摘要
建立一种快速灵敏测定植物油中苯并(a)芘含量的方法。采用四氢呋喃作为萃取溶剂,样品溶解过0.22μm滤膜后直接注入高效液相色谱仪进行测定。结果表明:方法在苯并(a)芘质量浓度0.1~20 ng/mL的范围内线性关系良好,相关系数R^2为0.999 9,检出限为0.1μg/kg,定量限为0.3μg/kg,样品加标回收率在93.5%~102.5%之间。该方法重现性好,灵敏度高,可对6类植物油中苯并(a)芘含量进行测定,具有较强的实际应用价值。
A fast, efficient and sensitive method for the determination of benzo(a)pyrene(BaP) in vegetable oil was established.The tetrahydrofuran was taken as extraction solvent, and sample solution was injected into the HPLC directly after filtering by 0.22 μm filter membrane.The results showed that the method had good linearity in the range of 0.1-20 ng/mL for BaP, with the correlation coefficient(R^2) of 0.999 9, and the detection limit and quantitation limit were 0.1 μg/kg and 0.3 μg/kg, respectively, the recovery rate of real sample spiked was 93.5%-102.5%.This proposed method had been successfully applied to analyze BaP in six kinds of vegetable oils with good reproducibility and high sensitivity, and the method had a great practical application value.
作者
黄媛
HUANG Yuan(National Quality Supervision and Testing Center for Processed Food,Fujian Inspection and Research Institute for Product Quality,Fuzhou 350001,China)
出处
《中国油脂》
CAS
CSCD
北大核心
2020年第11期73-76,共4页
China Oils and Fats
