Abstract
A rapid method for the determination of total hydrocarbons in random samples of oil tanker ballast water is described. A 1-l sample is treated with CCl 4 after acidification with HCl. The organic extract is analysed by measuring features in the zeroth-, first- and second-derivative infrared spectra using the Perkin-Elmer SNGLE program and by means of least-squares curve-fitting algorithms of the zeroth- or first-derivative IR spectra using the Perkin-Elmer QUEST program.
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