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在真实样本中使用智能材料对黄素进行电化学分析

Eduardo Jara-Cornejo¹, Erick Peña-Bedón¹, Mahely Torres Moya¹

¹Technology of Materials for Environmental Remediation (TecMARA) Research Group, Faculty of Sciences, National University of Engineering, Lima 150128, Peru.

|February 10, 2024

概括

使用分子印记聚合物 (MIP) 和MWCNT的新型电化学传感器可在食品中选择性检测黄素. 这种方法比传统的HPLC分析提供了较低的检测极限 (LOD).

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
食品化学食品化学

背景情况:

黄素是一种具有显著抗氧化,抗炎和抗癌性能的化合物,在食品工业中至关重要.
准确量化食品中的黄素对于质量控制和健康评估至关重要.

研究的目的:

开发和描述一种选择性的电化学传感器,用于在食品样本中定量黄素.
将开发的传感器的性能与高性能液态染色学 (HPLC) 分析进行比较.

主要方法:

分子印记聚合物 (MIP) 和多壁碳纳米管 (MWCNT) 复合物的合成.
在玻璃碳电极 (GCE) 上滴滴造MIP-MWCNT复合材料.
使用富里埃变换红外 (IR) 光谱学,布鲁纳uer-Emmett-Teller (BET) 分析,循环电压测量 (CV) 和微分脉冲电压测量 (DPV) 的表征.
使用电化学和HPLC方法分析商业囊,黄根茎和黄粉中的黄素.

主要成果:

电化学传感器的检测极限 (LOD) 为0.1365μmol L-1,明显低于HPLC的3.55μmol L-1.1.
该MIP材料对黄素对潜在的干扰物质表现出极好的选择性.
使用HPLC的恢复百分比在87.5%至102.6%之间,表明可靠的量化.

结论:

开发的MIP-MWCNT/GCE电化学传感器是一种高度敏感和选择性的工具,用于在食品矩阵中确定黄素.
这种传感器为HPLC等传统方法提供了一个有希望的替代方案,用于快速准确的黄素分析.

关键词:

库尔库明是一种黄素.电化学传感器是一种电化学传感器.分子印记聚合物 (MIP) 是一种分子印记聚合物.

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