Zhao, X.; Feng, X.; Chen, J.; Zhang, L.; Zhai, L.; Lv, S.; Ye, Y.; Chen, Y.; Zhong, T.; Yu, X.; Xiao, Y. Rapid and Sensitive Detection of Polycyclic Aromatic Hydrocarbons in Tea Leaves Using Magnetic Approach. Foods2023, 12, 2270.
Zhao, X.; Feng, X.; Chen, J.; Zhang, L.; Zhai, L.; Lv, S.; Ye, Y.; Chen, Y.; Zhong, T.; Yu, X.; Xiao, Y. Rapid and Sensitive Detection of Polycyclic Aromatic Hydrocarbons in Tea Leaves Using Magnetic Approach. Foods 2023, 12, 2270.
Zhao, X.; Feng, X.; Chen, J.; Zhang, L.; Zhai, L.; Lv, S.; Ye, Y.; Chen, Y.; Zhong, T.; Yu, X.; Xiao, Y. Rapid and Sensitive Detection of Polycyclic Aromatic Hydrocarbons in Tea Leaves Using Magnetic Approach. Foods2023, 12, 2270.
Zhao, X.; Feng, X.; Chen, J.; Zhang, L.; Zhai, L.; Lv, S.; Ye, Y.; Chen, Y.; Zhong, T.; Yu, X.; Xiao, Y. Rapid and Sensitive Detection of Polycyclic Aromatic Hydrocarbons in Tea Leaves Using Magnetic Approach. Foods 2023, 12, 2270.
Abstract
A rapid and efficient method using an alkyl functionalized magnetic nanoparticles-based extraction technique combined with Ultra-High Performance Liquid Chromatography was developed for the detection of trace amounts of polycystic aromatic hydrocarbons in tea leaves. As a popular coating for chromatographic column packing materials, C18-alkyl has been demonstrated to be effective in separating polycystic aromatic hydrocarbons. And the magnetism of the nanomaterials accelerates the extraction process while their high surface ratio enables desirable dispersity in the sample matrix. Meanwhile, the adsorbents can be washed and reused 30 times without compromise on recovery, which greatly reduced the budget. The effects of various parameters were investigated and optimized, and the recoveries for five analytes were in the range of 84.8–103.7%. The reproducibility rate of intra-day and inter-day were below 7.1% and 11.3% respectively. The limits of detection and limits of quantification ranged from 1.69–9.97 ng g-1 and 5.12–30.21 ng g-1, indicating satisfactory sensitivity. Thus, the proposed methodology is rapid, highly efficient, and economical, and it expands the application of magnetic cleanup approaches in complex food matrices.
Keywords
Polycyclic aromatic hydrocarbons; Tea; Magnetic solid phase extraction; UPLC; Nanoparticles
Subject
Chemistry and Materials Science, Analytical Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
