinitiated chemiluminescence induced by the pulse laser is measured by a photomultiplier tube, and recorded by a digital osiloscope. The couplings of the photocatalytic reactions of TiO₂ with luminol-CL and bis (2, 4, 6-trichlorophenyl)oxalate (TCP0)-CL have been used for two PICL systems. Time-resolved PICL results show that the CL intensity-time profiles are different in the two PICL systems. The detecting system can be used for the measurement of PICL in the initial period. Its time resolution is ca.1 ms.