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长度控制的疏水性CF₃-COF作为一种高效的吸收涂层,用于水样中的16种多环芳的双模固相微提取

Zirong Lan¹, Jin Huang¹, Shanliang Fu²

¹School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, PR China.

The Science of the total environment

|March 16, 2024

概括

开发了一种新的三甲基丰富的共价有机框架 (CF3-COF),用于固相微提取 (SPME),以检测水样中的危险多环芳 (PAH). 这种双模式CF3-COF-SPME方法提供了多种PAH的高效快速提取.

科学领域:

环境化学环境化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

多环芳 (PAH) 是具有致癌性质的危险环境污染物.
它们的无处不在和毒性需要敏感的检测方法.
对于各种挥发性化合物,现有的PAH分析方法可能耗时且缺乏效率.

研究的目的:

设计和合成一种新的三甲基丰富的共价有机框架 (CF3-COF) 材料.
开发一种采用CF3-COF进行高效PAH提取的双模固态微提取 (SPME) 方法.
建立一种敏感的分析方法,用于检测水样中的多重PAH.

主要方法:

合成CF3-COF材料用于SPME涂层.
在SPME (HS/DI-SPME) 中整合头部空间 (HS) 和直接沉浸 (DI) 模式,通过改变涂层长度.
使用气体染色学并联质谱法 (GC-MS/MS) 分析了16种PAH.

主要成果:

CF3-COF涂层通过疏水性,π-π和H键相互作用对PAHs表现出高的吸附选择性.
双模式的HS/DI-SPME有效地同时提取了16种不同挥发率的PAH.
吸附平衡时间显著减少到15分钟.
检测极限在0.008-0.16 ng/mL之间,定量极限在0.029-0.47 ng/mL之间.
水样中的恢复率在80.84%至117.67%之间.

结论:

开发的双模式CF3-COF-SPME方法为分析多种PAH提供了快速,选择性和高效的方法.
该战略表明,在复杂的环境矩阵中丰富和检测危险物质的巨大潜力.
CF3-COF材料是先进的SPME应用的有希望的候选材料.

关键词:

在CF(3) -COF的基础上.双模式固相微提取双模式固相微提取多环芳香碳化合物多环芳香碳化合物

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