色谱法
固相萃取
检出限
吸附剂
黄曲霉毒素
萃取(化学)
高效液相色谱法
分子印迹聚合物
化学
吸附
选择性
食品科学
有机化学
催化作用
作者
Ramya Thati,Bala Subrahanyam Seetha,Pallavi Alegete,Mohana Krishna Reddy Mudiam
出处
期刊:Food Chemistry
[Elsevier]
日期:2024-02-01
卷期号:433: 137342-137342
被引量:2
标识
DOI:10.1016/j.foodchem.2023.137342
摘要
A new dummy template-based molecularly imprinted dispersive micro solid-phase extraction (MI-d-µSPE) coupled with HPLC-FLD developed for the simultaneous determination of four aflatoxins (B1, B2, G1, G2) in various food matrices. The synthesized MIP was used as a dispersive solid-phase extraction (dSPE) sorbent for aflatoxins extraction. The chemometric approach was used to identify the optimum conditions of dSPE. The results showed the amount of MIP sorbent (55 mg), adsorption time (12.5 min), and %ACN (75%) were significant extraction parameters. The method has a detection limit in the range of 0.059-0.208 µg kg-1 and a quantification limit in the range of 0.197-0.694 µg kg-1 for aflatoxins. The intra- and inter-day precision was less than 5%, and recoveries were 79.1-109.4%. The expanded uncertainty of the developed method was found to be 2.9-22.8%. The new MI-d-µSPE with HPLC-FLD method was applied for 37 food matrices.
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