固相微萃取结合气相色谱-质谱法筛查食用油中3-氯丙醇酯

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中图分类号：TS207 文献标志码：A 文章编号：1674-0270（2025）36-0077-03

Determination of 3-chloropropanol Esters in Edible Oils by Solid-Phase Microextraction Combined with Gas Chromatography-Mass Spectrometry

ZHANGYing,WANGYichen,RENManjun,HUYue (Xi'an Supervision & Inspection Institude of Product Quality, Xi'an 71Oooo, China)

Abstract:This studyestablishes amethod forthedeterminationof 3-chloropropanol esters inedible oils using solidphase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). Through systematic optimization of extraction fibers,extraction time,anddesorption temperature,optimal pretreatmentand instrumental analysis conditions were established.Method validation results demonstrates that 3- chloropropanol esters exhibited good linearitywithin the concentration range of 0.5～50μg/L （ R2 =0.999 2). The method showed a relative standard deviation of 2.1% 2 4.5% ， a detection limit of O.O5 μg/kg, and a recovery rate of 88.6 % （ .104.3% , meeting the requirements for trace detection. The method is applied to screen 24 samples of6 types of commerciallyavailableedibleoils,with all samples containing 3-chloropropanolesters belowthe provisional limit specified inthe National Food Safety Standard for Contaminants in Foods (GB 2762—2022).

Key Words: 3-chloropropanol esters; solid-phase microextraction; gas chromatography-mass spectrometry (GC-MS); edible oil

我国《食品安全国家标准食品中污染物限量》（GB2762—2022）对食用油中的3-MCPD酯提出了明确的限量要求。（剩余5151字）