... GC -MS 61118% 65-196 àg/kg Go 14 c t vi nm d-SPE (MgSO4, PSA, C18, nhụm trung tớnh) (UHPLC MS/ MS 70 98% 1,5-45 àg/kg Gia v 17 c t vi nm Khụng lm sch HPLC MS/ MS 75117% 2,3-146 àg/kg 26 c t vi nm ... zearalenone bng LC- MS/ MS p dng phng phỏp xỏc nh hm lng deoxynivalenol v zearalenone cho mt s sn phm trờn th trng 2 Chng 1: TNG QUAN 1.1 Tng quan v c t vi nm deoxynivalenol v zearalenone c t vi nm l ... (d-SPE) vi vic trn mt phn dch chit 21 vi cỏc cht hp ph nh PSA, MgSO4, GCB, C18 loi cht Dch chit c phõn tớch bng GC -MS( /MS) v/hoc LC- MS/ MS 2.3.2 Phng phỏp thm nh 2.3.2.1 Tớnh c hiu, chn lc ỏnh...