高效液相色谱法测定植物油中菲含量的不确定度分析

Analysis on Uncertainty in Determination of Phenanthrene in Vegetable Oil with HPLC

目的探讨高效液相色谱法测定植物油脂中菲含量的测量不确定度,为评价检测数据的准确性提供科学依据。方法用HPLC法测定植物油中菲的含量,并根据JJF 1059-1999《测量不确定度评定与表示》中有关规定评估其不确定度。结果取样量2.00g时,测定植物油中菲含量为(110.1±6.5)μg/kg。结论本方法适用于高效液相色谱法测定植物油中菲的不确定度评定。

Objective To analyze the measurement uncertainty in determination of phenanthrene in vegetable oil with High Performance Liquid Chromatography, so as to provide scientific basis for evaluating ＊he detection accuracy. Meth- ods The content of phenanthrene in vegetable oil was determined with HPI.C and the urlcertainty of＂ the ＊rleasurelrzent was evaluated according to JJF 1059-1999. Results The phenanthrene content was（ll0.1±6.5）μg/kg in vegetable oil, when it was repeatedly determined when the sample was （weighed 2.00 g）. Conclusion This method is applicable to the uncertainty evaluation of HPLC determination of phenanthrene in vegetable oil.