​UPLC-MS/MS法测定食用植物油中乙基麦芽酚的含量

陈 娴1,黄合琤2*,曹爱玲2,马文思1,李 彪3,金 璐4

(1.昆明市食品药品检验所(昆明市食品药品检验研究院),昆明650032;2.云南云测质量检验有限公司,昆明650501;3.昆明市东川区市场监督管理综合服务中心,昆明654100;4.昆明市体育学校,昆明650500)

摘要:建立测定食用植物油中乙基麦芽酚含量的超高效液相色谱-质谱联用仪(UPLC-MS/MS)分析方法。采用Waters HSS T3 C18色谱柱(2.1 mm×50 mm,1.8 μm),以0.1%甲酸-水溶液(A)-乙腈溶液(B)为流动相,梯度洗脱(0~1.0 min,5% B;1.0~1.5 min,5% B→95% B;1.5~3.0 min,95% B;3.0~3.5 min,95% B→5% B;3.5~5.0 min,5% B),流速为0.3 mL/min,柱温为40 ℃,进样量为2 μL;质谱采用电喷雾离子源,正离子模式,多反应监测模式(MRM)进行扫描。乙基麦芽酚在0~100 ng/mL 范围内与峰面积呈良好的线性关系;平均回收率(n=6)为86.2%~103.0%,相对标准偏差(RSD)为0.63%~5.72%。该方法简便、灵敏、准确、高效,可用于食用植物油中乙基麦芽酚含量的测定。

关键词:UPLC-MS/MS;食用植物油;乙基麦芽酚

中图分类号:TS225.1 文献标识码:A 文章编号:1674-506X(2025)06-0125-0005


UPLC-MS/MS Method Determination of the Content of Ethyl Maltol in Edible Vegetable Oils

CHEN Xian1,HUANG Hecheng2*,CAO Ailing2,MA Wensi1,LI Biao3,JIN Lu4

(1.Kunming Food and Drug Inspection Institute (Kunming Institute of Food and Drug Inspection and Research),Kunming 650032,China;2.Yunnan Yunce Quality Testing Co.,Ltd.,Kunming 650501,China;3.Kunming Dongchuan District Market Supervision and Management Comprehensive Service Center,Kunming 654100,China;4.Kunming Sports School,Kunming 650500,China)

Abstract: Ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) analytical method was established for the determination of ethyl maltol content in edible vegetable oils. Waters HSS T3 C18 column (2.1 mm×50 mm,1.8 μm) was used as mobile phase with 0.1% formic acid-water solution (A)-acetonitrile solution(B) as mobile phase,gradient elution(0~1.0min,5% B;1.0~1.5min,5% B→95% B;1.5~3.0min, 95% B; 3.0~3.5 min, 95% B→5% B; 3.5~5.0 min, 5% B), the flow rate was 0.3 mL/min, the column temperature was 40 ℃ , and the injection volume was 2 μL. Mass spectrometry scanned the samples using electrospray ion source,positive ion mode,and multiple reaction monitoring mode (MRM) . Ethyl maltol had a good linear relationship with the peak area in the range of 0~100 ng/mL;The average recovery rates (n=6) were 86.2%~103.0%,the relative standard deviation (RSD) was 0.63%~5.72%. This method is simple, sensitive, accurate and efficient, and can be used for the determination of ethyl maltol content in edible vegetable oil.

Keywords: UPLC-MS/MS;edible vegetable oils;ethyl maltol

doi: 10.3969/j.issn.1674-506X.2025.06-018

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