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  • Applied Spectroscopy
  • Vol. 52,
  • Issue 12,
  • pp. 1526-1529
  • (1998)

Direct Measurement of Carbonate Content in Soil Samples by Means of CO Laser Infrared Photoacoustic Spectroscopy

Otto Doka, Dane Bicanic, Mihaly Szucs, and Marcel Lubbers

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Abstract

CO laser infrared (IR) photoacoustic spectroscopy (PAS) at 1801 cm-1 was used to determine the content of carbonate in various soils. The PA signal is linearly proportional to the content of carbonate within the 0-30% (w/w) range; the 2% (w/w) limit of detection (LOD) is adequate for the application in practice.

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