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利用某些物质受热定量分解的特性,建立了一种用热重法(TG)测定样品中组分百分含量的分析测试方法。用该方法对多种纯试剂百分含量的测定、及对某固体催化剂中CaCO_3含量的测定结果表明:TG法测定结果的重现性良好,标准偏差为0.001,这种利用TG的重量分析法与经典的重量分析法相比,操作更快速、简便。
Based on the quantitative analysis of some materials by heat, an analytical method for the determination of the percentage of components in samples by thermogravimetric method (TG) was established. The method for the determination of the percentage of pure reagents and the determination of the content of CaCO_3 in a solid catalyst showed that the reproducibility of the results of the TG method was good with a standard deviation of 0.001. The gravimetric analysis by TG Compared with the classical gravimetric method, the operation is faster and easier.