US EPA

1748691 

Journal Article 

Adsorbable organic halogen compounds (AOX) determination in sea sediments 

Kankaanpaa, H; Masuku, CP 

1992 

Yes 

Chemosphere
ISSN: 0045-6535
EISSN: 1879-1298 

BIOSIS/92/23566 

24 

9 

1331-1345 

English 

WOS:A1992HX05700015 

https://linkinghub.elsevier.com/retrieve/pii/004565359290057X
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BIOSIS COPYRIGHT: BIOL ABS. A procedure for preparing sea sediment samples for AOX analysis is described. Due to the high chloride content in sea sediment, pretreatment with silver nitrate to precipitate halides is suggested, in addition to using the conventional nitrate wash according to the standard DIN 38409 procedure. The sediment samples collected in the vicinity of a bleach-plant, from the Bothnian Bay, which is in the northernmost part of the Baltic Sea gave AOX values of 400-600 mug/g. A trial of using gel column chromatography in separating molecules with a molecular weight of the order of 100-500 daltons from chloride is reported, and proved unsuccessful with either o-chlorobenzoic acid or DDT. Using o-chlorobenzoic acid as a model compound, the possible loss of organic material with the silver nitrides was tested. No loss was observed at least in the case of high AOX values with this compound. Mean recoveries of 88 to 98% in the AOX value were obtained for o-chlorobenzoic acid when usin 

Ecology; Biochemical Studies-General; Biophysics-General Biophysical Techniques; Toxicology-Environmental and Industrial Toxicology; Public Health: Environmental Health-Air; Soil Science-General