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本文采用了一种新的分析方法,即增量法定量X射线相分析,测定了CaO试样中Ca(OH)_2的含量。方法的要点是:在试样含有组元n≥2的粉末材料中,欲分析其中感兴趣的组元,就可有意地加强该组元的浓度,并作出强度比与增量关系之间的定标曲线,此曲线与增量轴相交处的绝对值便是该组元在原试样中的重量分数。这种方法主要适用于难以获得纯组元的材料的定量相分析。已用这种方法测定CaO试样中Ca(OH)_2的含量,得到了满意的结果。并将此结果与橡胶的工艺性能试验作了比较,其结果也是令人鼓舞的。 为了比较和验证该方法的可靠性,我们还采用了外标法定量X射线相分析。结果表明增量法获得的结果与外标法测得的相符
In this paper, a new analytical method, namely incremental quantitative X-ray phase analysis, was used to determine the content of Ca (OH) 2 in CaO samples. The main points of the method are as follows: in the case of a sample of powdery material containing component n ≧ 2, analyzing the component of interest therein intentionally strengthens the concentration of the component and makes a comparison between the intensity ratio and the increment The calibration curve, the absolute value of the intersection of this curve with the incremental axis, is the weight fraction of the component in the original sample. This method is mainly suitable for quantitative phase analysis of materials that are difficult to obtain pure components. This method has been used to determine the content of Ca (OH) 2 in CaO samples, and satisfactory results have been obtained. The result is also compared with the rubber performance test. The result is also encouraging. In order to compare and verify the reliability of the method, we also used external standard quantitative X-ray phase analysis. The results show that the results obtained by the incremental method with the external standard measured