Evaluation of a Cyclodextrin-silica Hybrid Microporous Composite for the Solid-phase Extraction of Polycyclic Aromatic Hydrocarbons.
Solid-phase extraction (SPE) coupled with high-performance liquid chromatography (HPLC) with fluorescence detection were employed to determine trace polycyclic aromatic hydrocarbons in water samples. In this way, the use of cartridges containing cyclodextrin-silica hybrid microporous solid phases was proposed. The experimental results indicated that the method provided relative standard deviations of below 15% and detection limits recorded were 12, 1.2, 12, 38, 4, 6 and 4 ng L(-1) for benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[g,h,i]perylene, indeno[1,2,3]pyrene, benzo[a]pyrene, dibenzo[a,h]anthracene and benzo[a]anthracene, respectively. Moreover, the method was successfully applied for the determination of these organic compounds in water samples, where they were found to be in the 7 to 580 ng L(-1) range. It can be concluded that the major advantages of cyclodextrin-silica hybrid microporous solid phases are that they reduce the consumption and the toxicity of the solvent and the time consumption of the sample treatment step.
Departament de Química Analítica, Facultat de Química, Universitat de València.
Salomé
S
Soler-Seguí
Carolinakn-Aut-Sei
CA
Belenguer-Sapiña
Pedro
P
Amorós
Adela
A
Mauri-Aucejo