Table 2 Chemical shifts of nicotine in e-liquids measured in D2O.

From: Physical and chemical assessment of 1,3 Propanediol as a potential substitute of propylene glycol in refill liquid for electronic cigarettes

 

Ha

Hb

Hc

CH3

Hd

He

Hf

Hg

PDO

3,18

3,02

2,26

2,00

8,34

8,34

7,73

7,33

PDO + VG + H2O

3,28

3,12

2,37

2,09

8,43

8,40

7,81

7,42

Nicotine 1,8 wt % formulation in the buffered conditions

 

Ha

Hb

Hc

CH3

Hd

He

Hf

Hg

pH 7

3,65

3,29

2,66

2,26

8,42

8,39

7,80

7,38

pH 8

3,39

3,14

2,44

2,11

8,37

8,35

7,75

7,35

pH 10

3,17

3,02

2,26

1,99

8,34

8,31

7,72

7,33

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