铁替代后检测方法优化用于Ni (II) -有机复合物的测量:模拟,实验和建模
Wei Deng1,2, Xiaoli Lv1, Cheng Lu3
1National and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
Environmental monitoring and assessment
|October 15, 2025
概括
这项研究优化了一种用于检测水中的低 (Ni(II)) 度的新方法. 精炼的Fe (III) 替代技术为环境分析提供了更好的灵敏度.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 计算化学计算化学
背景情况:
- 定量 (Ni(II)) 复合物,如Ni-EDTA,由于度低和紫外线吸收能力弱,因此具有挑战性,阻碍了传统光谱测量.
- 现有的Fe(III) 替代方法缺乏系统的优化,限制了它们的灵敏度和在环境监测中的实际使用.
研究的目的:
- 系统地完善和优化Fe (III) 替代方法,以对环境样本中Ni (II) 复合物的敏感检测.
- 提高Ni (II) 量化在水质分析中的实际应用.
主要方法:
- 使用模拟引导的实验设计,包括热力学模拟和密度函数理论 (DFT) 计算.
- 使用机器学习,包括随机森林回归 (RFR),用于变量重要性分析和预测建模.
- 将优化方法应用于各种环境水样 (表面,地下,废水).
主要成果:
- 在优化条件下,Ni-EDTA的低检测极限为1 × 10−3 mM.
- 在各种水种中表现出强烈的线性 (R2 > 0.96) 和良好的矩阵耐受性.
- RFR模型 (R2 = 0.951) 确定了pH值和水浴持续时间作为方法性能的关键因素.
结论:
- 成功开发并优化了一种可靠的Fe (III) 替代方法,用于环境Ni (II) 复杂监测.
- 结合模拟和机器学习的方法显著推进了水质分析.
- 在复杂的水性环境中分析具有挑战性的Ni (II) 复合物提供了一个有前途的策略.
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