摘要
本文研究了冷原子荧光法测定绿色电池中痕量汞的方法,提出在高温条件下快速氧化法消化处理电池中石墨碳、正极粉等难溶物料,使其迅速溶解至溶液清亮。解决了电池测定的前处理问题。该法具有耗酸量少、引进污染小、消解速度快、准确度和精密度好等特点。所用方法检出限为1.25×10^(-9)g,标准回收率为95%,方法相对标准偏差为4.56%,本法亦适用于其它固体试样中痕量汞的测定。
This paper investigates the method of using cold atomic fluorecentanalysis to determine the trace mercury in green battery. It is provided the swift oxidation of high temperature to digest graphite carbon and positive plate which are highly resistant to dissolution . So that these materials can be dissolved quickly to form clear liquid and problem of the pre—treatment in the detecting of components in battery is solved . The method has advantage of low energy consumption, Low contaimnation , high velocity of digestion,high precision and acuuracy. The detection limit is 1. 25ng. The standard recurrent rate is 95% and relative standard deviation is 4.56%. This method can also be used to determine trace mercury in other solid samples.
出处
《广州环境科学》
1995年第1期30-32,共3页
Guangzhou Environmental Science
