用原子吸收法测定银,目前国内现行的方法,均在盐酸-硝酸介质或氨性介质中进行。生产实践证明,前者分析结果及回收率都系统偏高;后者分析结果系统偏低。酸性介质偏高的原因,可能是由于分子吸收造成的;氨性介质偏低的原因,是由于氨性溶液中的氢氧化物沉淀对银离子的吸附作用引起的。此外,这 Determination of silver by atomic absorption method, the current domestic methods are in hydrochloric acid - nitric acid medium or ammonia medium. Production practice has proved that the former analysis results and recovery rates are high system; the latter analysis system is low. The reason for the high acidic medium may be due to molecular absorption caused; ammonia medium low reason is due to the ammonia solution in the precipitation of silver ions caused by adsorption. In addition, this