C - Chemistry – Metallurgy – 12 – Q
Patent
C - Chemistry, Metallurgy
12
Q
C12Q 1/02 (2006.01) C12M 1/34 (2006.01) C12Q 1/04 (2006.01) G01N 27/06 (2006.01) G01N 33/44 (2006.01)
Patent
CA 2187358
The invention concerns a procedure for measuring the biodegradability of a sample, the sample being placed in a culture solution, the solution being aerated, the quantity of carbon dioxide liberated from the solution being determined, and the biodegradability being determined on the basis of the liberated carbon dioxide quantity. As taught by the invention, the carbon dioxide which has been formed is conducted into a non-precipitating alkali solution, the electrical conductivity of this solution is measured, and the quantity of carbon dioxide absorbed in the solution is determined on the basis of electrical conductivity.
Procédé de mesure de la biodégradabilité d'un échantillon, selon lequel l'échantillon est placé dans une solution de culture, cette solution étant aérée. La quantité de dioxyde de carbone à libérer par la solution est déterminée. La biodégradabilité est déterminée sur la base de la quantité de dioxyde de carbone libérée. Selon cette invention, le dioxyde de carbone qui s'est ainsi formé est transféré dans une solution alcaline non précipitante. La conductivité électrique de cette solution est mesurée, la quantité de dioxyde de carbone absorbée par la solution étant déterminée sur la base de la conductivité électrique.
Ridout & Maybee Llp
Valtion Teknillinen Tutkimuskeskus
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