扩展通道法ICP-AES测定钢铁中硅、磷、铌、钛

Determination of Si,P,Nb and Ti in Steels by ICP AES with Offset Profile Additional Lines

本文在ＩＣＰ－ＡＥＳ所装置的固定通道的基础上，运用改变入射狭缝角度的办法，扩展了硅、磷、铌和钛元素的测量通道，入射狭缝角度的改变由步进马达控制。用此扩展道同时测定了钢铁中微量硅、磷、铌和钛，并对方法的检测限、精密度和准确度进行了考查，结果令人满意。用此方法还可扩展其他元素的测定，拓宽了ＩＣＰ－ＡＥＳ的应用范围。

This article introduced the increment of measurement channels for the elements silicon,phosphorus,niobium and titanium by changing the entrance slit angle,based on the fixed channels of the ICP AES.The entrance slit angle was controlled by a motor.We determined trace silicon,phosphorus,niobium and titanium in steels,and examined the detection limits,accuracy and precision,and the results were satisfactory.With this method,we could also determine other elements,and widened the applied range of ICP AES.