Variables: dissolved_oygen Substances: 4-Formylaminoantipyrin (4-FAA) (WSJBSKRPKADYRQ-UHFFFAOYSA-N) 5-Fluoro Cytosine (XRECTZIEBJDKEO-UHFFFAOYSA-N) Acetazolamide (BZKPWHYZMXOIDC-UHFFFAOYSA-N)