
Short CommunicationDisk-based solid phase extraction for the determination of diclofenac and steroidal estrogens E1, E2 and EE2 listed in the WFD watch list by GC-MS
Keywords: ACN; acetonitrile; BSTFA; N,O-bis(trimethylsilyl)trifluoroacetamide; DF; diclofenac; EDC; endocrine disrupting compound; EtAc; ethyl acetate; E1; estrone; E2; 17β-estradiol; EE2; 17α-ethynyl estradiol; HLB; hydrophilic lipophilic balanced copolymer; MeO