液相色谱-串联质谱法测定白芍禁用农药残留

doi:10.14088/j.cnki.issn0439-8114.2023.07.023

湖北农业科学 ›› 2023, Vol. 62 ›› Issue (7): 130-136.doi: 10.14088/j.cnki.issn0439-8114.2023.07.023

液相色谱-串联质谱法测定白芍禁用农药残留

罗发美¹, 毛静春¹, 黄莹睿², 周琴¹, 何希¹, 程龙³

1.普洱市质量技术监督综合检测中心,云南普洱 665099;
2.澜沧良宝生物科技有限公司,云南普洱 665099;
3.上海爱博才思分析仪器贸易有限公司,上海 200335

收稿日期:2023-03-30 出版日期:2023-07-25 发布日期:2023-08-15
作者简介:罗发美（1982-）,女（傣族）,云南华坪人,高级工程师,硕士,主要从事食品、药品质量与安全研究,（电话）0879-3013132（电子信箱）332551921@qq.com。
基金资助:
科技部国家重点研发计划“绿色宜居村镇技术创新”重点专项资金资助项目（2021YFD1100401）

Determination of prohibited pesticide residues in white peony by liquid chromatography-tandem mass spectrometry

LUO Fa-mei¹, MAO Jing-chun¹, HUANG Ying-rui², ZHOU Qin¹, HE Xi¹, CHENG Long³

1. Pu'er City Quality and Technology Supervision and Comprehensive Testing Center, Pu'er 665099, Yunnan,China;
2. Lancang Liangbao Biotechnology Co., Ltd., Pu'er 665099, Yunnan,China;
3. Shanghai AB Sciex Instrument Trading Co., Ltd., Shanghai 200335,China

Received:2023-03-30 Online:2023-07-25 Published:2023-08-15

摘要/Abstract

摘要： 建立液相色谱-串联质谱法（LC-MS/MS）同时测定白芍中29种禁用农药残留的分析方法。白芍粉末试样经乙腈浸泡过夜后超声波提取,采用固相萃取小柱净化,经LC-MS/MS正离子模式扫描分析29种禁用农药残留。结果表明,29种禁用农药的线性相关系数良好（R²> 0.995 1）,检出限为0.000 1~0.030 0 mg/kg,定量限为0.000 3~0.090 0 mg/kg;在0.01~0.50 mg/kg的加标水平下,29种禁用农药的回收率为66.8%~108.4%,相对标准偏差（n=6）为0.9%~12.3%。此方法成功应用于白芍质控样品中29种禁用农药的定性和定量分析,定性准确,定量结果在质控证书不确定度范围内,适用于白芍中29种禁用农药的残留分析。

关键词: 液相色谱-串联质谱法（LC-MS/MS）, 白芍, 芍药（Patagonia lactiflora Pall.）, 禁用农药残留, 基质效应

Abstract: A liquid chromatography-tandem mass spectrometry （LC-MS/MS） method was established for the simultaneous determination of 29 prohibited pesticide residues in the white peony. The white peony powder sample was soaked overnight in acetonitrile and extracted by ultrasound. The solid phase extraction column was used for purification, and 29 prohibited pesticide residues were analyzed by LC-MS/MS positive ion mode scanning. The results showed that the linear correlation coefficient of 29 prohibited pesticides was good （R²>0.995 1）, with a detection limit of 0.000 1~0.030 0 mg/kg and a quantitative limit of 0.000 3~0.090 0 mg/kg; at the spiked level of 0.01~0.50 mg/kg, the recovery rates of 29 prohibited pesticides were 66.8%~108.4%, and the relative standard deviation （n=6） was 0.9%~12.3%. This method had been successfully applied to the qualitative and quantitative analysis of 29 prohibited pesticides in the quality control samples of the white peony. The qualitative accuracy was accurate, and the quantitative results were within the uncertainty range of the quality control certificate. It was suitable for the residual analysis of 29 prohibited pesticides in the white peony.

Key words: liquid chromatography-tandem mass spectrometry （LC-MS/MS）, white peony, Patagonia lactiflora Pall., prohibited pesticide residues, matrix effect

中图分类号:

TS657.7

罗发美, 毛静春, 黄莹睿, 周琴, 何希, 程龙. 液相色谱-串联质谱法测定白芍禁用农药残留[J]. 湖北农业科学, 2023, 62(7): 130-136.

LUO Fa-mei, MAO Jing-chun, HUANG Ying-rui, ZHOU Qin, HE Xi, CHENG Long. Determination of prohibited pesticide residues in white peony by liquid chromatography-tandem mass spectrometry[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(7): 130-136.

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液相色谱-串联质谱法测定白芍禁用农药残留

Determination of prohibited pesticide residues in white peony by liquid chromatography-tandem mass spectrometry

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