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首页> 外文期刊>Journal of Imaging Science and Technology >Anomalous Effects of Ligand-Silver Halide Reaction on Silver Assisted Thiazolidine Dye Release Instant Imaging System
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Anomalous Effects of Ligand-Silver Halide Reaction on Silver Assisted Thiazolidine Dye Release Instant Imaging System

机译：配体-卤化银反应对银辅助的噻唑烷染料释放即时成像系统的异常影响

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摘要

Silver assisted thiazolidine dye release reactions have been applied in instant silver halide imaging systems. The rate and extent of the release of dye depend on several consecutive reactions. The two main reactions are the dissolution of silver halide by ligand in alkaline solution and the reaction of silver-ligand complex with a thiazolidine dye molecule leading to the release of the dye. The efficiency of dye release at any temperature depends on the relative rates of the two reactions. An anomalous effect was observed at room temperature when the dye release was less with a silver ligand with a higher binding constant than one with lower binding constant. However at elevated temperatures the extent of dye release was greater with the more efficient ligand. Experimental results show that efficient dye release at any temperature requires the thiazolidine dye, which is coated in a film as a solid dispersion, to be in solution prior to its reaction with silver-ligand complex. A single step stopped-flow spectrophoto-metric method has. been developed for predicting the extent of dye released at the final step of the series of reactions with different ligands.
机译：银辅助的噻唑烷染料释放反应已应用于即时卤化银成像系统中。染料释放的速率和程度取决于几个连续的反应。两个主要反应是配体在碱性溶液中溶解卤化银，银-配体配合物与噻唑烷染料分子反应导致染料释放。在任何温度下染料的释放效率取决于两个反应的相对速率。当具有较高结合常数的银配体比具有较低结合常数的银配体的染料释放少时，在室温下观察到异常效应。但是，在较高的温度下，配体越有效，染料释放的程度就越大。实验结果表明，在任何温度下均能有效释放染料，要求噻唑烷染料以固体分散体的形式涂在薄膜中，然后才能与银-配体络合物反应。采用单步停流分光光度法。开发了用于预测在与不同配体的一系列反应的最后步骤中释放的染料程度的试剂盒。

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