湖北农业科学 ›› 2026, Vol. 65 ›› Issue (8): 163-169.doi: 10.14088/j.cnki.issn0439-8114.2026.08.024

• 检测·分析 • 上一篇    下一篇

UPLC-MS/MS法检测天冬中50种植物生长调节剂的残留量

徐梦, 卢森华, 樊文研, 梁培秋, 隆秀华, 程高波, 陈乐琰   

  1. 玉林市食品药品检验检测中心,广西 玉林 537000
  • 收稿日期:2025-11-03 发布日期:2026-09-02
  • 通讯作者: 卢森华(1985-),男,广西北流人,副主任药师,硕士,主要从事食品药品检验及实验室质量管理工作,(电话)0775-2380221(电子信箱)185143773@qq.com。
  • 作者简介:徐 梦(1985-),男,广西岑溪人,工程师,主要从事食品药品检验工作,(电话)0775-2380221(电子信箱)271040111 @qq.com
  • 基金资助:
    广西重点研发计划项目(桂科AB24010236); 玉林市科学研究与技术开发计划项目(玉市科20220526)

Determination of 50 plant growth regulator residues in Asparagus densiflorus by UPLC-MS/MS

XU Meng, LU Sen-hua, FAN Wen-yan, LIANG Pei-qiu, LONG Xiu-hua, CHENG Gao-bo, CHEN Le-yan   

  1. Yulin Center for Food and Drug Control, Yulin 537000, Guangxi, China
  • Received:2025-11-03 Online:2026-09-02

摘要: 为建立一种基于超高效液相色谱-串联质谱(UPLC-MS/MS)同时检测天冬[Asparagus densiflorus (Kunth) Jessop]中50种植物生长调节剂(PGRs)残留的分析方法,并应用于市售天冬样品的筛查。样品采用改良QuEChERS方法进行前处理,通过UPLC-MS/MS进行分析,结合内标法与基质匹配标准曲线实现准确定量。该方法在0.5~200.0 μg/L范围内线性关系良好(R2>0.990),检出限为0.02~10.00 μg/kg,加标回收率为67.3%~125.3%,相对标准偏差(RSD)均低于5.5%。利用所建方法对21批次市售天冬进行分析,结果显示,脱落酸、对硝基苯酚钠均有检出,3-吲哚乙酸与烯腺嘌呤检出率分别为95.2%、76.2%,其余PGRs均未检出。综上,该方法高效、可靠,适用于天冬中多类PGRs的高通量筛查,为相关质量监控提供了技术依据。

关键词: 天冬[Asparagus densiflorus (Kunth) Jessop], 植物生长调节剂, 超高效液相色谱-串联质谱, 脱落酸

Abstract: To establish an analytical method based on ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) for the simultaneous determination of residues of 50 plant growth regulators (PGRs) in Asparagus densiflorus, and to apply it to screen commercially available samples, the samples were pretreated using a modified QuEChERS method and analyzed by UPLC-MS/MS. Accurate quantification was achieved using an internal standard method and matrix-matched calibration curves. The method demonstrated good linearity in the range of 0.5-200.0 μg/L(R2>0.990), with limits of detection (LOD) between 0.02 and 10.00 μg/kg. The spiked recoveries ranged from 67.3% to 125.3%, with all relative standard deviations (RSD) below 5.5%. Analysis of 21 batches of commercial Asparagus densiflorus using the established method revealed that abscisic acid and sodium p-nitrophenolate were 100% detected, with the detection rates of 3-indoleacetic acid and enadenine reaching 95.2% and 76.2%, respectively, while the other plant growth regulators (PGRs) were not detected. In conclusion, the developed method was efficient and reliable, suitable for the high-throughput screening of multiple PGRs classes in Asparagus densiflorus, and provided a technical basis for relevant quality monitoring.

Key words: Asparagus densiflorus, PGRs, UPLC-MS/MS, abscisic acid

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