Organic Matter in Kraft Pulp Mill Effluent in Hiro Bay

Abstract

Sea water of Hiro Bay containing a kraft pulp mill effluent was analyzed by means of gas chromatography and mass spectrometry. Sea water (3 1) was filtered by glassfiber filter and extracted with chloroform. The chloroform extract was then concentrated under reduced pressure. The concentrated chloroform extract was fractionated on silica gel column. The first fraction, containing aliphatic hydrocarbons, was eluted with hexane. And second frac- tion, containing oxygenated compounds, with benzene. Under the comparison of mass spectra and gas chromatographic data of these concentrates with those of authentic samples, the reten- lion time was adopted which served as a method of identification, for which the published data were also used at the same time.
Thirty components were identified. They were ce-pinene, 8-pinene, fenchone, camphor, borneol, a-terpineol, longiforene, toluene, p-cymene, guaiacol, vanillin, 2, 6-di-t-butyl-4- ethylphenol, , fatty acids, aliphatic hydrocarbon (normal), and dimethyl disulfide.