The method shows high specificity, and the calibration curve has a good correlation coefficient with R2 greater than 0.995; the limit of detection (LOD) and limit of quantification (LOQ) were 1.88 µg / kg and 6.26 µg / kg, respectively; The relative repeatability standard deviation (RSRr) was in the range of 2.46 - 7.34% and the recovery (R) was in the range of 85.7 - 100%.