Method for reagentless measurement of the total organic carbon c

Details Method for reagentless measurement of the total organic carbon c Method for reagentless measurement of the total organic carbon c

1995-05-09

1997-09-30

Snay, Jeffrey

Chemistry: analytical and immunological testing

Carbon containing

In an aqueous solution

436178, 210758, G01N 2161, G01N 3318

Patent

active

056725167

ABSTRACT:
A method and apparatus for the measurement of the total organic carbon (TOC) content of a liquid is shown. The inorganic carbon in the liquid is converted into carbon dioxide and removed from it. At the same time, oxygen is added to the liquid. The liquid is then exposed to ultraviolet radiation and the organic carbon thereby oxidized. This oxidized carbon, in the form of carbon dioxide, is allowed to migrate across a gas-permeable, liquid-impermeable membrane directly into a measurement chamber, where its absorption of radiation is measured to determine its concentration.

REFERENCES:
patent: 4277438 (1981-07-01), Ejzak
patent: 4517135 (1985-05-01), Szerenyi et al.
patent: 5106754 (1992-04-01), Steele et al.
patent: 5132094 (1992-07-01), Godec et al.
Jolly, C.D. et al., SAE Technical Paper 911436 (Jul. 1991).
Jeffers, E.L. et al., SAE Technical Paper 911432 (Jul. 1991).

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