Total Organic Carbon (TOC)

Written by Rahul Verma | Updated: February 12, 2026

Total Organic Carbon (TOC)

Written by Rahul Verma |  Updated: February 12, 2026
ASTM E997

Total Organic Carbon (TOC)

In a broad range of systems, TOC is measured at various concentrations. By oxidizing the organic molecules to quantitative forms, TOC is generally measured.

Depending on the kind, concentration, and analytical needs of the TOC being evaluated, a variety of oxidation and detection methods are used (e.g. speed, sensitivity).

  • Combustion at a high temperature of 1,200°C in an environment rich in oxygen. Scrubber tubes are used to reduce interference before non-dispersive infrared absorption is used to detect the CO2 generated (NDIR).
  • Platinum catalyst-catalyzed high-temperature catalytic oxidation at 680°C in an oxygen-rich atmosphere inside tubes, followed by NDIR.
  • Using heat and a chemical oxidizer, typically persulfate, in a thermochemical oxidation process.
  • Using UV light and a chemical oxidizer, commonly persulfate, to perform photochemical oxidation.
  • UV photo-oxidation either by alone or in conjunction with a catalyst The most accurate, low-maintenance approach for figuring out TOC in ultra-pure fluids is the UV oxidation technique.

Total Organic Carbon (TOC) measurement has various industrial uses, such as Water Quality Control, Quality Control in Food Production, Semiconductor and Electronics Manufacturing, Petrochemical Industry, Pharmaceutical Industry, Chemical Manufacturing, etc. 

Other Useful Resources
Scanning electron microscope testing
Differential scanning calorimetry testing
High performance liquid chromatography testing
Semi conductor laboratory
Application of uv spectroscopy

ABOUT AUTHOR

Rahul Verma

Rahul Verma is a dedicated Materials Scientist and Testing Associate with strong expertise in materials characterization, thermal spray coatings, and advanced manufacturing technologies. With a solid foundation in Materials Science & Engineering and hands-on research in additive manufacturing, he specializes in bridging material behavior insights with practical engineering solutions. Currently serving as a Materials Testing Associate at Infinita Lab Inc. (USA), Rahul ensures precise material testing, quality assurance, and customer-focused solutions that help clients overcome complex materials challenges.

His role blends technical rigor with operations and project management, driving efficiency, reliability, and client satisfaction. Rahul’s journey spans academic and industrial research at IIT Patna, where he has contributed to advancements in plasma spray techniques, AI/ML-driven material design, and additive manufacturing.

He has also co-founded GreeNext Materials Group, pioneering sustainable battery regeneration technologies that have a significant impact on both industrial and societal applications. With professional experience in operations leadership, R&D, and client engagement, Rahul brings a results-oriented and analytical approach to materials engineering. He continues to advance innovation in coatings, material performance, and testing methodologies—focusing on durability, sustainability, and real-world applications.

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