X射线荧光光谱法分析玻璃纤维中主、次量元素成分

采用粉末压片-波长色散X射线荧光光谱法分析了中碱及无碱玻璃纤维中硅、铝、钙、镁、铁、钛、钾、钠、砷、氟等10种主、次量元素成分含量。以6个标准样品并结合两个参考样品建立校准曲线，采用DeJongh模式方程有效校正玻璃基体中元素间的吸收增强效应和重叠效应。该方法测定10个元素的精密度和准确度均较好，其相对标准偏差在0．35％～2．86％之间，对实际样品的分析结果与化学法相吻合，可应用于玻璃纤维中多元素成分的快速分析。

XRFS ANALYSIS OF GLASS FIBRE FOR ITS MAJOR AND MINOR ELEMENTS

Rapid determination of major and minor element in medium-alkali and non-alkali glass fibre was fulfilled by the wavelength dispersive-X-ray fluorescence spectrometry. Sample disc was prepared by pressing the powdered sample in a mould. Major and minor elements, including Si, Al, Ca, Mg, Fe, Ti, K, Na, As and F, were determined by the presented method rapidly and simultaneously. Six standard samples and 2 reference samples were used in the preparation of calibration curves, and the orcoefficient of the De Jongh mode theory was used to correct the inter-element absorption-enhancement effect and spectral overlapping effect of the glass matrix. Precision of this method was tested and RSD's for all the 10 elements determined were in the range from 0. 35% to 2. 86%. The results obtained by this method were in consistency with the results given by chemical methods.