Process for the quantitative determination of the carbon of organic compounds in water

US4217108A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Werner Melzer · Liederbach, DE
• Dieter Jaenicke · Hofheim, DE
• Helmut Schroeder · Wiesbaden, DE

Key dates

• Filing date: Mar 13, 1979
• Grant date: Aug 12, 1980
• Expiry date: Mar 13, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/235
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In the determination of the quantity of carbon present in water in the form of organic compounds the carbon-containing water is first evaporated in the presence of oxygen at a temperature of about 900.degree. C. Care must be taken that the oxygen does not exceed 1 to 5 volume %, calculated on the quantity of steam. Then the CO.sub.2 content is measured with a CO.sub.2 analyzer. In a second step the carbon-containing water is measured without oxygen under identical conditions. The quantity of carbon present in water in the form of organic compounds is determined from the measured CO.sub.2 concentrations.