QuEChERS combined with ultra-high performance liquid chromatography-tandem mass spectrometry to determine acrylamide in Xinjiang Naan products
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(1. Karamay City Center for Disease Control and Prevention , Karamay , Xinjiang 834000 , China; 2. Xinjiang Second Medical College , Karamay , Xinjiang 834000 , China)

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    Abstract:

    [Objective] This study aimed to establish a rapid and accurate analytical method for the determination of acrylamide in Xinjiang characteristic Naan products.[Methods] The methodology involved adding the internal standard 13C3-acrylamide isotope to the samples,followed by the sequential addition of 9 mL of water,10 mL of acetonitrile,6 mL of n -hexane,6 g of anhydrous magnesium sulfate,and 1.5 g of sodium acetate salting agent.The samples were then extracted using vortex oscillation and centrifugation,discarding the n -hexane layer.Take 4 mL of the acetonitrile layer was purify with 400 mg of anhydrous magnesium sulfate and 300 mg PSA.The supernatant was evaporated to near dryness using liquid and subsequently re -dissolved in water for measurement.The separation was performed using ACQUITY UPLC HSS T 3 (100 mm ×2.1 mm,1.8 μm) column,with a mobile phase of water -methanol,in electrospray ionization positive ion mode and multi -reaction monitoring mode.[Results]] The method demonstrated a strong linear relationship for acrylamide detection within the range of 1.0~100 ng/mL (R2>0.999 1),with detection and quantitation limits of 0.25 μg/kg and 0.82 μg/kg,respectively.Recovery tests at three different concentration levels in various sample matrices yielded an average recovery rate of 91.3%~97.6%,with RSD values ranging from 1.3%~4.6%.Analysis of 65 commercially available naan samples revealed acrylamide contents ranging from 17.4~207.5 μg/kg,with significant differences observed among different types of Naan (H=23.10,P<0.05).[Conclusion] The proposed method features minimal sampling volume and reagent consumption,along with a rapid and straightforward process that yields accurate results.It is applicable to various types of naan products,demonstrating its versatility and efficiency.

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徐 曼,宋少龙,胡 俊,等. QuEChERS结合超高效液相色谱—串联质谱法测定新疆馕制品中丙烯酰胺[J].食品与机械英文版,2024,40(11):61-68.

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History
  • Received:January 24,2024
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  • Online: February 18,2025
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