冶炼污酸中铼的分离测定方法

Separation and Determination Method of Rhenium in Smelter Waste Acid

采用酒石酸络合掩蔽干扰离子,过氧化氢氧化冶炼污酸中的低价铼为高价铼(Ⅶ),在5 mol/L氢氧化钠的介质中以丙酮萃取,ICP-AES进行测定。该方法消除了污酸中基体效应和大量干扰离子的影响,对该方法进行准确度,精密度,检出限及加标回收实验,精密度达到0.90%~2.54%,检出限达到0.0005μg/m L(197.312)、0.001μg/m L(221.426),检出下限0.002μg/m L(197.312)、0.004μg/m L(221.426),加标回收率96.0%~99.3%,结果准确,可靠。

This paper uses tartaric acid complexation masking interfering ions, Hydrogen peroxide oxidation smelting waste acid in low prices for rhenium rhenium （Ⅶ）, In 5 mol/L sodium hydroxide medium, extracted with acetone, ICP-AES measured. The method eliminates the matrix effect in the contaminated acid and the influence of a large number of interfering ions, Proceed with Accuracy, Precision detection limit and Spiked recovery experiment, Precision reaches 0.90% - 2.54%, Detection limit reached0.0005 μg/mL （ 197.312 ） 0.001 μg/mL （ 221.426 ） , Lower detection limit reached0.002 μg/mL（ 197.312）0.004 μg/mL（221.426） , The recovery rate was 96.0% -99.3%, The results are accurate and reliable.