The CM140 Total Inorganic Carbon Analyzeris a complete analytical system allowing the direct measurement of total inorganic carbon in a wide variety of sample matrices and concentrations. Combining a self-contained unit for the acidification of a sample (to evolve CO2), with a highly sensitive CO2 detector, the CM140 easily handles solid or liquid samples with concentrations from ppm levels to 100% inorganic carbon without user calibration. UIC’s analyzers are rugged, accurate and adaptable to most TIC applications.
A major advantage of the CM140 Total Inorganic Carbon Analyzer is the use of coulometric detection. Employing the principles of Faraday’s Law, the CM5015 CO2 Coulometer automatically measures the absolute mass amount of carbon dioxide evolved from sample acidification. No user-calibration is required and linear detection is available from less than 1 ug carbon to over 10,000 ug carbon. Using this 100% efficient coulometric process, relative standard deviations of 0.2% or better are common for standard material. For smaller concentrations, an absolute deviation of approximately 1 ug C is typical.
Additionally, it is possible to analyze either solid or liquid samples. Sample flasks are available in 10, 25, 50 and 100 ml sizes. Solids or liquids may be weighed directly into the sample flasks. Alternatively, liquid samples may be syringe injected through a septum.
Reaction times vary with sample type and temperature although 5 to 7 minute analyses are typical. To quicken CO2 evolution, sample heating and stirring capabilities are included within the CM5230 Acidification Module. Other features include the ability to: select different acids; add wetting/emulsifying agents; and, modify the flow path and scrubbers to optimize a particular application.
- CM140 Total Inorganic Carbon Analyzer
- UIC, Inc.
- Acidification and Coulometric Detection
- Solid or Liquid
- CM5230 Acidification Module: 10, 25, 50 or 100 mL reaction vessels; Data Handling: up to 50 samples
- 5 to 7 min
- Carbonates in Pharmaceuticals, Dissolved Carbon Dioxide in Sea Water, Carbonates in Geological Materials, Carbon Dioxide in Amine and Hydrazine, Carbonates in Black Liquors, Carbonates in Food
- less than 1 ug to over 10,000 ug