Determination of Progestin Residues in Fish by UPLC-Q-TOF/MS Coupled with QuEChERS

Table 3

Recoveries and relative standard deviations (%) of 10 progestins in fish (n = 7).

Spiked level compounds	5 ng/g		10 ng/g		20 ng/g
	Recoveries	RSDs	Recoveries	RSDs	Recoveries	RSDs
Norethisterone	88.55	5.49	85.85	4.12	87.97	5.25
17α-hydroxyprogesterone	88.15	5.02	85.71	6.81	102.43	7.95
D-methylnorethindrone	105.44	5.68	88.40	4.30	90.16	6.48
17α-hydroxyprogesterone acetate	91.73	3.83	95.71	4.01	108.96	6.18
Megestrol	88.66	7.60	86.58	6.88	87.79	6.60
Medroxyprogesterone	104.84	4.69	103.81	3.40	89.77	6.30
Chlorprogestone acetate	96.42	7.95	109.65	2.66	97.18	7.59
Medroxyprogesterone acetate	87.97	8.30	91.24	7.31	107.59	6.33
Melengestrol acetate	89.56	8.59	99.97	7.22	91.40	8.83
Progesterone	106.36	8.28	91.58	4.63	117.08	7.76