A formula is deduced to calculate the contents (absolute or relative) of some elements in a sample by internal standard method with the aid of relative sensitivity factors.
具体给出了用相对灵敏度因子的内标法确定样品中各元素(绝对或相对)含量的计算公式。
The importance of analysing the internal quality of PET chip using national standard and standard sample were expounded.
阐明了应用国标和标样对分析聚酯切片产品的内在质量的重要意义。
After the sample is analyzed, the response to the unknown concentration is compared to the internal standard and an accurate measurement of the concentration of the substance of interest is obtained.
未知物质的浓度可根据测试结果与浓度经过标准地、精确测量的物质相比较而得出。
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