用于食用油中4种多环芳烃移液器吸头微固相萃取的锌功能化共聚物整体柱的制备与应用
Fabrication and application of Zn functionalized copolymer monolithic column for pipette tip micro-solid phase extraction of 4 polycyclic aromatic hydrocarbons in edible oil.
作者信息
Wu Xinze, Chu Qiqi, Ma Qiong, Chen Huaixia, Dang Xueping, Liu Xiaolan
机构信息
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
出版信息
Food Chem. 2023 Jul 1;413:135605. doi: 10.1016/j.foodchem.2023.135605. Epub 2023 Feb 1.
The contamination of polycyclic aromatic hydrocarbons (PAHs) in edible oil is a health threat. Thus, trace analysis of PAHs is of high necessity. Based on the efficient adsorption of PAHs on Zn metal cluster, a Zn functionalized copolymer monolithic column was rationally designed for pipette tip micro-solid phase extraction (μ-SPE). The modified Zn improved the adsorption selectivity and capacity of the monolith for naphthalene, phenanthrene, fluoranthene and pyrene. Chemical doping and copolymerization stabilized the monolith with a long life. Under optimal extraction conditions, a μ-SPE-high performance liquid chromatography with ultraviolet detector method was established for the detection of 4 PAHs in edible oils. The method yielded detection ranges of 0.15-250 μg L (R > 0.997), detection limits of 0.050-1.5 μg L, satisfactory recoveries (86.3-101.5 %), and high precisions (RSDs < 7.9 %). The results indicated that the Zn functionalized copolymer monolithic column was an ideal separation medium for the detection of PAHs residues in edible oils.
食用油中多环芳烃（PAHs）的污染对健康构成威胁。因此，对PAHs进行痕量分析非常必要。基于PAHs在锌金属簇上的高效吸附，合理设计了一种锌功能化共聚物整体柱用于移液器吸头微固相萃取（μ-SPE）。改性后的锌提高了整体柱对萘、菲、荧蒽和芘的吸附选择性和吸附容量。化学掺杂和共聚使整体柱具有长寿命且性能稳定。在最佳萃取条件下，建立了一种μ-SPE-高效液相色谱-紫外检测法用于检测食用油中的4种PAHs。该方法的检测范围为0.15 - 250 μg/L（R > 0.997），检测限为0.050 - 1.5 μg/L，回收率令人满意（86.3 - 101.5%），精密度高（RSDs < 7.9%）。结果表明，锌功能化共聚物整体柱是检测食用油中PAHs残留的理想分离介质。
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