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1 引言 金作为感光乳剂的增感剂已有多年的历史,但将钯应用于感光胶片则是近十余年的事。国外某些著名感光胶片生产厂家,已成功地将钯增感技术用于某些片种的生产过程。为了提高国产胶片的质量,我们对胶片中痕量贵金属的分离分析方法,作了一些探索和研究。本文采用聚四氟乙烯密封溶样罐酸解胶片乳剂膜,丁二酮肟—氯仿溶液萃取钯,石墨炉原子吸收法测定。方法简便、可靠,优于国外文献报道方法,回收率高于90％,相对标准偏差<10％。
1 Introduction Gold as a photosensitizer sensitizer has many years of history, but the palladium used in photographic film is nearly a dozen years. Some well-known foreign manufacturers of photosensitive film, palladium sensitization has been successfully used in some types of film production process. In order to improve the quality of domestic film, we made some exploration and research on the separation and analysis of trace precious metals in film. In this paper, polytetrafluoroethylene sealed dissolving tank acid film emulsion film, dimethylglyoxime - chloroform extraction of palladium, graphite furnace atomic absorption spectrometry. The method is simple, reliable and superior to the methods reported in foreign literature. The recovery rate is higher than 90% and the relative standard deviation <10%.