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探头注入的聚合物单体传感器用于环境水样和烟草提取物中的Pb²⁺的色度检测

Sushmitha Pedugu Sivaraman¹, Prabhakaran Srinivasan¹, Deepan Kumar Madhu²

¹Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India.

Journal of hazardous materials

|January 21, 2025

概括

一个新的,价格实惠的固态光学传感器使用颜色变化检测离子 (Pb2+). 这种可重复使用的传感器为环境和公共卫生监测提供了快速的现场检测.

科学领域:

材料科学:开发用于传感应用的新型多孔聚合物复合材料.
分析化学:用于离子检测的固态光学传感器的设计和制造.

背景情况:

(Pb2+) 污染对环境和公共健康构成重大风险.
现有的检测方法可能是复杂,昂贵和耗时的.
需要快速,便携且具有成本效益的现场检测解决方案.

研究的目的:

开发一种负担得起的色度测量固态光学传感器,用于肉眼检测Pb2+.
为实时环境监测创建一个持久且可重复使用的传感器平台.
为了使可访问的检测,特别是在资源有限的设置.

主要方法:

制造一个多孔聚合物单体模板 (poly(LMC-co-EGDMA)).
将模板注入染色光探针 (NDBP) 来创建传感器.
使用显微镜,光谱和衍射对孔结构的描述.
优化传感器操作参数,以增强Pb2+离子传感.

主要成果:

聚-LMC-co-EGDMA) /NDBP传感器显示了明显的颜色变化,从淡桃色到深棕色,并增加了Pb2+度.
传感器表现出从0到300ppb Pb2+的线性响应,检测和量化极限分别为0.28和0.93ppb.
在真实样本 (香烟和天然水) 中,获得了高精度 (≥98.9%) 和精度 (RSD ≤1.8%).
传感器表现出40微秒的快速响应时间和出色的可重复使用性.

结论:

开发的固态传感器提供了高灵敏度,选择性和Pb2+痕迹的快速检测.
它的成本效益,便携性和可重复使用性使其成为环境监测和公共卫生保护的宝贵工具.
该传感器为在污染水和烟草中的现场检测提供了实用解决方案,特别是在发展中国家.

关键词:

测色传感器测色传感器领导领导领导领导领导宏观/中等孔性的聚合物单体的聚合物单体.烟草烟草烟草烟草烟草

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