Table 1. Component of the PAES Detected by GC-MS.

Retention time (min)	Species	Formula
1.4	Oxygen	O2
1.453	Acetaldehyde	CH3CHO
1.517	Ethanol	CH3CH2OH
1.730	1-Propanol	CH3CH2CH2OH
1.887, 1.940	Butane-1,4-diol	C4H10O2
2.017	Hydrogen peroxide	H2O2
2.073	Acetic acid	CH3COOH
2.1–2.2	Peroxyacetic acid	CH3COOOH
2.947	Ethane, 1,1-diethoxy-	C6H14O2