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By Kassim T.A., Simoneit B.R.T. (eds.)

ISBN-10: 3642074960

ISBN-13: 9783642074967

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Additional info for Pollutant-Solid Phase Interactions.. Mechanisms, Chemistry, and Modeling Part E

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398]. Tena et al. [399] screened PAHs in soil by on-line fiber-opticinterfaced SFE spectrometry. ) [192, 366, 380, 400–404]. The size of the systems can vary, but the more common configurations use between 100 ml and 200 ml of solvent to extract 20–200 g of sample. Larger systems can be used, but require proportionally more solvent. It is essential to match the solvent polarity to the solute solubility and to wet the matrix thoroughly with the solvent when extraction commences. Sediments and soils need to be thoroughly wetted with solvent to obtain an efficient extraction.

Moreover, butyltin accumulation in other marine vertebrates indicated greater accumulation in various organs [280, 282, 295, 306]. Desorption of organotins from harbor sediments has been suggested as source of contamination of the aquatic environment [289, 307]. To study the occurrence and fate of organotins in the environment, in particular their transport and degradation in sediments and at the sediment-water interface, as well as their interactive characteristics with the different solid phase systems, precise and sensitive analytical methods are needed for the aqueous and solid phases, respectively.

Chloroguaiacols, chlorocatechols) is complicated by the different sorption processes that control their binding within the soil-sediment structure [411–413]. The free, physically adsorbed chlorophenolics can be extracted with solvent, but this may only account for 1–5% of the total concentration of these pollutants in the sediment. Martinsen et al. [414] found that n-hexane or cyclohexane and iso-propanol 1 Organic Pollutants in Aqueous-Solid Phase Environments: Types, Analyses and Characterization 57 recovered <1% of the tri- and tetra-catechols in sediment solids.

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Pollutant-Solid Phase Interactions.. Mechanisms, Chemistry, and Modeling Part E by Kassim T.A., Simoneit B.R.T. (eds.)

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