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食品研究与开发:2024,45(8):139-148
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同时快速检测蔬菜中百菌清和多菌灵的胶体金免疫层析法
(1.华南农业大学食品学院广东省食品质量安全重点实验室,广东广州 510642;2.海南省食品检验检测中心,国家市场监管重点实验室(热带果蔬质量与安全),海南海口 570314;3.广州万联生物科技有限公司,广东广州 510670;4.广东康辉集团有限公司,广东潮州 515638)
Simultaneous Rapid Detection of Chlorothalonil and Carbendazim in Vegetables by Colloidal Gold Immunochromatography Assay
(1.Guangdong Provincial Key Laboratory of Food Safety and Quality,College of Food Science,South China Agricultural University,Guangzhou 510642,Guangdong,China;2.Hainan Institute for Food Control,Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation,Haikou 570314,Hainan,China;3.Guangzhou Wanlian Biotechnology Co.,Ltd.,Guangzhou 510670,Guangdong,China;4.Guangdong Kanghui Group Co.,Ltd.,Chaozhou 515638,Guangdong,China)
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投稿时间:2023-06-07    
中文摘要: 该研究制备分别特异性识别百菌清、多菌灵的两种单克隆抗体,并建立一种同时快速检测蔬菜中百菌清和多菌灵的胶体金免疫层析法。在最适工作条件下,所建立的方法对百菌清、多菌灵的检测限分别为0.08 ng/mL 和1.95 ng/mL,线性范围分别为0.08~10.00 ng/mL 和1.95~250.00 ng/mL。黄瓜、番茄、包菜3 种样品加标回收率为79.2%~112.1%(百菌清)和63.3%~97.5%(多菌灵),变异系数均低于18.9%,试纸条所需检测时间为20 min,可应用于蔬菜中百菌清、多菌灵残留的现场高通量快速筛查。
Abstract:In this study,two monoclonal antibodies were prepared for the specific recognition of chlorothalonil and carbendazim,and a colloidal gold immunochromatography assay was developed for the rapid simultaneous detection of chlorothalonil and carbendazim in vegetables.Under the optimal conditions,the established method had detection limits of 0.08 ng/mL and 1.95 ng/mL for chlorothalonil and carbendazim,respectively,and the linear ranges were 0.08-10.00 ng/mL and 1.95-250.00 ng/mL,respectively.The recovery rates for cucumber,tomato,and cabbage samples ranged from 79.2% to 112.1%(chlorothalonil)and from 63.3% to 97.5%(carbendazim),with coefficients of variation all below 18.9%. The total detection time of the test strips was 20 min,making it applicable for on-site high-throughput rapid screening of chlorothalonil and carbendazim residues in vegetables.
文章编号:202408020     中图分类号:    文献标志码:
基金项目:国家自然科学基金国际(地区)合作与交流项目(32061160473);广东省科技计划项目(2022A0505050061)
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