Table 1 Concentration of ions in PGNO treated DI water and 0.5 mM phosphate buffer.

From: Dynamics of nitric oxide level in liquids treated with microwave plasma-generated gas and their effects on spinach development

Ions

DI water (mg/L)

0.5 mM phosphate buffer (mg/L)

Non-treated

PGNO-treated

Non-treated

PGNO-treated

N2 injection (min)

N2 injection (min)

0

10

30

60

0

60

Anion

Cl

0.0109*

0.0612

0.0792

n.d.**

0.0414

0.0041

0.0589

0.0555

NO2

n.d.

39.66

33.34

35.08

38.97

0.0014

33.19

30.66

NO3

n.d.

130.38

128.87

110.20

137.58

n.d.

113.23

130.21

SO4

0.2936

0.235

0.242

0.254

0.294

0.138

0.243

0.242

PO4

0.0673

0.369

0.091

n.d.

n.d.

31.61

24.06

31.48

Cation

Li

n.d.

0.105

0.105

0.105

0.105

0.105

0.105

0.105

Na

n.d.

n.d.

0.249

0.486

0.586

n.d.

0.931

0.843

NH4

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

K

n.d.

0.821

0.692

0.693

0.683

12.83

10.30

13.61

Mg

n.d.

0.0532

0.0564

0.0506

0.0536

0.0471

0.0561

0.0565

Ca

0.773

0.830

0.851

0.813

0.841

0.786

0.844

0.852

  1. *Concentrtion of ion in DI water and 0.5 mM potassium phosphate buffer (pH 6.0) treated with PGNO for 50 min. Before PGNO treatment, O2 was removed by N2 injection for 0, 10, 30, or 60 min.
  2. **Not detectable.
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