Table 2. List of ions observed in both SFE of a single HeLa cell and the methanol-extracted cell.

MeOH extracts		SFE of single cell		δm (mDa)
m/z	Intensity	m/z	Intensity
Positive ion mode
526.422	18011	526.425	4440	−2.75
Negative ion mode
171.137	4602.5	171.139	31818	−1.87
269.242	5924	269.245	40638	−2.82