Variables: total_organic_carbon electric_conductivity pH Keywords: high resolution mass spectrometry Substances: Acetazolamide (BZKPWHYZMXOIDC-UHFFFAOYSA-N) 18-beta-Glycyrrhetinic acid (MPDGHEJMBKOTSU-YKLVYJNSSA-N) 1-Methyl-Benzotriazole (HXQHRUJXQJEGER-UHFFFAOYSA-N)