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基于Cu²⁺/Cu⁺剥离电流的食品中的卡苏加米的电化学感应分子印记技术

Ashraf M Mahmoud¹, Yahya S Alqahtani¹, Ali O Al-Qarni¹

¹Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia. amsayed@nu.edu.sa.

Analytical methods : advancing methods and applications

|November 1, 2024

概括

使用分子印记聚合物 (MIP) 的新电化学传感器可以检测抗生素kasugamycin. 这种传感器提供了一种敏感和选择性的方法来监测食品中的卡苏加辛.

科学领域:

电化学电化学电化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

农业抗生素残留物对人类健康和环境构成风险.
准确和灵敏的检测方法对抗生素,如卡苏加辛,对于食品安全至关重要.

研究的目的:

开发一种新的电化学传感器,用于敏感和选择性检测卡苏加辛.
使用分子印记聚合物 (MIP) 与碳糊 (CP) 矩阵集成,以增强传感能力.

主要方法:

基于碳糊 (CP) 的电化学传感器的制造,其中包含分子印制聚合物 (MIP).
用于Cu (II) - 卡苏加米辛复合物的特定腔的MIP的设计.
使用微分脉冲电压测量 (DPV) 来检测在卡苏加米的存在下产生的Cu (II) -Cu (I) 的氧化还原信号.

主要成果:

传感器对0.15140μM的度范围内表现出对卡苏加米辛的线性反应.
实现了0.046μM的低检测极限 (LOD).
在实物食品样本 (肉类,牛奶,黄瓜) 中观察到高恢复率 (96.0103.8%) 和低相对标准偏差 (2.24.0%).

结论:

开发的Cu(II) -MIP@CP电化学传感器提供了一种稳定,可靠和选择性的检测卡苏加辛的方法.
传感器在复杂矩阵中的有效性证明了其在实际食品安全应用中的潜力.
这种方法为监测农业抗生素残留物提供了一个有希望的工具.

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