Intercomparison study of liquid-liquid extraction and adsorption on polyurethane and amberlite XAD-2 for the analysis of hydrocarbons, polychlorobiphenyls, and fatty acids dissolved in sea water

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00171a010· OSTI ID:6869562

Gomez-Belinchon, J I; Grimalt, J O; Albalges, J

Liquid-liquid extraction and adsorption on polyurethane foam and on Amberlite XAD-2 resin have been compared for the analysis of aliphatic, aromatic, and chlorinated hydrocarbons and fatty acids dissolved in sea water. The application of these methods sampling in parallel the same body of water has resulted in significant differences related to the proportion of higher molecular weight components in the complex mixtures of aliphatic and aromatic hydrocarbons. These occur irrespective of the operating conditions and are attributed to selective interactions of these hydrophobic species with macromolecular organic matter such as fulvic and humic acids and to the resulting effects on adsorbent properties. In contrast, the quantitative results for most hydrocarbons and fatty acids depend on the total sampled volume, resulting in major losses when volumes larger than 300-400 L are collected with the adsorption systems (3000 bed volumes for the Amberlite XAD-2). This parameter is, however, of small importance for polychlorobiphenyls and does not influence the observed concentrations of unsubstituted polycyclic aromatic hydrocarbons.

• Research Organization: Dept. of Environmental Chemistry (CID-CSIC), Barcelona (Spain)
• OSTI ID: 6869562
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 22:6; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION
AROMATICS
CARBOXYLIC ACIDS
CHEMICAL ANALYSIS
CHLORINATED ALIPHATIC HYDROCARBONS
CHLORINATED AROMATIC HYDROCARBONS
DISPERSIONS
EXTRACTION
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATED AROMATIC HYDROCARBONS
HYDROGEN COMPOUNDS
MATERIALS
MIXTURES
MOLECULAR WEIGHT
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYMERS
POLYURETHANES
RESINS
SEAWATER
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
SYNTHETIC MATERIALS
WATER