Determination of Polycyclic Aromatic Hydrocarbons in Environmental Water by HPLC with Stir Bar Adsorption Extraction Based on Covalent Organic Framework Coating

LIU Hai-xia; YANG Cai-ling; RAO Hong-hong; LIU Fang; ZHANG Li; ZHAO Guo-hu

doi:10.19969/j.fxcsxb.23082201

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Determination of Polycyclic Aromatic Hydrocarbons in Environmental Water by HPLC with Stir Bar Adsorption Extraction Based on Covalent Organic Framework Coating

Scientific Papers | 更新时间：2023-12-25

- Determination of Polycyclic Aromatic Hydrocarbons in Environmental Water by HPLC with Stir Bar Adsorption Extraction Based on Covalent Organic Framework Coating
- Journal of Instrumental Analysis Vol. 42, Issue 12, Pages: 1573-1579(2023)
- 作者机构：
  
  1.兰州城市学院化学工程学院，甘肃兰州 730070
  2.城市环境污染控制”甘肃省高校省级重点实验室，甘肃兰州 730070
- 作者简介：
- 基金信息：
- DOI：10.19969/j.fxcsxb.23082201
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刘海霞,杨彩玲,饶红红等.基于共价有机骨架涂层的搅拌棒吸附萃取/高效液相色谱测定环境水样中的多环芳烃[J].分析测试学报,2023,42(12):1573-1579.

LIU Hai-xia,YANG Cai-ling,RAO Hong-hong,et al.Determination of Polycyclic Aromatic Hydrocarbons in Environmental Water by HPLC with Stir Bar Adsorption Extraction Based on Covalent Organic Framework Coating[J].Journal of Instrumental Analysis,2023,42(12):1573-1579.
刘海霞,杨彩玲,饶红红等.基于共价有机骨架涂层的搅拌棒吸附萃取/高效液相色谱测定环境水样中的多环芳烃[J].分析测试学报,2023,42(12):1573-1579. DOI： 10.19969/j.fxcsxb.23082201.

LIU Hai-xia,YANG Cai-ling,RAO Hong-hong,et al.Determination of Polycyclic Aromatic Hydrocarbons in Environmental Water by HPLC with Stir Bar Adsorption Extraction Based on Covalent Organic Framework Coating[J].Journal of Instrumental Analysis,2023,42(12):1573-1579. DOI： 10.19969/j.fxcsxb.23082201.

摘要

以刻蚀不锈钢丝（ESSW）为搅拌棒基体，用1，3，5-三（4-氨苯基）苯（TPB）和2，5-二乙烯基-1，4-苯二甲醛（DVA）两种单体，制备了一种分散良好的共价有机骨架涂层（TPB-DVA-COF）搅拌棒，结合高效液相色谱-紫外检测器（HPLC-UV）建立了环境水样中6种多环芳烃（PAHs）的分析方法。通过扫描电镜（SEM）、透射电镜（TEM）、傅里叶变换红外光谱（FTIR）等对涂层进行了表征，优化了离子强度、萃取温度、搅拌速率、萃取时间等条件。在优化条件下，菲、荧蒽和芘在0.20～200 μg/L，䓛、苯并［b］荧蒽和苯并［a］芘在0.05～200 μg/L范围内与色谱峰面积呈良好的线性关系，相关系数（,r,）不小于0.998 5，富集倍数最高可达到225倍，检出限（LOD，,S,/,N,=3）为0.007～0.150 μg/L，同一根搅拌棒的相对标准偏差为3.8%～6.1%，样品加标回收率为87.1%～104%。结果表明，该方法可以成功地应用于实际环境水样中PAHs的准确和高灵敏检测。

Abstract

1，3，5-Tri（4-aminophenyl） benzene（TPB） and 2，5-divinyl-1，4-phenyldiformaldehyde（DVA） were adopted as monomers to prepare a homogeneous covalent organic framework（TPB-DVA-COF） coated stir bar. The stir bar combined with high performance liquid chromatography was used for the extraction and detection of six polycyclic aromatic hydrocarbons（PAHs） in environmental water samples. Scanning electron microscopy（SEM），transmission electron microscopy（TEM），Fourier transform infrared spectroscopy（FTIR） were performed to characterize the material to confirm successful preparation of TPB-DVA-COF. Meanwhile，a series of experimental parameters including ion strength，extraction temperature，stirring rate，extraction time and desorption time were optimized. Under the optimized conditions，there were good linear relationships for phenanthrene（Phe），fluoranthene（Fla） and pyrene（Pyr） in the range of 0.20-200 μg/L，chrysene（Chr），benzofluoranthrene（B［b］f） and benzopyren （B［a］p） in the range of 0.05-200 μg/L，with the correlation coefficients（,r,） not less than 0.998 5，and enrichment factor could be reached 225 folds. The limits of detection（LODs，,S,/,N,=3） were in the range of 0.007-0.150 μg/L，and the relative standard deviations（RSDs） were in the range of 3.8%-6.1% for one bar（,n,=5），respectively. In the case of real samples analyses，the spiked recoveries were 87.1%-104%. The results showed that the developed method could be successfully applied to the accurate and highly sensitive detection of PAHs in actual environmental water samples.

关键词

共价有机骨架材料搅拌棒吸附萃取高效液相色谱多环芳烃环境水样

Keywords

covalent organic framework materialstir bar adsorption extractionhigh performance liquid chromatographypolycyclic aromatic hydrocarbonsenvironmental water

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