电感耦合等离子体发射光谱法同时测定铌铁中的硅、铝、钛和锰

Simultaneous Determination of Silicon,Aluminum,Titanium and Manganese in Ferroniobium by Inductively Coupled Plasma-Atomic Emission Spectrometry

试验了HNO3和HF在常温下溶解铌铁样品及采用基体匹配来消除共存元素的干扰,钇内标加入法提高了该方法的稳定性,同时考察了电感耦合等离子体光谱仪的RF功率、雾化气流量和辅助气流量等参数,选择了仪器的最佳分析参数.利用ICP光谱仪的分析软件,选择适当的背景点来扣除背景,通过编辑分析程序,实现了自动绘制工作曲线和计算数据结果.试验表明,用该方法测定铌铁中硅、铝、钛、锰的成分简单、快速、准确.

Ferroniobium samples dissolved by HNO_3 and HF at room temperature were examined,and the matrix matching method was used to eliminate interference of coexisting elements.The stability was enhanced by adding yttrium as the internal standard.In addition,such parameters as RF power,atomized air flow and auxiliary air flow for the inductively coupled plasma spectrometer were investigated,and the optimum analysis parameters for the instruments were determined.An editing analysis program of the ICP analysis software was used to realize automatic drawing of the working curves and the calculation of the data.The results of an experiment showed that this method is simple,fast and accurate and,therefore,is recommended for application in determining silicon,aluminum,titanium or manganese in ferroniobium.