Abstract:The applicability of three national standard methods including inductively coupled plasma mass spectrometry (ICP-MS), hydride generation atomic fluorescence spectrometry (HG-AFS), and silver salt method used to determine total arsenic content in Antarctic krill (Euphausia superba) and its related products were evaluated in this study. The accuracy of the ICP-MS, HG-AF, and silver salt methods were 100.26%~110.48%, 82.68%~98.50%, and 89.64%~94.89%, respectively, and the RSD was less than 5% in all cases. The results of the three national standard methods were consistent. However, compared with the silver salt method, the ICP-MS and HG-AFS methods were complicated and expensive. Therefore, the silver salt method could be chosen as a quick method for determining the total arsenic content in Antarctic krill and its related products. The content of total arsenic in Antarctic krill, Antarctic krill powder, and Antarctic krill oil were 0.44~0.45 mg/kg, 1.04~1.91 mg/kg, and 0.52~5.50 mg/kg, respectively. To accelerate the establishment of methods to evaluate arsenic morphology and estimate inorganic arsenic quantitatively in Antarctic krill and its related products will be important in the future.
