The investigation of electrospun polymer nanofibers as a solid-phase extraction sorbent for the determination of benzimidazoles in pork

摘要

A novel micro-extraction procedure was developed through the use of an electrospun polymer nanofiber as a solid-phase extraction (SPE) sorbent to directly extract benzimidazoles in pork. The target compound was then monitored by a high performance liquid chromatography with ultraviolet detector (HPLC-UV) system. The eluted solvent was investigated meanwhile. Under the optimized conditions, a linear response for benzimidazoles over the range of 20-1000 ng mL~(-1) was achieved with the γ~2>0.99. The recoveries were in the range of 95.4%～101.2%. RSDs of intra-day and inter-day assays were 3.5%～6.3% and 5.7%～9.9%. The method is simple, sensitive, accurate and repeatable, which can be used for the determination of benzimidazoles in pork.