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Differential pulse polarography of the catalytic waves in serum from patients with urological cancers.

Catalytic waves obtained from the perchloric acid-soluble fraction of serum in the presence of hexaminecobalt trichloride appear to conform to a Langmuir adsorption isotherm. Wave heights for sera from patients with untreated urological cancers significantly exceed those from normal subjects. In general, treatment with diethylstilbestrol decreased the wave height. Effects of some other chemotherapeutic agents on wave heights are also noted.

Antineoplastic Agents↗

Polarography: an oxygen survey correlating oxygen transmissibility to "EOP" values.

A polarographic oxygen electrode was used to measure the oxygen transmissibility of seven contact lenses of varying water content and center thickness. A similar electrode was used to measure the oxygen uptake following wear of these same contact lenses for both the open- and closed-eyelid conditions on five young healthy subjects. Linear regression revealed a strong correlation between oxygen transmissibility and equivalent oxygen percentage (EOP) values for both the open- and closed-eyelid conditions. This strong correlation between these two oxygen parameters shows both are useful in predicting the oxygen tensions across the tear-epithelial interface during contact lens wear.

Adult↗