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中国药物评价 ›› 2020, Vol. 37 ›› Issue (5): 358-361.

• 评价技术与方法 • 上一篇    下一篇

免疫亲和柱净化-柱后光化学衍生-高效液相色谱法检测蜚蠊中的黄曲霉毒素

周颖1, 祝清岚1, 马临科1*, 昝珂2*   

  1. 1.浙江省食品药品检验研究院,国家药品监督管理局中成药质量     评价重点实验室, 浙江 杭州 310053;
    2.中国食品药品检定研究院, 北京 100050
  • 收稿日期:2020-03-31 修回日期:2020-06-02 出版日期:2020-10-28 发布日期:2020-10-28

Determination of Aflatoxins in Periplaneta americana by Immunoaffinity Column and High Performance Liquid Chromatography Coupled with Post-column Photochemical Derivatization

1,Ke keZan   

  1. 1. Zhejiang Institute for Food and Drug Control, NMPA Key Laboratory of Quality Evaluation of
         Traditional Chinese Medicine, Zhejiang Hangzhou 310053, China;
    2. National Institutes for Food and Drug Control, Beijing 100050, China
  • Received:2020-03-31 Revised:2020-06-02 Online:2020-10-28 Published:2020-10-28
  • Contact: Ke keZan E-mail:6206310@qq.com

摘要: 目的:建立检测蜚蠊中黄曲霉毒素B1、B2、G1和G2的免疫亲和柱净化-柱后光化学衍生-高效液相色谱法。方法:样品经过70%甲醇溶液匀浆提取,用水稀释后经免疫亲和柱富集净化,经 C18 色谱柱分离,以甲醇、乙腈和水为流动相,柱后光化学衍生,荧光检测器进行检测。结果:在优化的条件下,黄曲霉毒素B1、B2、G1和G2线性关系良好,检出限分别为0.04,0.08,0.03和0.08 μg·kg-1,平均加标回收率为82.0%~90.1%。结论:该方法快速、准确、灵敏度高,可用于蜚蠊黄曲霉毒素的检测。 
    

关键词: font-size:medium, ">蜚蠊;黄曲霉毒素;光化学衍生;高效液相色谱

Abstract: Objective: To establish a method for determination of aflatoxin B1, B2, G1 and G2 in Periplaneta americana by immunoaffinity column and high performance liquid chromatography coupled with post-column photochemical derivatization. Methods: The sample were extracted with 70% methanol and purified by immunoaffinity column. The purified liquid was separated by using C18 chromatographic column and quantified with fluorescence detection after photochemical derivatization. Results: Under the condition of optimization, aflatoxin B1, B2, G1 and G2 showed a good linear relationship. The limits of detection were 0.04 μg·kg-1 for aflatoxin B1, 0.08 μg·kg-1 for aflatoxin B2, 0.03 μg·kg-1 for aflatoxin G1, 0.08 μg·kg-1 for aflatoxin G2. The mean recovery rates of four kinds of aflatoxin were 82.0%-90.1%. Conclusion: This method is rapid, sensitive and accurate, and can satisfy the requirement of multi-mycotoxin analysis in Periplaneta americana.
    

Key words: font-size:medium, ">Periplaneta americana; Aflatoxins; Photochemical derivatization; HPLC

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