This project, intended for an undergraduate analytical chemistry course, is a hybrid of two analytical methods for the determination of dissolved oxygen in a local pond. Standardized sodium thiosulfate—prepared through iodometric titration—will be used to treat pond water samples by the Winkler Method to determine dissolved oxygen amounts. A calibrated dissolved oxygen probe will also be employed simultaneously on the samples to compare manually-determined dissolved oxygen concentrations to Vernier readings; statistical analyses on the two results will be performed to assess quality control differences between methods. The study will be spread out during a three-week span so the effects of temperature and atmospheric pressure changes on dissolved oxygen levels may also be observed. The results will be evaluated to conclude if the local pond has the biological capacity of supporting aquatic life.

Analysis of a local pond for dissolved oxygen: Hybrid of two analytical methods

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.