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Table 1 Concentrations of Dissolved Hydrogen in Hydrogen Water, Determined by Electrochemical and Oxidimetry Methods

From: A convenient method for determining the concentration of hydrogen in water: use of methylene blue with colloidal platinum

HW

DH (mg/l)

MB-Pt

MB→DH (mg/l)

DO (mg/l)

T (centigrade)

0.8 mM

1.60

55

1.65

0.54

24.8

 

1.60

55

1.65

0.54

24.8

 

1.62

56

1.68

0.45

23.7

 

1.58

54

1.62

0.43

23.8

0.3 mM

0.62

19

0.57

1.6

25.3

 

0.62

20

0.6

1.6

25.3

 

0.60

18

0.54

2.1

23.5

 

0.62

19

0.57

2.3

23.8

0.2 mM

0.41

12

0.36

2.1

25.1

 

0.42

13

0.39

2.3

25.1

 

0.41

13

0.39

2.4

23.6

 

0.39

12

0.36

2.4

23.7

0.1 mM

0.22

5

0.15

3.0

24.8

 

0.22

5

0.15

3.4

24.8

 

0.20

4

0.12

4.3

23.8

 

0.19

4

0.12

4.4

23.7

  1. HW: hydrogen water, DH: dissolved hydrogen, MB-Pt: number of drops of methylene blue with colloidal platinum at the titration endpoint, MB→DH: calculated value of DH from MB-Pt, DO: dissolved oxygen, T: water temperature. DO was measured by a DO meter (model D-25 DO meter, Horiba).
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Medical Gas Research

ISSN: 2045-9912

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