Total Organic Carbon (TOC)

​TOC Theory

TOC is a popular analytical technique in water quality testing, as seen in many official analytical methods today. The United States Pharmacopoeia (USP), European Pharmacopoeia (EP) and Japanese Pharmacopoeia (JP), recognize TOC as a required test for purified water and water for injection (WFI). Click here for additional information on the TOC Theory.

​TOC Overview

TOC analyzers can measure:

  • Total carbon (TC)
  • Total organic carbon (TOC)
  • Inorganic carbon (IC)
  • Nonpurgeable organic carbon (NPOC)

TOC measurement involves:

  • Oxidizing organic carbon in a sample
  • Detecting and quantifying the oxidized carbon (CO2)
  • Presenting the result in units of mass of carbon per volume of sample

NDIR Pressurization Overview

Pressurized detection, or static read, is a technique used for concentrating the CO2 ​produced by the oxidation of the sample. The technique can be used for both qualitative and quantitative analysis. In this section the basics of the pressurization technique will be described.

Lotix Combustion TOC Analyzer

Lotix Combustion

TOC users from around the globe requested an instrument that meets the following criteria: simplicity, performance, and durability.

The Lotix TOC Combustion analyzer is designed to accurately measure carbon content in aqueous matrices down to the ppb level. It uses proven high temperature combustion, oxidation of carbon material into carbon dioxide, and detection using a new Non-Dispersive Infrared (NDIR) detector.

Lotix is the ultimate solution for waste water, drinking and surface water, ground water, sea water, and other hard to oxidize matrices with an economical price to fit any budget.​

Applications and Industries

TOC sampling and analysis are used in a wide range of applications in several industries.

  • Environmental
  • Pharmaceutical
  • Petrochemical

Methods

  • Standard Method 5310B
  • EPA 415.1
  • EN-12260
  • DIN-EN-ISO 11905-2
  • EPA 415.1 and 9060A
  • Standard Method 5310B
  • ASTM D2579
  • ISO 8245
  • AOAC 973.47
  • USP 643​

LSS Boat – Lotix Solids Sampler

LSS Boat

TOC users from around the globe requested simplicity, performance, and durability. The Teledyne Tekmar LSS Boat Module is an ideal add-on to the Lotix Total Organic Carbon (TOC) analyzer. It uses high-temperature combustion to accurately measure carbon content in a variety of matrices: soils, sludges, sediments, particulate-laden liquids and hard-to-oxidize samples.

Compact and simple, the LSS Boat is designed to work with the Lotix making it the ultimate solution for all of your TOC needs both liquid and solid for years of operation with an economical price to fit any budget.​​

Torch Combustion TN Analyzer

Torch Combustion

The Torch utilizes a patent pending Static Pressure Concentration (SPC) for the analysis of TOC/TN using high temperature combustion.

The Torch Analyzer contains a built in autosampler with three vial rack choices and PC driven control. This features automated calibration and Intellidilution which automatically dilutes over-range samples to within the working calibration range. Maintenance is simplified by design allowing easy access to all areas of the unit.

All of these features and competitive price positioning make this system ideal in keeping costs down and maintaining productivity in the laboratory. ​

NDIR Pressurization Overview

Pressurized detection, or static read, is a technique used for concentrating the CO2produced by the oxidation of the sample. The technique can be used for both qualitative and quantitative analysis. In this section the basics of the pressurization technique will be described.

Methods

  • ​​EPA 415.1, 415.3 and 9060A,
  • Standard Method 5310B,
  • EP 2.2.44, ISO 8245,
  • EN 1484
  • USP 643 (Chapter 24),
  • ASTM D2579,
  • prENV 13370,
  • AOAC 973.47

Fusion UV/Persulfate Analyzer

Fusion UV/Persulfate Analyzer

Almost 40 years ago, Dohrmann began designing and manufacturing premier Total Organic Carbon (TOC) Analyzers. Since joining the Tekmar family, the tradition of producing innovative laboratory TOC analyzers continues. The Dohrmann Series Fusion Total Organic Carbon Analyzer is no exception. The Fusion TOC Analyzer offers more flexibility, intelligence and user friendliness making this analyzer ideally suited for the most demanding laboratory needs.

Walk-Away Automation and Intuitive Software Control
The Fusion Total Organic Carbon Analyzer utilizes powerful UV Persulfate oxidation allowing superior carbon liberation from even the most challenging matrixes. By implementing the patented Static Pressure Concentration (SPC) technology, the Fusion Total Organic Carbon Analyzer is able to achieve unprecedented low-end sensitivity from a Non-Dispersive Infrared (NDIR) detector. The Fusion Analyzer is built on the latest technology and is designed to offer productivity for a wide variety of applications.​

NDIR Pressurization Overview

Pressurized detection, or static read, is a technique used for concentrating the CO2 produced by the oxidation of the sample. The technique can be used for both qualitative and quantitative analysis. In this section the basics of the pressurization technique will be described.

Applications and Industries

  • Pharmaceutical
  • Environmental

Methods

  • ​​EPA 415.1, 415.3 and 9060A,
  • Standard Method 5310C, ASTM D4779 and D4839,
  • prENV 13370,
  • Cleaning Validation / USP TOC Method <643> / EP 2.2.44 / JP
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