Method for monitoring sulfates and chlorides at low concentratio

Details Method for monitoring sulfates and chlorides at low concentratio Method for monitoring sulfates and chlorides at low concentratio

1990-01-25

1991-03-26

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415319, 204416, 204419, G01N 27333

Patent

active

050026445

ABSTRACT:
A method for monitoring low anion concentrations, and particularly sulfate concentrations in aqueous solutions is provided which includes the steps of adjusting the pH of the solution to substantially reduce the presence of hydroxides therein, mixing a nonionic solvent with the solution selected from the group consisting of alcohols, aldehydes, ketones, nitriloes and other water soluble organic compounds which do not contain sulfonate groups, exposing the solution and solvent mixture to an electrode selective for sulfate ions, exposing the mixture to a counter electrode and measuring the difference in voltage across the electrodes. A chilling apparatus may be added to reduce solvent consumption and lower the detection limit.

REFERENCES:
patent: 3563874 (1971-02-01), Ross et al.
patent: 3672962 (1972-06-01), Frant et al.
Durst, "Ion-Selective Electrodes", (1969), p. 101.
Orion Research, Analytical Methods Guide, (1972), pp. 4, 13, 14.

Affiliated with

Also associated with

Rating

Method for monitoring sulfates and chlorides at low concentratio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for monitoring sulfates and chlorides at low concentratio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for monitoring sulfates and chlorides at low concentratio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-615275