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Abstract
This work presents the results of the determination of total hydrocarbons in marine samples using conventional infrared grating spectrometers and Fourier transform infrared spectrometers. These results given by the two methods are compared and discussed. Fourier transform infrared spectroscopy allows many difficult measurements to be made much more easily. The importance of this technique is pointed out as regards the detection threshold of the hydrocarbons, the accuracy, the sensitivity and the considerable time saving.
By Fourier transform spectroscopy using reflexion techniques (ATR: attenuated total reflectance or MIR: multiple internal reflexions) oil slicks on surface waters can also be analyzed directly without any previous chemical treatment. Other examples are also discussed and demonstrate the powerful tool of Fourier transform infrared spectroscopy for the analysis of hydrocarbons in the marine environment.
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