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• W2068404121 abstract "A sensitive method for the determination of polycyclic aromatic hydrocarbons (PAHs) by solid phase microextraction coupled with cyclodextrin (CD)-modified capillary electrophoresis (CE) using UV detection has been developed. A glass fiber was prepared and used for absorbing 16 EPA priority PAHs from diluted samples until equilibrium was reached. After the glass fiber was connected to a separation capillary via an adapter, the absorbed analytes were directly released into the CE buffer stream, and electrophoretic separation was effected using a 50 mM borate, pH 9.2, buffer containing 35 mM sulfobutyloxy-β-CD, 10 mM methyl-β-CD, and 4 mM α-CD. Separation was effected since neutral PAHs differentially partitioned between the neutral and charged CD phases. Under 30 kV applied potential, separation was achieved in less than 15 min with high resolution and number of theoretical plates. Pyrene as low as 8 ppb was detected, while the highest limit of detection was 75 ppb for acenaphthene. Very satisfactory reproducibility with respect to migration time and peak area was obtained for repetitions using the same separation capillary and adapter, where only the extraction fiber was discarded after each analysis." @default.
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• W2068404121 date "1997-05-01" @default.
• W2068404121 modified "2023-10-10" @default.
• W2068404121 title "Separation and Determination of Polycyclic Aromatic Hydrocarbons by Solid Phase Microextraction/Cyclodextrin-Modified Capillary Electrophoresis" @default.
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• W2068404121 doi "https://doi.org/10.1021/ac960986o" @default.
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