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用便携式设备进行流量注射化学发光分析对基的现场量化

Wanchao Yu¹, Xiaoshan Zheng¹, Mengxi Tan¹

¹Department of Environmental Science, Zhejiang University, Hangzhou 310058, China.

Environmental science & technology

|January 16, 2024

概括

一个新的流量注入化学发光分析 (FIA-CL) 系统可以在现场连续检测基 (•OH). 这种敏感的方法最大限度地减少了环境干扰,允许在各种自然环境中实时监测OH.

科学领域:

环境化学环境化学
分析化学分析化学
化学传感器化学传感器

背景情况:

基 (•OH) 是一个关键的环境氧化剂,对许多自然过程至关重要.
现场实时检测OH对于了解环境动态至关重要,但目前的分析系统限制了这一点.
现有的方法往往会在复杂的环境矩阵中受到干扰.

研究的目的:

开发一种新型的流量注射化学发光分析 (FIA-CL) 系统,用于连续地在现场检测OH.
在环境样本中验证系统的性能并评估其灵敏度和可靠性.
证明该系统在各种自然环境中监测 •OH 的适用性.

主要方法:

开发一种FIA-CL系统,利用OH与phthalhydrazide的反应,在激活时产生化学发光.
使用芬顿反应作为受控的OH源进行验证.
应用24小时连续监测湖水,空气和沿海土壤中OH的系统.

主要成果:

在OH检测方面,FIA-CL系统实现了高灵敏度 (LOD = 0.035 nM,LOQ = 0.12 nM),性能优于传统方法.
成功地在现场进行了24小时的水和空气中光化学过程中OH的监测.
已证明能够追踪与阳光和沿海土壤的潮波动相关的OH变化.

结论:

开发的FIA-CL系统为现场实时OH监控提供了一个强大而灵敏的平台.
这项技术克服了以前方法的局限性,使得在复杂的环境环境中能够准确评估OH动态.
该系统为环境研究和对OH驱动过程的监测开辟了新的途径.

关键词:

化学发光的光泽现场定量化量化量化.流量注入在线分析流量注入在线分析基 (•OH) 是一种基.便携式设备是一种便携式设备.

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