【摘要】 <正> 本文简单地叙述了在X射线荧光光谱定量分析中数学校正法的方法原理,介绍了所引用的基本公式和经验方程;列出了经验系数法,基本参数法和经验系数法相结合方法的计算组成的程序框图,并讨论了这二种方法应用在裂化、重整,加氢催化剂组成分析中的结果. 结果表明:用计算机进行数学校正较好地解决了多元素之间的干扰影响,取得了与化学法基本一致的分析数据,提高了分析速度和准确度,满足了催化剂研制要求.本方法测定样品的相对误差小于±2%.更多还原

【Abstract】 The principle of mathematical calibration method in X-ray fluorescence quantitive analysis is described. The fundamental formula and empirical equation are introduced, flow chart of computer program for the empirical coefficients, as well as the combination approach with both fundamental parameter expressions and empirical coefficients methods in consideration are given. The results of analyses are listed and the applications of this two methods to cracking, reforming and hydrotreating catalysts are discussed. The results show that the problem of interference of multielements are solved satisfactorily by mathematical calibration with computer and the data agrees with chemical methods while the efficiency and precision are both increased. The relative error of these methods is less than 2%.更多还原