挥发性有机物检测中内标法与外标法的比较

Comparison of Internal and External Standard Method Used in Determination of VOCs

在挥发性有机物的测试中,多采用外标法。现对外标法和内标法进行了比较,结果表明,内标法在替代物回收率、加标监控回收率和精密度方面更为稳定,工作曲线的使用时间更长,更适用于大批样品的测定。

In the testing of VOCs, external standard method is much used. The paper compared external standard method and internal standard method, and found that the internal standard method was better in the recovery of substitute, added standard and precision, with longer working curve, so internal standard method was suitable for batch samples.