QuEChERS-高效液相色谱法同时测定植物固体饮料中10种植物毒素
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张鹏斐(1986—),女,湖南省怀化市食品药品检验所工程师,硕士。E-mail:faye3331986@163.com

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湖南省食品药品监督管理局食品药品安全科技项目(编号:湘食药科R201818)


Determination of ten phytotoxins in botany solid beverage by ultra high performance liquid chromatography coupled with QuEChERS
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    摘要:

    建立了植物固体饮料中原百部碱、侧柏酮、香豆素、黄连素、黄樟素、山道年、芦荟苷、细辛脑、异黄樟素、长叶薄荷酮10种植物毒素的QuEChERS结合超高效液相色谱的检测方法。样品经乙腈提取,应用QuEChERS技术净化,Wlech Xtimate C8液相色谱柱(4.6 mm×250 mm,5 μm)分离,流动相为甲醇—10 mmol/L乙酸铵水溶液(pH 3.5),通过PDA检测器进行检测。试验表明,10种植物毒素在0.005~154.200 mg/L范围内线性关系良好,相关系数均>0.997,方法检出限(S/N=3)为0.010~0.270 mg/kg,定量限(S/N=10)为0.032~0.830 mg/kg。阴性样品的3个添加水平的平均回收率在78.46%~100.77%,相对标准偏差(RSD,n=6)1.10%~3.07%,日间精密度为1.11%~2.73%。该方法操作简单,准确高效,适用于植物固体饮料种10种植物毒素含量的测定。

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    In order to ensure the quality and safety of plant solid beverages, and increase the basis for export, a new experimental method was built for the determination of ten phytotoxins, including protostemonine, thujone, coumarin, berberine hydrochloride, safrole, santonin, aloin, asarone, isosafrole, pulegone in solid beverage by High Performance Liquid Chromatography(HPLC). The samples were extracted with acetonitrile, purified with QuEChERS, then them were separated by gradient elution in Wlech Xtimate C8 column (4.6 mm×250 mm, 5 μm) and detected by PDA detector, with methanlo-ammonium acetate (10 mmol/L, pH 3.5). The results indicated good linear relationships in the range of 0.005~154.200 mg/L for the ten phytotoxins, with correlation coefficient greater than 0.997. The limits of detection (LODs, S/N=3) and quantification (LODs, S/N=10) of the method for the target compounds were in the range of 0.010~0.270 mg/kg and 0.032~0.830 mg/kg, respectively. The mean recoveries of negative samples at three spiked levels were between 78.46% and 100.77%, and the relative standard deviation (RSD, n=6) 1.10%~3.07%, the daily precision were 1.11%~2.73%. This method was suitable for the identification and quantification of ten phytotoxins in botanical solid beverage owing to its simplicity and accuracy.

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张鹏斐. QuEChERS-高效液相色谱法同时测定植物固体饮料中10种植物毒素[J].食品与机械,2020,(6):93-98.
ZHANG Peng-fei. Determination of ten phytotoxins in botany solid beverage by ultra high performance liquid chromatography coupled with QuEChERS[J]. Food & Machinery,2020,(6):93-98.

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  • 在线发布日期: 2023-02-17
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