عنوان مجله
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POLYCYCLIC AROMATIC COMPOUNDS
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چکیده
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In this study, a rapid and inexpensive method called coated vial solidphase
microextraction for determining the polycyclic aromatic hydrocarbons
in aqueous samples was presented. In this method for the first time
consists of a commercial 10mL serum vial (penicillin flask) coated with
mercaptopropyl moiety a thin layer of adsorbent immobilized on the inner
surface of the vial. Extraction was started by adding 5mL of the sample
into the vial and shaking by hand. Then the washing and elution process
was performed. To analysis the target compounds, high-performance liquid
chromatography were used. The peaks are evaluated either by their area
or height. In this study, the condition of polycyclic aromatic hydrocarbons
extractions was optimized by varying the handshaking time, salt concentration,
elution time, sample pH, type of elution solvent, and volume of elution
solvent. The repeatabilities for one device, expressed as relative
standard deviation, were 3.9%–5.8%. The limit of detections for the studied
compounds were 0.01–0.03 mg L1. Linear dynamic range of 0.0001–10mg
L1 with good determination coefficients (R2) were in the range of
0.995–0.998 for polycyclic aromatic hydrocarbons. Extraction recoveries for
different real samples were 97.3%–104.1%. Finally, the proposed method
was applied for the analysis of polycyclic aromatic hydrocarbons in aqueous
samples.
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