Determining dissolved oxygen in water: Titration or direct measurement?

Dissolved oxygen is a term describing the amount of oxygen molecules (O₂) which are dissolved in a liquid phase under certain conditions. In this white paper, two different methods for the analysis of dissolved oxygen, titration and direct measurement, are compared and contrasted to help analysts determine which method is more suitable for their specific applications. Here, Metrohm primarily focuses on the determination of dissolved O₂ in water. However, the same principle applies for other liquid phases such as non-alcoholic or alcoholic beverages.