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卤化银感光材料面世已有一百余年的历史,其基本原材料之一的硝酸银的纯度,对感光材料的感光特性有着不容忽视的影响。国外各著名感光材料厂家对硝酸银中杂质的含量,都有严格的内控标准。但分析方法一般不公开发表。文献上偶见到少量工作,一般也非感光材料厂家的实用技术。
Silver halide photographic materials have been available for more than one hundred years. The purity of silver nitrate, one of the basic raw materials, has an invaluable influence on the photographic properties of photographic materials. Foreign well-known manufacturers of photosensitive materials on the content of silver nitrate impurities, have strict internal control standards. However, analytical methods are generally not published. Occasionally see a small amount of work in the literature, the general non-photosensitive material manufacturers of practical technology.