电感耦合等离子体原子发射光谱法测定铜屑中7种元素的研究

Determination of Seven Elements in the Anode Copperby Inductively Coupled Plasma Atomic Emission Spectrometry

以(1+1)的HNO溶解样品,采用电感耦合等离子体原子发射光谱法测定铜屑中杂质元素。通过实验选择各元素最佳分析谱线,并对基体干扰及共存元素间的干扰进行探讨。在选定的实验条件下,方法的检出限为0.0003～0.004ng/ml,样品加标回收率为97%～107%,工作曲线回归系数为0.9998～1.0000。此方法对铜屑的分析测定值与原子吸收等方法的测定结果相一致,相对标准偏差为0.50%～2.7%。该技术大大提高了分析检测的速度,降低了劳动强度,精密度、准确度较高,适合铜屑中杂质分析检测。3[1]

The samples were dissolved with HNO3（1＋1）.The content of seven elements（including Pb、Zn、Ni、As、Bi、Sb and Fe） in the anode Copper were determined by inductively coupled plasma atomic emission spectrometry.The matrix interference was discussed.Under the selected experimental conditions,the detection limit was 0.0003～0.004ng/ml,sample recovery rate was 97%～107%,and the regression coefficient of work curve was 0.9998～1.0000.The techneque can greatly improve the speed of analysis and detection and reduce the labor intensity,with a high precision and accuracy.It＇s suitable for anode copper impurities assay.