基于化学发光纸的分析装置用于汽油中的测量
Mahdiyeh Hassanpour-Khaneghah1, Abdolhossein Naseri2, Mortaza Iranifam3
1Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
Talanta
|September 28, 2025
概括
一种具有化学发光检测 (PAD-CL) 的新型纸质设备可以准确地测量汽油中的 (Pb2+). 这种环保方法使用NiO空心微球,为环境监测提供低检测极限.
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:
- 精确检测汽油中的 (Pb2+) 对于环境监测和公共卫生至关重要.
- 传统的检测分析方法可能是复杂的,耗时的,需要专门的设备.
- 需要开发简单,便携且具有成本效益的分析设备,以便在现场进行环境分析.
研究的目的:
- 开发一款具有化学发光检测 (PAD-CL) 的新型纸质分析装置,用于在汽油样本中量化酸 (Pb2+).
- 使用氧化空心微球 (NiO HMs) 作为催化剂,以增强用于检测的化学发光反应.
- 评估性能,优化参数,并评估开发的PAD-CL方法对真实汽油样本的适用性.
主要方法:
- 用NiO空心微球 (NiO HM) 修改的纸质分析装置 (PAD) 的制造.
- 利用NiO HMs催化的一种光-O2化学发光 (CL) 反应,其中Pb2+作为一种抑制剂.
- 优化反应参数,包括溶液度,滴量和干燥时间;使用光度计监测CL信号.
主要成果:
- 开发的PAD-CL方法显示了Pb2+的线性校准曲线,在8.00 × 10-9到8.00 × 10-7mol L-1 (R2 = 0.99) 之间.
- 实现了1.29 × 10−9 mol L−1 的低检测极限 (3S),用于Pb2+.
- 证明了可接受的精度,相对标准偏差 (RSD) 为7.01% (n=5),在真实汽油样本中具有令人满意的选择性和准确性.
结论:
- 新的PAD-CL方法提供了一种敏感,选择性和准确的方法来确定汽油中的Pb2+.
- 纸质基板的使用在易于使用,便携性和成本效益方面具有优势,符合绿色化学原则.
- 这种具有环境意义的方法最大限度地降低了试剂消耗,避免了外部氧化剂,支持可持续的分析实践.
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