悬浮液雾化进样感耦等离子体基本参数研究Ⅰ．等离子体激发温度测定

Study of Fundamental Parameters of Inductively Coupled Plasma with Slurry Nebulization——Ⅰ.Excitation Temperature Determination

研究了悬浮液雾化进样感耦等离子体原子发射光谱基本参数——等离子体激发温度。实验用“线为温标线，并采用多谱线法测量溶液雾化进样和0．05％二氧化钛悬浮液雾化进样等离子体激发温度。测定结果显示这两种雾化进样方式的等离子体激发温度接近，为5000-6000K。随感耦等离子体原子发射光谱仪器功率的提高，悬浮液雾化进样等离子体激发温度也相应增大，但增大幅度较小。悬浮液雾化进样等离子体发射光谱分析，若单纯改变仪器功率对于颗粒在等离子体中的原子化效率没有显著的变化，因此对于分析结果没有显著的改善作用。

The excitation temperature of plasma with slurry nebulization into inductively coupled plasma emission spectrometry was determined and reported in the present paper. Ti-lines and multi spectrum lines method were chosen and used to determine the excitation temperature with nebulization into the inductively coupled plasma with both aqueous solution and 0. 05% titanium slurry. There were approximately the same plasma excitation temperatures of 5 000-6 000 K for the two nebulization ways. The experiment verified that the excitation temperature only showed a little increase with RF power increasing. This means that the atomization efficiency did not change remarkably with slurry nebulization into the inductively coupled plasma if only the RF power was increased. Therefore, the analytical results were not much improved in the inductively coupled plasma emission spectrometry with slurry nebulization when only changing RF power.