影像科学与光化学 ›› 1983, Vol. 1 ›› Issue (1): 9-13.DOI: 10.7517/j.issn.1674-0475.1983.01.9

• 研究论文 • 上一篇    下一篇

感光乳剂敏化中心的平衡电极电势在化学成熟过程中的变化

曾繁杰, 刘淑卿   

  1. 中国科学院感光化学研究所
  • 收稿日期:1982-01-30 出版日期:1983-01-23 发布日期:1983-01-23

VARIATIONS OF EQUILIBRIUM ELECTRODE POTENTIAL OFSENSITIVITY CENTRES IN PHOTOGRAPHIC EMULSIONSDURING CHEMICAL RIPENING

ZENG FAN-JIE, LIU SHU-QING   

  1. Institute of Photographic Chemistry, Aeademia Sinioa
  • Received:1982-01-30 Online:1983-01-23 Published:1983-01-23

摘要: 本文用改进的Reinders方法研究了硫、金和还原敏化的感光乳剂在化学成熟过程中敏化中心平衡电极电势的变化,并对这些感光乳剂层内敏化中心的抗氧化性进行了比较研究。 实验结果表明:在化学成熟过程中,敏化中心的平衡电极电势的变化与感光层光敏度的变化趋势极为相似。金敏化乳剂中,在化学成熟最佳时生成的敏化中心比成熟初期生成的敏化中心不易氧化。还原敏化产生的敏化中心较稳定。文中根据Чибисов的化学敏化理论对实验结果进行了讨论。

Abstract: The variations of equilibrium electrode potential of sensitivity centres in photographic emulsions with sulfur, gold- and reduction sensitization during chemical ripening were investigated.A parallelism was revealed between the variation of equilibrium electrode potential and that of light sensitivity with chemical ripening time.It was found that the sensitivity centres at optimum ripening time of gold-sensitized emulsion are less liable to oxidation than those formed at earlier stages of sensitization. This was attributed to reduction of gold ions to gold atoms in chemical ripening process in support of Chibissov’s theory of chemical sensitizatiou.