Measurement of soil pollution

Details Measurement of soil pollution Measurement of soil pollution

G - Physics

01

N

G01N 33/24 (2006.01) G01N 21/35 (2006.01) G01N 21/55 (2006.01)

Patent

CA 2589677

A soil sample of fixed volume is mixed with a drying agent (MgSO4) and then acetone. The liquid is filtered off and a sample is applied to the sensing surface of an attenuated total reflectance (ATR) device in an IR spectrometer. After evaporation of the acetone, absorption is measured in a C-H stretch region (e.g. 2950 cm-1) to provide a value indicative of the amount of oil in the sample.

Un échantillon de sol de volume fixe est mélangé avec un agent de séchage (MgSO4) et ensuite de l'acétone. Le liquide est éliminé par filtration et un échantillon est appliqué à la surface de détection d'un dispositif à réflectance totale atténuée dans un spectromètre infrarouge. Suite à l'évaporation de l'acétone, une absorption est mesurée dans une zone d'élongation de liaisons CH (par exemple, 2950 cm-1) pour fournir une valeur représentative de la quantité d'huile dans l'échantillon.

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