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奎诺林桥架高合共有机框架作为固相微提取涂层,用于在水样中超敏感地确定甲酸

Wenfen Zhang^1,2,3, Yuan Yang², Jian Mao¹

¹Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China.

Journal of agricultural and food chemistry

|October 31, 2023

概括

开发了一种新的富含的素桥接共价有机框架 (N-QTTI),用于固相微提取 (SPME),以检测水中的酸盐 (PAE). 这种超敏感的方法显著改善了环境监测的检测极限和丰富系数.

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:

甲酸乙烯 (PAE) 是广泛存在的环境污染物,对健康造成重大关注.
现有的PAE分析方法需要提高灵敏度和速度.
开发用于高效提取的新材料对于准确的PAE确定至关重要.

研究的目的:

制造一种新的富含的oline桥接共价有机框架 (N-QTTI) 材料.
使用N-QTTI作为固相微提取 (SPME) 涂层,用于超敏感的PAE测定.
开发和验证一种快速,高度敏感的分析方法,以检测水样中的PAE.

主要方法:

对N-QTTI材料的合成和表征.
应用N-QTTI作为SPME涂层用于从水样中提取PAE,使用半浸泡策略.
使用气体染色学质谱法 (GC-MS) 来分析提取的PAE.

主要成果:

与其他材料相比,N-QTTI涂层纤维表现出优越的丰富性能.
开发的N-QTTI-SPME-GC-MS方法实现了低检测极限 (0.17-1.70 ng L-1) 和定量 (0.57-5.60 ng L-1).
该方法表现出极好的线性 (R2 ≥ 0.995),可重复性 (RSD < 8%) 和恢复率 (90.0-106.2%).
丰富系数从291到17180不等,LOD比以前的方法提高了5-5400倍.

结论:

新型N-QTTI材料对于环境分析中的SPME应用非常有效.
开发的N-QTTI-SPME-GC-MS方法为在水中检测PAE提供了一种超敏感和高效的方法.
这种技术代表了监测环境样本中甲酸污染的重大进步.

关键词:

气体染色学 - 质谱学甲酸 Ester 甲酸甲酸甲酸甲酸奇诺林桥梁共价有机框架固体阶段微提取的微提取方法

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