I-Cod yokugaya i-Cod yiziqukathi ezikhethekile ezisetshenziswa ekuhlaziyweni kwamakhemikhali zokunquma isidingo se-oxygen yamakhemikhali (i-cod) yesampula yamanzi. I-COD iyisilinganiso senani le-oksijini elidingekayo kumakhemikhali amakhemikhali ama-organic kanye nama-inforganic akhona emanzini.
Lezi zinhlaka ngokuvamile zenziwa ngengilazi esezingeni eliphakeme noma ingilazi ye-borosilil, engamelana nokuphendula kwamakhemikhali futhi ingamelana namazinga okushisa aphezulu adingekayo kwinqubo yokugaya i-COD. Ama-vials enzelwe ukubamba ivolumu ethile yesampula yamanzi kanye ne-reagents edingekayo ekuhlolweni kwe-COD.
