摘要
目的:建立一种可实现对大米中镉元素现场快速检测的胶体金试纸条检测方法。方法:基于侧向免疫层析技术,对胶体金试纸条一系列影响检测性能的参数进行系统优化。结果:所制备的胶体金试纸条对大米中镉元素的检测达到了可视化检测限为10 ng/g的水平。在实际应用中,此方法样品前处理过程操作简单,低浓度酸直接提取并稀释后即可用于试纸条检测。结论:胶体金试纸条快速检测方法适用于大米镉的现场快速筛检。
Objective:A colloidal gold test strip method that can achieve on-site and rapid detection of cadmium elements in rice was established.Methods:Based on lateral immunochromatographic technology,the colloidal gold test strip was systematically optimized for a series of parameters that affect the detection performance.Results:The visual detection limit of cadmium in rice was reached at 10 ng/g with the colloidal gold test strip.In practical applications,the sample pretreatment process is simple,low concentration acid can be directly extracted and diluted for test strip detection.Conclusion:The colloidal gold test strip was suitable for on-site rapid screening ofcadmium in rice.
作者
王冉冉
姚丽
姚帮本
陈伟
陈赵然
WANG Ranran;YAO Li;YAO Bangben;CHEN Wei;CHEN Zhaoran(School of Food and Biological Engineering,Hefei University of Technology,Hefei,Anhui 230601,China;Anhui Province Institute of Product Quality Supervision&Inspection,Hefei,Anhui 230051,China)
出处
《食品与机械》
CSCD
北大核心
2023年第8期60-65,88,共7页
Food and Machinery
基金
安徽省自然科学基金项目(编号:2208085QB56)
安徽省重点研究与开发计划项目(编号:202104a07020008,2022f04020003)。
关键词
大米
镉
现场快速检测
胶体金试纸条
可视化检测
低浓度酸
rice
cadmium
on-site and rapid detection
colloidal gold test strip
visual detection
low concentration acid
