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一个经过修改的选择性光学传感器用于的测定,该传感器基于在聚乙烯化物 (PVC) 膜中加入西伦醇色

Abeer M E Hassan¹, Reem F Alshehri², Salah M El-Bahy³

¹Chemistry Department, Faculty of Pharmacy, October 6th University October Egypt.

|November 29, 2023

概括

使用西醇色 (XO) 的新光学传感器有效地检测环境和生物样本中的离子 (Se4+). 这种传感器为分析提供了一种敏感,选择性和可重复的方法.

科学领域:

分析化学分析化学
环境科学环境科学
材料科学材料科学材料科学

背景情况:

离子 (Se4+) 是重要的环境和生物分析剂.
现有的检测方法可能很复杂或缺乏灵敏度.
醇色 (XO) 是已知的的颜色指标.

研究的目的:

开发一种新的光学传感器,用于选择性和敏感地检测离子 (Se4+).
为了优化传感器的性能,并评估其在现实世界样本中的适用性.

主要方法:

使用聚乙烯化物 (PVC) 塑化与o-nitrophenyl octyl ether (o-NPOE) 结合的传感器膜的制造,其中包括西醇色 (XO) 和四乙烯酸 (NaTPB).
优化膜组成和响应时间,以获得最大的吸收效率.
对Se4+的色度分析基于XO浸膜在pH值6.6.6时从色变为粉红色的颜色变化.

主要成果:

优化的传感器表现出Se4+的线性检测范围为10-175 ng mL-1.
达到分别为3.0和10 ng mL-1的低检测和量化极限.
证明了高精度 (RSD% < 2.2%),对常见干扰的优良选择性,以及在再生后具有RSD% < 2.0%的良好可重复使用性.

结论:

开发的光学传感器为Se4+确定提供了强大而可靠的方法.
传感器的灵敏度,选择性和可重复使用性使其适合在环境和生物矩阵中分析Se4+.
这种新型传感器为常规监测提供了一个有希望的替代方案.

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