当前位置：
X-MOL 学术
›
J. Hazard. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Porous chlorine-functionalized covalent organic framework anchored graphene aerogel composite for synergically enhanced solid phase microextraction of polychlorinated naphthalene in environmental water
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2024-02-27 , DOI: 10.1016/j.jhazmat.2024.133909 Lansen Yang 1 , Pengfei Li 2 , Yehong Han 3 , Dandan Han 3 , Hongyuan Yan 1
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2024-02-27 , DOI: 10.1016/j.jhazmat.2024.133909 Lansen Yang 1 , Pengfei Li 2 , Yehong Han 3 , Dandan Han 3 , Hongyuan Yan 1
Affiliation
|
The residues of polychlorinated naphthalenes (PCNs) produced in multiple industrial production and life processes are continuously entering environmental waters through atmospheric deposition and land drainage, and the water pollution caused by PCNs is continuing public concern due to their potential threat to aquatic ecosystems and public health. Herein, a new chlorine-functionalized covalent organic framework anchored graphene aerogel (COF-GA) was synthesized by covalent modification technology and used as fiber coating of solid-phase microextraction for synergically enhanced extraction of PCNs in environmental water. The extraction efficiency of COF-GA coated fiber was superior to commercial fiber due to the multiple interactions (π-π, hydrophobic interaction, and halogen bonding interaction). The COF-GA coated fiber has good stability, can avoid water vapor interference at 80 °C for a long time (30 −50 min) to maintain adsorption equilibrium, and can be reused at least 96 times. Combined with gas chromatography-tandem mass spectrometry, a sensitive method for the high-efficient enrichment (enrichment factors were 501 −7453 folds) and ultra-sensitive detection (LODs were 0.001 −0.428 pg/mL) of PCNs in environmental water was established. The enrichment factor for PCNs is significantly higher than in previous studies. This proposed method provides new technical support for the daily monitoring and risk assessment of trace PCNs in environmental water.
中文翻译：
多孔氯官能化共价有机骨架锚定石墨烯气凝胶复合材料协同增强环境水中多氯化萘的固相微萃取
多种工业生产和生活过程中产生的多氯化萘（PCNs）残留物通过大气沉降和土地排水不断进入环境水体，PCNs造成的水污染因其对水生生态系统和公众健康的潜在威胁而持续受到公众关注。 。在此，通过共价改性技术合成了一种新型氯官能化共价有机骨架锚定石墨烯气凝胶（COF-GA），并将其用作固相微萃取的纤维涂层，以协同增强环境水中多氯化萘的萃取。由于多重相互作用（π-π、疏水相互作用和卤素键相互作用），COF-GA 涂层纤维的萃取效率优于商业纤维。 COF-GA涂层纤维具有良好的稳定性，可以在80℃下长时间（30 -50 min）避免水蒸气干扰，保持吸附平衡，并且可以重复使用至少96次。结合气相色谱-串联质谱法，建立了环境水中多氯化萘的高效富集（富集倍数为501 −7453倍）和超灵敏检测（LOD为0.001 −0.428 pg/mL）的灵敏方法。 PCN 的富集因子显着高于之前的研究。该方法为环境水中微量多氯化萘的日常监测和风险评估提供了新的技术支撑。
更新日期：2024-02-27
中文翻译：
多孔氯官能化共价有机骨架锚定石墨烯气凝胶复合材料协同增强环境水中多氯化萘的固相微萃取
多种工业生产和生活过程中产生的多氯化萘（PCNs）残留物通过大气沉降和土地排水不断进入环境水体，PCNs造成的水污染因其对水生生态系统和公众健康的潜在威胁而持续受到公众关注。 。在此，通过共价改性技术合成了一种新型氯官能化共价有机骨架锚定石墨烯气凝胶（COF-GA），并将其用作固相微萃取的纤维涂层，以协同增强环境水中多氯化萘的萃取。由于多重相互作用（π-π、疏水相互作用和卤素键相互作用），COF-GA 涂层纤维的萃取效率优于商业纤维。 COF-GA涂层纤维具有良好的稳定性，可以在80℃下长时间（30 -50 min）避免水蒸气干扰，保持吸附平衡，并且可以重复使用至少96次。结合气相色谱-串联质谱法，建立了环境水中多氯化萘的高效富集（富集倍数为501 −7453倍）和超灵敏检测（LOD为0.001 −0.428 pg/mL）的灵敏方法。 PCN 的富集因子显着高于之前的研究。该方法为环境水中微量多氯化萘的日常监测和风险评估提供了新的技术支撑。
京公网安备 11010802027423号