摘要
硝酸银是感光材料工业的基本原材料之一,其纯度对感光材料的质量有不容忽视的影响。铅和铋是公认的减感元素,弄清它们在硝酸银中的含量,并设法在生产过程中将它们控制在一定的范围以内,对感光工业是极为重要的。国外各大感光胶片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。
A method for determination of trace quantities of lead and bismuth in silver nitrate was described. Lead and bismuth were separated from precipitated AgCl with NH4CI as a precipitant and EDTA as a complexing agent. The method is simple and convenient. The recoveries are up to more than 90%.
出处
《感光科学与光化学》
CSCD
1991年第1期71-75,共5页
Photographic Science and Photochemistry
关键词
硝酸银
感光材料
铅
铋
原子吸收法
trace analysis, photographic materials, silver nitrate, lead, bismuth
