摘要
地质样品经王水溶解后,在一定浓度的王水和盐酸介质下,用三苯基膦醋酸纤维富集银,用20g/L硫脲解脱,采用火焰原子吸收法测定。实验表明,银的吸附率在98%以上。该方法对地质样品的检测限为0.002μg/g。
The geological samples is dissolved in aqua reiga first. In a certain concentration of aqua reiga and hydrochloric acid solution, silver is absorbed on triphenyl phosphine acetic cellulose. The absorbed silver is eluted with 20g/L thiourea solution and then determined by FAAS. Recovery of silver is more than 98%. The detection limit of the method for geological samples is 0. 002μg/g.
出处
《黄金》
CAS
北大核心
2009年第6期57-58,共2页
Gold
关键词
三苯基膦
醋酸纤维
银
分离富集
火焰原子吸收法
triphenyl phosphine （TPP）
acetic cellulose
silver
separation and perconcentration
Flame Atomic Absorption Spectrometry （FAAS）
