Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
39 words
Method of quantitatively determining gas concentration in a fluid by (A) transforming gas from the fluid onto an electrode surface in contact with electrolyte as an adsorbed species; and (B) electrochemically determining quantitatively the amount of said adsorbed species.
Claim 2
Dependent Claim
39 words
Method of quantitatively determining gas concentration in a fluid by (A) transforming gas from the fluid onto an electrode surface in contact with electrolyte as an adsorbed species; and (B) electrochemically determining quantitatively the amount of said adsorbed species.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the electrode includes a platinum group metal or gold.
Claim 4
Dependent Claim
10 words
The method of claim 2 including an electrode cleaning step.
Claim 5
Dependent Claim
22 words
The method of claim 2 wherein steps (A) and (B) are potentiostatically controlled and the current flowing during step (B) is integrated.
Claim 6
Dependent Claim
20 words
The method of claim 4 including step (C) for substantially concurrently and independently measuring the oxygen content of the fluid.
Claim 7
Dependent Claim
24 words
The method of claim 1 wherein steps (A) and (B) are potentiostatically and galvanostatically controlled, respectively, and the current of step (B) is integrated.
Claim 8
Dependent Claim
21 words
The method of claim 6 including a step (C) for substantially concurrently and independently measuring the oxygen content of the fluid.
Claim 9
Dependent Claim
13 words
The method of claim 2 wherein steps (A) and (B) are galvanostatically controlled.
Claim 10
Dependent Claim
18 words
The method of claim 8 including a step (C) for substantially concurrently and independently measuring the oxygen content.
Claim 11
Dependent Claim
36 words
The method of claim 2 wherein step (A) occurs at controlled potential and step (B) occurs at open circuit potential, and the open circuit potential is measured and related to amount of the adsorbed species formed.
Claim 12
Dependent Claim
35 words
The method of claim 2 wherein step (A) occurs at constant current and step (B) occurs at open circuit potential, and the open circuit potential is measured and related to amount of adsorbed species formed.
Claim 13
Dependent Claim
29 words
Method of claim 1 wherein the amount of gas transformed into the adsorbed species is determined by the diffusion of gas from the fluid bulk to the electrode surface.
Claim 14
Dependent Claim
18 words
The method of claim 12 wherein the diffusion is controlled by using an adsorption step of predetermined duration.
Claim 15
Dependent Claim
11 words
The method of claim 1 wherein said gas is carbon dioxide.
Claim 16
Dependent Claim
11 words
The method of claim 1 wherein said gas is carbon monoxide.
Claim 17
Dependent Claim
11 words
The method of claim 1 wherein said gas is hydrogen sulfide.
Claim 18
Dependent Claim
23 words
The method of claim 12 wherein said diffusion of gas from the fluid bulk to the electrode surface is through a hydrophobic membrane.