Lipid removal using semipermeable membranes (SPMs) in PCDD and PCDF analysis of fat-rich environmental samples

• Published in: Chemosphere (Oxford) Vol. 38; no. 5; pp. 933 - 943
• Main Authors: Bergqvist, P.-A., Strandberg, B., Rappe, C.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.02.1999; Elsevier
• Subjects: Analysis methods; Animal, plant and microbial ecology; Applied ecology; Applied sciences; Biological and medical sciences; Clupea harengus; dialysis; Ecotoxicology, biological effects of pollution; environmental samples; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; lipid removal; Marine; PCDDs; PCDFs; Pollution; Semipermeable membrane; Soil and sediments pollution; SPM; Techniques; dialysis; SPM; Semipermeable membrane; environmental samples; PCDDs; PCDFs; lipid removal; Adipose tissue; Lipids; Sediments; Biological compound; Pollutant; Vertebrata; Sample preparation; Animal; Pisces; Environment; Aves; Quantitative analysis
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/S0045-6535(98)00356-7

We have studied the kinetics of lipid removal using the semipermeable membrane technique (SPM) during preparation of fat rich environmental samples for analysis of lipophilic substances such as dioxins. This is a useful alternative to the conventional methodologies (both destructive and non-destructive). For herring fat, the dialysis was found to be almost complete after two solvent replacements. Our study also showed recoveries exceeding 80% for a series of PCDFs and PCDFs in various biotic samples.