氰化液中金的测定,国内普遍采用的方法是王水分解,活性炭分离富集-氢醌容量法或光度法测定。该方法虽有设备简单,成本低等优点,但同时存在操作繁琐,周期长,对低含量金测定误差较大等显著缺点。为此我们经过反复试验提出在盐酸与硝酸混合液中,于通风橱中加热除出氢氰酸,再加入KI使溶液中的Au~+与I~-形成可被聚酰胺树脂 Determination of gold cyanide solution, the method commonly used in China is the decomposition of aqua regia, activated carbon separation and enrichment - hydroquinone volumetric method or spectrophotometric determination. Although this method has the advantages of simple equipment and low cost, at the same time, there are some obvious shortcomings such as cumbersome operation, long period and large error in determination of low content of gold. For this reason, after repeated experiments, we proposed that hydrochloric acid and nitric acid mixture, heated in a fume hood to remove hydrocyanic acid, and then add KI solution Au ~ + and I ~ - formed by the polyamide resin