Identification and structural elucidation of ozonation transformation products of estrone

BMC Chemistry

Table 1 Characteristics of the frames retained for further analysis by applying the filter option

Frame number ^a	m/z	Retention time (min)	Normalized average intensities ^b			Average intensity in sample 1:8
Frame number ^a	m/z	Retention time (min)	Sample 1:0	Sample 1:1	Sample 1:5	Average intensity in sample 1:8
9	275.12930	3.51	0.009	0.062	0.614	22664
78	317.14008	3.32	0.022	0.075	0.914	5323
200	212.09456	7.38	0.050	0.486	0.863	8552
225	224.06932	7.49	0.026	0.442	0.739	6080
241	202.07396	7.33	0.049	0.483	0.926	11688
267	224.09468	7.44	0.036	0.456	0.916	7829
282	228.08983	7.40	0.039	0.297	0.694	6061
294	226.07419	7.46	0.000	0.456	0.943	6511
333	226.08574	7.40	0.000	0.417	0.652	6489
344	229.08455	7.41	0.049	0.334	0.540	5285
357	212.05852	7.46	0.041	0.466	0.784	5656
358	201.07838	7.45	0.041	0.477	0.869	7736
375	215.06937	7.46	0.044	0.451	0.566	5559
418	250.14478	4.29	0.038	0.071	0.239	9056
419	250.14525	3.70	0.027	0.086	0.303	8340
574	250.14519	2.99	0.038	0.051	0.240	8590

^a Frame number is assigned sequentially by the software according to absolute intensity in all samples. Therefore frame #1 represents the most intense frame found across all samples. ^b Average intensity of each frame was normalized to its average intensity in the samples to the control (sample 1:8).

ISSN: 2661-801X