How does the PeCOD Analyzer determine oxygen demand?

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The PeCOD® Analyzer performs advanced oxidation on a small volume of sample. As the reaction proceeds, electrical charge is generated proportional to the oxygen being consumed. The PeCOD® analyzer captures this generated charge, plotting the output current from the reaction over time as shown below. The area under the curve generated by plotting current over time is proportional to the oxygen demand of the sample. A blank charge is also determined for each sample, and subtracted from the total charge to ensure accuracy.

View the detailed overview of peCOD technology and calculations here.

peCOD Oxidation Profile

 

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