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多变量分析pH-依赖的碳点对Fe3+离子的敏感性检测使用UV-VIS光谱

Muna E Raypah¹, Mohd Faizal Jamlos^2,3, Jelena Muncan⁴

¹Centre for Artificial Intelligence & Data Science, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300, Gambang, Malaysia. muna.ezzi@gmail.com.

Journal of fluorescence

|May 14, 2025

概括

从汁中合成的蓝色发射碳点 (CD) 有效地检测铁离子 (Fe3+). 最佳检测发生在pH 7下,平衡离子溶解度和环境和生物化学应用的传感能力.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
纳米技术纳米技术

背景情况:

光碳点 (CD) 是用于重金属离子检测的多功能纳米材料.
铁离子 (Fe3+) 具有重大环境和健康风险.
开发对Fe3+的敏感和特定检测方法至关重要.

研究的目的:

从汁中合成蓝色发射的碳点 (CD).
为了研究CDs对于铁离子 (Fe3+) 检测的pH依赖的灵敏度.
应用多变量分析来理解传感机制和优化性能.

主要方法:

从汁中合成碳点的热水合成.
紫外线-Vis吸收光谱测量Fe3+离子度 (0-400μM) 在pH范围 (3-13) 中.
多变量分析包括主要组件分析 (PCA),线性差异分析 (LDA) 和部分最小平方回归 (PLSR).

主要成果:

在Fe3+离子的存在下,CD显示了pH依赖的光火.
吸收增强与pH值有显著的变化,表明复杂的相互作用.
多变量分析显示了pH,电子转换和Fe3+感应之间的相关性.
PLSR确定pH7为Fe3+检测,平衡离子溶解度和CD灵敏度的最佳值.

结论:

汁衍生的CD对于Fe3+感应是有效的.
在Fe3+检测中,pH在CD的性能上起着至关重要的作用.
多变量分析增强了基于CD的传感器的理解和优化.
这项研究强调了CD在生理pH值下进行现实环境和生化监测的潜力.

关键词:

吸收能力吸收能力碳点是一些碳点.铁 (III) 是一种铁.热水发电是一个热水发电系统.和:一个.多变量分析多变量分析.

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