Winkler titration

Winkler titration

[′viŋ·klər tī‚trā·shən]
(analytical chemistry)
A chemical method for estimating the dissolved oxygen in seawater: manganous hydroxide is added to the sample and reacts with oxygen to produce a manganese compound which in the presence of acid potassium iodide liberates an equivalent quantity of iodine that can be titrated with standard sodium thiosulfate.
References in periodicals archive ?
Despite its difficulty, Winkler titration is the gold standard for measuring oxygen levels.
An automated Winkler titration system was used to determine dissolved oxygen concentrations, and a salinometer was us ed to measure salinity (6).
A second technique for measuring rates of oxygen consumption was also used, the Winkler titration method (Parsons et al., 1984).
We used standard light/dark bottle technique with 5-h in situ incubation period, and the Winkler titration method to determine primary production of the estuaries.