ICP-AES测定工业盐酸中微量汞

Determination of Trace Mercury in Technical Hydrochloric Acid with ICP-AES

文章建立了电感耦合等离子体发射光谱法测定工业盐酸中微量汞的分析方法。通过实验确定汞元素的分析谱线并实验了酸度、功率、共存离子对测定微量汞的影响。本方法具有快速、准确、灵敏度高、精密度好等优点。应用本方法测定工业盐酸中微量汞,回收率:93.0%~105.2%,RSD≤6.84%,方法检出限为0.0012μg/mL,能够满足工业盐酸中微量汞分析检测的要求。

In this paper,the analytical method for determining trace mercury in technical hydrochloric acid with the inductively coupled plasma atomic emission spectrometry(ICP-AES)is established.The analytical spectral lines of element mercury are determined by experiment as well as the effects of acidity,power and accompanying ion on determining trace mercury are tested.The method is with such advantages as fast,accurate,high sensitivity and precision.Determine the trace mercury in technical hydrochloric acid with this method,the adding standard recovery is 93.0%~105.2%,RSD≤6.84%and detection limit of this method is 0.0012μg/mL,which could meet the requirements for analysis and detection of trace mercury in technical hydrochloric acid.