Quantification of Piperazine in Chicken Muscle by Ultra-Performance Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry

An ultra-performance liquid chromatography-electrospray ionization tandem triple quadrupole mass spectrometry (UPLC-ESI/MS/MS) method was developed for the detection of piperazine in chicken muscle. Following extraction and purification, the chicken muscle extract was injected into the UPLC system and analyzed. Piperazine detection was performed on a triple-quadrupole mass spectrometer with the ESI interface operating in positive mode. The most sensitive mass transition from the precursor ion to the product ion was 87.1 → 44.1 for piperazine. The coefficient (R2) of piperazine was 0.9995 in the range of 1–200 μg/kg. The recovery and relative standard deviation (RSD) ranged from 102.93 to 111.46% and from 4.57 to 5.28% at 50.0, 100.0 and 200.0 μg/kg adding levels, respectively. Limits of detection (LODs) and limits of quantification (LOQs) were 0.4 and 1.0 μg/kg, respectively. This method was fully validated based on its specificity, sensitivity, linearity, precision, accuracy, matrix effect, and stability results. Compared to other researches, this new method not only omitted the derivative process, which simplify the pre-processing, but also proved a better sensitivity based on its low LOD and LOQ values.