Determination of organochlorines in sea water: an assessment

✍ Scribed by Isabel Cruz; David E. Wells; Iain L. Marr

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 564 KB
• Volume: 283
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(93)85233-a

✦ Synopsis

Multi-matrix multi-determinand methods of analysis are needed when studying the fate and transport of trace organic compounds in the aquatic environment. These methods are cost effective and provide information about the distribution of the determinands within the sample. The current method of this laboratory for the determination of persistent organochlorine contaminants was extended to the analysis of large volumes of sea water (28 1) and suspended particles. The method was validated in each stage of the analysis by a series of experiments using spiked samples, reference materials and replicates. The results showed that the precision for the determination of the organochlorines in the aqueous and particulate fractions were similar, at the sub-nanogram per litre level, whilst the initial extraction from the sample matrix contributed over 80% of the total variance in the analysis.