NDLI: Determination of polycyclic aromatic hydrocarbons on SMA-EGDMA polymeric mononlith column by capillary electrochromatography

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Juan Bao, Tao Chen, Zilin
Copyright Year	2012
Abstract	In this study, a reversed-phase C18 polymeric monolith column of stearyl methacrylate-co-ethylene glycol dimethacrylate (SMA-EGDMA) was prepared and used to separate polycyclic aromatic hydrocarbons (PAHs) by capillary electrochromatography. The prepared column exhibits a good efficiency of 20,000 plates per m for naphthalene. The separation conditions for PAHs were systematically optimized. The optimized condition for the mobile phase was acetonitrile/10 mM ammonium acetate, pH 7 (80/20, v/v), and the applied voltage was set at 28 kV. Subsequently, an on-line concentration was employed to the CEC separation and by changing injection time a dramatic improvement was observed in the detection sensitivity up to 50-fold enhancement, achieving nanogram level with almost no loss of resolution. Six polycyclic aromatic hydrocarbons (naphthalene, fluorene, phenanthrene, fluoranthene, pyrene, benz[a]anthracene) showed good linearity with linear correlation coefficient R > 0.99. Reproducibility of the column was investigated. Relative standard deviations of migration time (n = 5) and peak area (n = 5) were in the range of 4.71–4.93% and 4.88–6.65%, respectively, for the six polycyclic aromatic hydrocarbons on the SMA-EGDMA polymeric monolith column. The percentage recoveries of six PAHs including naphthalene, fluorene, phenanthrene, fluoranthene, pyrene and benz[a]anthracene in East Lake water samples at three different concentrations are 93.7–102.5, 98.6–108.1, 92.6–105.9, 95.2–102.1, 91.8–105.4, and 100.9–103.7, respectively.
Starting Page	4140
Ending Page	4145
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	4
Issue Number	12
Journal	Analytical Methods
DOI	10.1039/c2ay25953b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	CEC Fluorene Phenanthrene Anthracene Monolith Polycyclic aromatic hydrocarbon Capillary electrochromatography Ammonia Pyrene Orders of magnitude (mass) Pearson product-moment correlation coefficient Stearyl alcohol Naphthalene Reproducibility Acetonitrile PH East Lake Lake Burley Griffin Reversed-phase chromatography
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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