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Applicability of Fibrous Solid Phase Extraction to Alkyl Phthalates Analysis  

Jung, Yong-Jun (Department of Environmental Engineering, Catholic University of Pusan)
Publication Information
Journal of Korean Society on Water Environment / v.24, no.6, 2008 , pp. 801-805 More about this Journal
Abstract
A fibrous material (p-phenylene-2,5-benzobisoxazole, PBO) was used as an adsorbent for solid phase extraction in order to simplify the extraction procedure. The extraction performance for di-(2-ethylhexyl) phthalate (DEHP) was examined with two types of PBO fibers (HM (High modulus) and AS (Regular type) types) by batch type sorption/desorption experiments. When 100 mg of the HM fibers were applied to 20 mL of the aqueous DEHP solution (less than $50{\mu}g/L$), more than 95% of DEHP was adsorbed on the fibers, however, the AS type fibers adsorbed alkyl phthalate up to 80%. In the case of $50{\mu}g/L$ of the initial concentration of DEHP, the adsorbed DEHP was extracted effectively with methanol and the maximum overall recovery ratio was 92.3%. The results indicated that the PBO fibers could be used as an adsorbent for alkyl phthalate analysis, and that the extraction procedure was not affected by suspended solids in a water sample.
Keywords
Adsorbent; Alkyl phthalate; p-phenylene-2,5-benzobisoxazole (PBO) fiber; Solid phase extraction;
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