Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1170565 | Analytica Chimica Acta | 2007 | 8 Pages |
Abstract
Toluene was the optimal solvent to use for extraction. Due to the large variation in polarity of phthalate esters, 50% methanol as organic modifier had to be added to the samples so as to extract the most nonpolar phthalate esters; di-2-ethylhexylphthalate and di-n-octylphthalate, whereas the other four relatively polar phthalate esters were extracted from unmodified samples. No significant difference between extraction of river water, leachate water from a landfill and reagent water was noted, except for minor deviations. The extraction time was 20 min for extraction of a 1-mL sample, resulting in a good linearity for all aqueous media investigated, good enrichment factors (54-110 folds) and low LOD values (0.2-10 ng mLâ1) and relative standard deviation (%R.S.D.; 0.9-3.7%).
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Staffan Bergström, Thaer Barri, Jan Norberg, Jan Ã
ke Jönsson, Lennart Mathiasson,