氢化物原子荧光法测定煤中汞的试验研究

Experimental study on determination of mercury in coal by hydride atomic fluorescence spectrometry

运用北京吉天仪器有限公司生产的AFS-930d原子荧光光度计,进行了煤中汞元素准确测定的试验研究。该试验方法基于氢化物原子荧光强度测定煤中汞,对测量数据的精密度和准确度进行了检验。结果表明,该方法在0~1.0μg/L下,质量浓度与原子荧光强度成一次线性相关,相关系数为0.9996,且其样品的精密度和准确度均符合质量控制要求,该方法测定速度快,自动化程度高,值得推广应用。

The accurate determination of mercury in coal by AFS-930d atomic fluorescence photometer produced by Beijing Jitian Instrument Co.,Ltd.The precision and accuracy of the measurement data are tested based on the determination of mercury in coal by hydride atomic fluorescence intensity.The results show that the method has a linear correlation with atomic fluorescence intensity at 0~1.0μg/L,and the correlation coefficient is 0.9996.The precision and accuracy of the method meet the requirements of quality control,and the determination speed is fast.It is worth popularizing and applying.