对氨基苯磺酸样品中C、H、N、S的含量测定及其不确定度评估

The Uncertainty on Determination of C、H、N、S of Sulfanilic Acid

用元素分析仪测定了对氨基苯磺酸样品中C、H、N、S的含量,分析影响结果的各因素,并对各因素引入的不确定度分量及合量进行评估,明确对测试结果有重要影响的分量,并提出改进措施,对于提高数据可靠性,优化分析方法有重要意义。

The contents of C, H, N and S were determined by elementary analyzer. All aspects which could impact the results were indicated. The uncertainty component and combined uncertainty were calculated as well. The most important uncertainty component was indicated. Suggestions were also given for decreasing error. It is meaningful for optimizing the test methods and improving the accuracy of test data.