摘要
本文利用吸附于Ag晶体微粒表面的罗丹明B分子的荧光强度随时间发生强烈淬灭效应研究了感光材料AgBr与显影材料对甲胺基酚硫酸盐、对苯二酚光引发氧化还原反应的动力学过程。发现罗丹明B分子在571.2nm处荧光峰强度随时间的变化与AgBr溶胶曝光时间有关,并与显影剂的性能有关。对甲胺基酚硫酸盐使AgBr溶胶中罗丹明B的荧光在约3s的曝光时间内迅速淬灭;对苯二酚使罗丹明B的荧光在AgBr溶胶中经约5min的曝光时间才有明显的淬灭趋势。相应的光吸收研究也表明对苯二酚比对甲胺基酚硫酸盐在感光显影过程中的作用要缓慢得多,从而探讨了应用SERS技术及其伴随效应研究和监测感光及显影材料感光显影全过程的可行性。
The oxido-reduction dynamic process of developing agents p-MT and HD to AgBr sol was investigated and recorde by fluenscence quenching effect of Rhodamine B (Rh B) adsorbed on reduced silver crystal particles. It was found that the change process of fluorescence intensity of Rh B at 571.2nm was related to the exposing time of AgBr and to the characteristics of developing agents. The feasibility of using the fluorescence quenching effect of Rh B adsorbed on reduced silver particles to record the light sensitivity and developing process was discussed.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1996年第2期100-105,共6页
Spectroscopy and Spectral Analysis
基金
北京市自然科学基金
关键词
荧光淬灭
拉曼散射
对苯二酚
感光
显影
溴化银
Fluorescence quenching, Surface enhanced Raman scattering (SERS),p-methylaminophenolsulfate, Hydroquinone