Sajede Sadat Mousavi, Abolfath Shahsavani, Zolfaghar Aladaghlo, Ali Reza Fakhari
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引用次数: 0
摘要
本研究采用溶剂辅助分散固相萃取(SA-DSPE) -气相色谱-火焰离子化检测器（GC-FID）的方法，对各种实际样品中的多环芳烃（PAHs）进行了提取和测定。简单合成了N，N′-双（水杨基）乙二胺（salen）作为吸附剂，并对其进行了表征。在最佳条件下（溶液pH: 6.0，吸附剂用量：0.5%，分散溶剂类型：乙腈，分散溶剂体积：500µL，离心条件：3743 g，离心3 min），多环芳烃的预富集系数为140 ~ 183，提取回收率为70 ~ 92%。线性动态范围为2.0 ~ 200.0 ng mL−1，回归系数（R2）大于0.99，检出限为0.6 ~ 0.9 ng mL−1，重复性(RSD%)≤8.4% （n = 5）。该方法可有效地用于食品和环境样品中多环芳烃的提取和测定。图形抽象
Solvent-assisted dispersive solid-phase extraction based on salen as a new and efficient sorbent followed by GC-FID for determination of polycyclic aromatic hydrocarbons in water, food, and soil samples
In this study, a solvent-assisted dispersive solid-phase extraction (SA-DSPE) method followed by a gas chromatography equipped with a flame ionization detector (GC-FID) was applied for the extraction and determination of some polycyclic aromatic hydrocarbons (PAHs) in various real samples. N,N′-bis(salicylidene)ethylenediamine (salen), as a sorbent, was simply synthesized and characterized. Under the optimal conditions (solution pH: 6.0, amount of sorbent: 0.5%, disperser solvent type: acetonitrile, disperser solvent volume: 500 µL, and centrifugation condition: 3743 g for 3 min), preconcentration factors and extraction recoveries for PAHs were obtained ranging from 140 to 183 and 70 to 92%, respectively. Linear dynamic ranges were from 2.0 to 200.0 ng mL−1 with the regression coefficients (R2) exceeding 0.99, limits of detection from 0.6 to 0.9 ng mL−1, and the repeatability values (RSD%) ≤ 8.4% (n = 5). The proposed method can be effectively applied for extracting and determining PAHs in both food and environmental samples.
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JICS is an international journal covering general fields of chemistry. JICS welcomes high quality original papers in English dealing with experimental, theoretical and applied research related to all branches of chemistry. These include the fields of analytical, inorganic, organic and physical chemistry as well as the chemical biology area. Review articles discussing specific areas of chemistry of current chemical or biological importance are also published. JICS ensures visibility of your research results to a worldwide audience in science. You are kindly invited to submit your manuscript to the Editor-in-Chief or Regional Editor. All contributions in the form of original papers or short communications will be peer reviewed and published free of charge after acceptance.
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