CAJ | 학술논문

由于氰化液体的特殊性，常用的分析方法都不能获得理想的回收率，方法的精密度不高，影响了对工艺指标的控制，并且碱性氰化液体会对仪器造成很大程度的腐蚀，降低仪器的使用寿命及稳定性，增加了工作成本。通过将高品位氰化液体酸化，在一定浓度的王水介质中，用经有机溶剂浸泡过的醋酸纤维吸附富集溶液中的金、银，再用20 g/L的硫脲溶液在水浴加热条件下解吸，采用ICP-AES测定硫脲介质下的金、银，金、银的回收率为98.5%～100.5%，方法的检出限金为0.0021，银为0.0030。
유우청화액체적특수성，상용적분석방법도불능획득이상적회수솔，방법적정밀도불고，영향료대공예지표적공제，병차감성청화액체회대의기조성흔대정도적부식，강저의기적사용수명급은정성，증가료공작성본。통과장고품위청화액체산화，재일정농도적왕수개질중，용경유궤용제침포과적작산섬유흡부부집용액중적금、은，재용20 g/L적류뇨용액재수욕가열조건하해흡，채용ICP-AES측정류뇨개질하적금、은，금、은적회수솔위98.5%～100.5%，방법적검출한금위0.0021，은위0.0030。
Because of the particularity of the cyanide liquid,the frequently-used analysis methods can’t achieve an ideal recovery rate of gold and silver.The lower analysis precision of the methods affected the controlling of the process indicators.At the same time,Alkaline cyanide liquid caused a severe corrosion for the instrument, which reduced the equipment life and stability and increased the operating costs.By acidified the high-grade liquid cyanide,using acetate fiber which soaked by organic solvents enriched gold and silver in the solution at the media of a certain concentration aqua regia,and then desorbed them using 20 g/L of thiourea solution in a water bath heating.Finally,the recovery rate of the gold and silver were analyzed by ICP-AES in thiourea solutions which achieved 98.5%~100.5%.The detection limit of the method is 0.0021 for gold and 0.0030 for silver.