In this paper a method for simultaneous determination of 6 antioxidants (PG,TBHQ,BHA,OG,DG and NDGA) in animal feed by HPLC-MS/MS was described.The samples were extracted by acetonitrile and cleaned up with auto solid...In this paper a method for simultaneous determination of 6 antioxidants (PG,TBHQ,BHA,OG,DG and NDGA) in animal feed by HPLC-MS/MS was described.The samples were extracted by acetonitrile and cleaned up with auto solid phase extraction.The samples were separated by HPLC with a C8 column.The electrospray (ESI) negative mode detected by MRM is used for MS/MS.The detection limits were 2 mg/kg,recoveries and RSDs were 84%-106% and 3.0%-9.0% at this concentration respectively.The method was highly efficient and sensitive,stable and precise.展开更多
文摘In this paper a method for simultaneous determination of 6 antioxidants (PG,TBHQ,BHA,OG,DG and NDGA) in animal feed by HPLC-MS/MS was described.The samples were extracted by acetonitrile and cleaned up with auto solid phase extraction.The samples were separated by HPLC with a C8 column.The electrospray (ESI) negative mode detected by MRM is used for MS/MS.The detection limits were 2 mg/kg,recoveries and RSDs were 84%-106% and 3.0%-9.0% at this concentration respectively.The method was highly efficient and sensitive,stable and precise.