影像科学与光化学 ›› 2000, Vol. 18 ›› Issue (2): 150-154.DOI: 10.7517/j.issn.1674-0475.2000.02.150

• 研究论文 • 上一篇    下一篇

硫增感的敏化中心和潜影中心的氧化还原性能的研究

史瑶, 赵文芳, 杨新民, 夏培杰   

  1. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1999-09-08 出版日期:2000-05-20 发布日期:2000-05-20
  • 通讯作者: 赵文芳
  • 基金资助:
    国家自然科学基金资助项目(29873054);美国柯达公司资助项目

STUDY ON THE REDOX PROPERTIES OF SULFUR SENSITIVITY CENTERS AND LATENT IMAGE CENTERS

SHI Yao, ZHAO Wen-fang, YANG Xin-min, XIA Pei-jie   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China
  • Received:1999-09-08 Online:2000-05-20 Published:2000-05-20

摘要: 本文采用Reinders的氧化还原缓冲液的方法研究硫敏化的立方体卤化银微晶的敏化中心和潜影中心的氧化还原性能.实验结果表明:1)Reinders的氧化还原缓冲液的方法,不仅可用于研究潜影中心,也可用于研究敏化中心;2)本实验条件下的硫化银敏化中心的氧化还原电位约略负于-220 mV(相对于饱和甘汞电极),潜影中心的氧化还原电位值是介于-220 mV与-190 mV之间(相对于饱和甘汞电极);3)潜影中心的氧化还原活性较敏化中心大得多.

关键词: 硫增感, 氧化还原, 敏化中心, 潜影中心

Abstract: Reinders' redox buffers were used to study the redox properties of sensitivity centers and latent image centers on microcrystals of cubic silver bromide emulsion in this paper. The results showed that: 1) reinders' redox buffers were used to study the redox properties not only for latent image centers but also for sensitivity centers; 2) The redox potential of Ag2S sensitivity centers was less negative than -220 mV with respect to the saturated calomel electrode in our experiment and the redox potential of latent image centers was between -220 mV and -190 mV; 3) The redox activities of latent image centers were much higher than that of sensitivity centers.

Key words: sulfur sensitization, redox, sensitivity centers, latent image centers

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