浙江农业科学 ›› 2025, Vol. 66 ›› Issue (11): 2685-2690.DOI: 10.16178/j.issn.0528-9017.20240655

• 药用植物 • 上一篇    下一篇

QuEChERS结合高效液相色谱串联质谱检测铁皮石斛中6种农药残留

郎雯君(), 徐潇颖(), 梁晶晶   

  1. 浙江省食品药品检验研究院 国家市场监管重点实验室(功能食品质量与安全), 浙江省市场监督管理局重点实验室(保健食品质量安全重点实验室), 浙江 杭州 310052
  • 收稿日期:2024-08-14 出版日期:2025-11-11 发布日期:2025-12-01
  • 通讯作者: 徐潇颖(1989—),女,浙江金华人,高级工程师,硕士,研究方向为食品质量安全控制,E-mail: net_easexxy@126.com
  • 作者简介:郎雯君(1999—),女,浙江杭州人,本科,研究方向为食品质量安全控制,E-mail: 1020508605@qq.com
  • 基金资助:
    浙江省“尖兵”“领雁”研发攻关计划资助项目(2023C04049);浙江省市场监督管理局检验监测技术装备项目(ZB2022466);食品快速检测质量评价技术研究与应用(20210129)

Determination of 6 pesticde residues in Dendrobium officinale by HPLC-MS/MS combined with QuEChERS

LANG Wenjun(), XU Xiaoying(), LIANG Jingjing   

  1. Zhejiang Provincial Key Laboratory for Market Regulation and Health Food Quality and Safety, National Key Laboratory of Market Supervision (Quality and Safety of Functional Food), Zhejiang Provincial Market Supervision Administration Key LaboratoryControl (Key Laboratory of Health Food Quality and Safety), Hangzhou 310052, Zhejiang
  • Received:2024-08-14 Online:2025-11-11 Published:2025-12-01

摘要:

为建立铁皮石斛中苯醚甲环唑、咪鲜胺、烯酰吗啉、吡虫啉、喹啉铜、噻呋酰胺6种农药残留的检测方法,样品经乙腈提取后,采用QuEChERS(quick、easy、cheap、effective、rugged、safe)净化,用高效液相色谱串联质谱(high performance liquid chromatography-tandem mass spectrometry, HPLC-MS/MS)进行分析。结果表明,6种农药在相应的质量浓度范围内线性关系良好,相关系数均大于0.990 0。在1倍、2倍、5倍定量限下加标回收率为72.7%~110.7%,相对标准偏差(relative standard deviations, RSD)为2.3%~4.1%。吡虫啉和喹啉铜的检出限为10 μg·kg-1,其余4种检出限均为1 μg·kg-1。本研究建立的方法准确稳定、基质干扰小、灵敏度高,为铁皮石斛中农药残留安全检测与质量控制提供了技术支持。

关键词: 铁皮石斛, 农药残留, QuEChERS, 高效液相色谱串联质谱

Abstract:

To establish a detection method for six pesticide residues in Dendrobium officinale, including difenoconazole, prochloraz, dimethomorph, imidacloprid, quinolinone, and thifluzamide, the samples were extracted with acetonitrile, purified by QuEChERS (quick, easy, cheap, effective, rugged, safe), and analyzed by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The results showed that 6 kinds of pesticide residues showed a good linear relationship within the corresponding mass concentration range, with a correlation coefficient of r>0.990 0. The spike recovery rates were 72.7%-110.7% at 1, 2, 5 times quantitation limits, and the relative standard deviations (RSD) ranged from 2.3%-4.1%. The detection limits of imidacloprid and quinolinone were 10 μg·kg-1, and the detection limits of the other 4 kinds of pesticide residues were 1 μg·kg-1. The established method is accurate and stable, with small matrix interference and high sensitivity, which provides technical support for the safety detection and quality control of pesticide residues in Dendrobium officinale.

Key words: Dendrobium officinale, pesticide residues, QuEChERS, HPLC-MS/MS

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