X－射线荧光光谱法测定道路扬尘中21种元素

DETERMINATION OF TWENTY-ONE ELEMENTS IN THE REFLY DUST BY X-RAY FLUORESCENCE SPECTROMETRY

本文用Ｘ－射线荧光光谱法，一次测定道路扬尘中Ｎａ等２１种元素。人工配制标样，回归法求取校准曲线常数，用散射线内标法和经验系数法校正基体效应。方法的准确度、精密度较好，分析结果令人满意。

The content of twenty-one elements such as Na etc. are determined by X-ray fluorescence spectrometry in the refly dust. The standard samples are artificially made. The calibration curve is calculated by the regression method. The matrix effect is corrected by using the scatter line internal standard method and the empirical coefficient method. This method gains good precision and accuracy, so the analytical results are satisfactory.