Organizations: Contaminant fate processes Variables: electric_conductivity Keywords: high resolution mass spectrometry MetFrag Substances: 4-Formylaminoantipyrin (4-FAA) (WSJBSKRPKADYRQ-UHFFFAOYSA-N) 18-beta-Glycyrrhetinic acid (MPDGHEJMBKOTSU-YKLVYJNSSA-N)