在横流免疫试验中消除表面活性剂干扰,使用分离策略来敏感检测马
Yanyan Tang1, Jiawei Chen1, Xiaoyue Xiao1
1State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
Food chemistry
|June 5, 2025
概括
一种新的表面活性剂无干扰侧流免疫试验 (SF-LFIA) 已开发用于检测有机酸盐农药 (CMP). 该方法在食品样本中提供高度敏感和快速的CMP检测,解决了环境和健康方面的问题.
科学领域:
- 农业化学 农业化学
- 分析化学 分析化学
- 免疫技术是一种免疫技术.
背景情况:
- 库马 (CMP) 是一种在农业中使用的有机杀虫剂和杀虫剂.
- CMP对健康和环境构成风险.
- 目前没有侧流免疫试验 (LFIA) 可用于CMP检测.
研究的目的:
- 开发一种敏感且可靠的检测 (CMP) 的方法.
- 克服表面活性剂引起的传统LFIA方法中的干扰问题.
- 为农产品中CMP提供快速检测工具.
主要方法:
- 对CMP产生敏感的单克隆抗体.
- 通过对免疫反应的空间分离来设计无表面活性干扰的LFIA (SF-LFIA).
- 使用果和卷心菜样本验证SF-LFIA的验证.
主要成果:
- 开发出具有0.59 ng mL-1的IC50值的单克隆抗体.
- SF-LFIA显示了0.016 ng mL-1的检测极限,比传统的LFIA显著更高的灵敏度.
- 在食品样本中实现了令人满意的恢复 (86.8%-101.2%) 和较低的变率 (<15%).
- 检测程序在不到30分钟内完成.
结论:
- 开发的SF-LFIA是一种高度敏感,快速和可靠的CMP检测方法.
- 这种方法有效地消除了表面活性剂的干扰,改善了测试性能.
- SF-LFIA为监测农业中CMP残留物,保护健康和环境提供了有价值的工具.
相关概念视频
Precipitation and Co-precipitation
5.7K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
5.7K
Supercritical Fluid Chromatography
1.4K
Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
SFC utilizes a supercritical fluid mobile phase,...
SFC utilizes a supercritical fluid mobile phase,...
1.4K


