出口食品中香豆素、6-甲基香豆素、二氢香豆素、7-甲氧基香豆素、醋硝香豆素、7-乙氧基-4-甲基香豆素含量的测定 液相色谱-质谱/质谱法出口食品中香豆素、6-甲基香豆素、二氢香豆素、7-甲氧基香豆素、醋硝香豆素、7-乙氧基-4-甲基香豆素含量的测定 液相色谱-质谱/质谱法Determination of coumarin,6-methylcoumarin,dihydrocoumarin,7-methoxycoumarin,acenocoumarol,7-ethoxy-4-methylcoumarin residues in foods for export - LC/MS/MS method