气相色谱-质谱联用法测定橡胶制品中多环芳烃（蒽）含量不确定度评定

摘要

Objective The uncertainty of the determination of PAHs ( anthracene ) in rubber by gas chromatography -mass spectrometry were evaluated .The factors affecting the results were analyzed . Method The PAHs ( anthracene ) in rubber by gas chromatography -mass spectrometry were determined according to ZEK 01.4 -2008 testing and validation of Polycyclic Aromatic Hydrocarbons ( PAH) in the course of GS -Mark Certification . The uncertainty of the results were evaluated and analyzed.The factors affecting the results were analyzed .The components are counted and combined . Result The expanded uncertainty is U=5.7 mg/kg, the confidence probability is 95%.Conclusion The factors affecting the results were mainly from calibration curve .%目的：对气相色谱-质谱联用仪法测定橡胶制品中多环芳烃（蒽）含量不确定度进行评定，确定影响不确定度的关键因素。方法依据《ZEK 01.4-2008 GS认证过程中PAHs的测试和验证》，使用气相色谱-质谱联用仪法测定橡胶制品中多环芳烃（蒽）含量，并对结果的不确定度进行评定，分析影响测量不确定度的各个因素，对各个分量进行计算和合成。结果扩展不确定度U＝5.7 mg/kg，置信概率95％。结论该实验的不确定度主要影响因素是曲线校准。