The traditional way of measuring oxygen concentration in a water sample has been to use wet chemistry techniques e.g. the Winkler titration method.
This particular use can be set up to measure the oxygen content of water through a long series of reactions in the Winkler test for dissolved oxygen.
Winkler test for dissolved oxygen: Used to determine oxygen concentration in water.
Test cricket | Test | oxygen | Crash Test Dummies | Henry Winkler | test pilot | River Test | test | Oxygen | Common Admission Test | Turing test | Test Pilot | Rorschach test | Old Dalby Test Track | Woomera Test Range | The Old Grey Whistle Test | Test Match Special | Winkler, Manitoba | Winkler | Test Valley | Test pilot | Test Icicles | Test Dept | SAT Reasoning Test | Oxygen (TV channel) | women's Test match | Winkler test for dissolved oxygen | Test of English as a Foreign Language | Sacramental Test Act 1828 | Peter and the Test Tube Babies |