A study on the pretreatment of egg and dried pork for determination of selenium using ICP/MS

Abstract

A pretreatment procedure was performed to improve recovery of selenium from enriched egg and dried pork. Samples were digested with only HNO3 in beaker at 150 for 3 hrs, and Se was determined by ICP-MS. Recovery of selenium was 94.2%, and its C.V. value was 2.48%. The analytical results of Se by this method were 0.13 - 2.71 mg/kg for egg and 0.36 - 4.19 mg/kg for dried pork.