Objective:To develop a new method for the simultaneous determination of diethylstilbestrol(DES),estrone(E1),estradiol(E2) and estriol(E3) in shrimp,crayfish,crab by GC/MS and GC/MS/MS.

• 目的:建立海产品中己烯雌酚(DES)、雌酮(E1)、雌二醇(E2)、雌三醇(E3)的GC/MS和GC/MS/MS分析方法。