MEASUREMENT OF SOIL POLLUTION

摘要

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.