Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1218, Issue 23, Pages 3601-3607Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2011.04.018
Keywords
Solid-phase microextraction; Polydopamine; Hydroxyapatite; Polycyclic aromatic hydrocarbons; Stainless steel wire
Funding
- National Natural Science Foundation of China [20975105, 20775084, 20805052]
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In this paper, we introduced a novel and versatile route to prepare solid-phase microextraction coatings on the chemically inert stainless steel wire. Polydopamine films can be created on metallic substrates by an oxidant-induced polymerization and subsequently support various secondary reactions to prepare functional surfaces. In the present work, polydopamine-bioactivated stainless steel wire was successfully modified by nanostructured hydroxyapatite. Extraction performance of the fiber was assessed on several polycyclic aromatic hydrocarbons in water solutions. Extraction mechanism was suggested based on the correlation of partition coefficients and Log Ps. Both aqueous and solid real life samples were used to test the reliability of the solid-phase microextraction-gas chromatography method; some analytes were detected and quantified. (C) 2011 Elsevier B.V. All rights reserved.
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