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- Title
Indirectly suspended droplet microextraction of water-miscible organic solvents by salting-out effect for the determination of polycyclic aromatic hydrocarbons.
- Authors
Daneshfar, Ali; Khezeli, Tahere
- Abstract
A simple and low-cost method that indirectly suspended droplet microextraction of water-miscible organic solvents (ISDME) by salting-out effect before high-performance liquid chromatography and ultraviolet (HPLC-UV) detection was used for the determination of polycyclic aromatic hydrocarbons (PAHs) in different samples. The ISDME is a combination of salting-out extraction of water-miscible organic solvent and directly suspended droplet microextraction (DSDME). Ninety-five microliters water-miscible organic solvent (1-propanol) was added to a 500-µL sample. A homogeneous solution was formed immediately. To produce a steady vortex at the top of the solution, the sample was agitated at 700 rpm using a magnetic stirrer. By the addition of ammonium sulfate (saturated solution) to the homogeneous solution, 1-propanol was separated and collected at the bottom of the steady vortex. Finally, 20 µL 1-propanol was injected into HPLC-UV. The effects of important parameters such as water-miscible organic solvent (type and volume), type of salt, and extraction time were evaluated. Under optimum conditions, the method has a good linear calibration range (0.1 µg/L-300 µg/L), coefficients of determination ( R 2 > 0.998), low limits of detection (between 0.02 µg/L and 0.27 µg/L), and acceptable recovery (>85.0%). Environ Toxicol Chem 2014;33:2694-2701. © 2014 SETAC
- Subjects
POLYCYCLIC aromatic hydrocarbons; HIGH performance liquid chromatography; ULTRAVIOLET water treatment; ORGANIC solvents; SOLVENT extraction
- Publication
Environmental Toxicology & Chemistry, 2014, Vol 33, Issue 12, p2694
- ISSN
0730-7268
- Publication type
Article
- DOI
10.1002/etc.2753