MYOCARDIAL OXYGEN AVAILABILITY BY POLAROGRAPHIC METHOD

Polarographic Oxygen Electrode

A method has been developed for the continuous monitoring of oxygen tension in solutions and gases. The oxygen is reduced at a platinum surface which is covered with a plastic membrane. The silver-silver oxide reference electrode is also included under the membrane. Drift is less than 10 per cent for a period of days, and temperature compcnsation is possible. A number of uses to which it has be...

Determination of permeability and diffusivity of oxygen in polymers by polarographic method with inert gas

A modified polarographic method with inert gas for determination of the oxygen permeability in polymers immersed in liquids is described. Owing to the stream of an inert gas towards polymer from the cathode side, lateral oxygen diffusion (edge effects) is minimized. Unlike the standard Fatt method, the method with inert gas is suitable also for thick samples and, therefore, for high-permeable m...

polarographic method versus analytical method in determination of dissolved oxygen and n-no3

polarographic method is considered as an alternative laboratory technique for analytical method in determination of dissolved oxygen and n-n03. analytical method is a time consuming technique and is subject to several interferences due to some of constituents in sewage. in this laboratory research, the polar graphic technique with, mercury drop electrodes and titrometric method were applied in ...

Nitrite Determination by the Differential Pulse Polarographic Method

In this work; the optimum conditions of the differential pulse polarographic method conditions of the polarographic reduction of diphenylnitrosoamine which was occured by nitrite ion and diphenylamine in perchloric acidic medium and thiocyanate ion as catalyst, were determined. At these polarogram conditions, nitrite ion gave a maximum diffusion current at -0.56 V. The differential pulse polaro...

Oxygen tension of tissues by the polarographic method. IV. Skin oxygen tension vs. arterial oxygen saturation; relationship to oxyhemoglobin dissociation curve.