ResourceEnvironmental
Switching from COD/BOD5 to TOC
7 Jul 2026This case study from Analytik Jena examines the transition from chemical oxygen demand (COD) and 5-day biochemical oxygen demand (BOD₅) testing to total organic carbon (TOC) analysis for monitoring organic pollution in wastewater. It highlights the advantages of TOC, including faster analysis, higher throughput, lower operating costs, reduced chemical waste, and improved automation, while presenting cost-of-ownership comparisons for routine laboratory testing.
Resource details:
Resource type: Case study
Page count: 6
Read time: 9 mins
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Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity. Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.TOC MeasurementsWater AnalysisAnalytical methods used to test the purity of drinking water include determining the level of contaminants abides to the level set by the Environmental Protection Agency (EPA).Waste Water