硫氰酸盐光度法测定铜矿中的钨

The Discussion of the Tungsten Determination with the Sulfocyanate Luminosity in the Copper Mine

在酸性介质中硫氰酸盐的存在下,用还原剂还原成黄色络合物,波长在404nm最灵敏,钨的含量在0～1.50%范围内服从朗伯-比尔定律,选择性好。该方法适用于矿石中低品位钨的测定。

Under the existence of sulfocyanate in the acidic property mediu, by the reduction to the yellow complex, the wave-length is the most intelligent in 404nm and the content of the tungsten at 0-1.50% scopes which conforms to the Beer＇s law has a good selectivity. The method is applicable to the determination of the low personal status tungsten in the mineral stone.