| 摘要 |
Provided is an improved sensitization method for photographic element. The photographic element comprises a support with at least one hydrophilic colloid layer coated thereon. The hydrophilic colloid layer comprises silver halide grains which are chemically sensitized with at least one compound represented by Formula 1: (OCH)2R<1)<LHSO3)2 and at least one selenium compound. In formula 1, R<1> represents an alkyl of 1-8 carbons; and L represents and alkali metal. The selenium compound is chosen from a group consisting of R<2>SeCN, (R<3>)3PSe and ((R<4>)2NCO)2Se wherein R<2> represents an alkyl of 1 to 8 carbons, or an alkali metal atom; R<3> independently represents an aryl of 6 to 10 carbons or an alkyl of 1 to 8 carbons; and R<4> independently represents an aryl of 6 to 10 carbons or an alkyl of 1 to 8 carbons. |
