Table 1.

Characterization of plasma activated liquids.

Gas composition	Generation time	PAL age	PAL characterization parameter
			1pH (−)23	1H2O2 (μM)23	1NO2− (μM)23	1NO3− (μM)23
0% (v/v) O2	10 min	0 days	23.61 ± 0.062	1588.9 ± 106.81	125.5 ± 17.32	149.9 ± 6.11
	20 min	0 days	13.19 ± 0.141	11215.8 ± 73.72	11.5 ± 1.91	166.8 ± 7.92
	30 min	0 days	13.10 ± 0.041	11875.7 ± 239.23	12.0 ± 3.31	161.3 ± 10.01,2
1% (v/v) O2	10 min	0 days	13.28 ± 0.132	11932.7 ± 1865.01	14.7 ± 7.51	159.6 ± 6.91
	20 min	0 days	13.14 ± 0.161,2	11376.1 ± 393.41	11.2 ± 2.51	163.3 ± 13.31
	30 min	0 days	12.94 ± 0.131A	11963.6 ± 671.01A	11.1 ± 2.41A	157.3 ± 15.91A
		3 days	4.25 ± 1.00B	2216.6 ± 900.8A	0.0 ± 0.0A	67.7 ± 25.1A
		10 days	2.93 ± 0.17A	2289.7 ± 992.6A	0.0 ± 0.0A	51.8 ± 22.9A
		30 days	2.92 ± 0.14A	2733.9 ± 798.7A	0.0 ± 0.0A	84.6 ± 12.4A

¹Effect gas composition: for each generation time and PAL age, PAL characterization parameters bearing different superscripts (no numbers in common) are significantly different (P ≤ 0.05). ²Effect generation time: for each gas composition and PAL age, PAL characterization parameters bearing different superscripts (no numbers in common) are significantly different (P ≤ 0.05). ³Effect PAL age: for each gas composition and generation time, PAL characterization parameters bearing different subscripts (no uppercase letters in common) are significantly different (P ≤ 0.05).