Title

Direct determination of benzo a pyrene in water samples by a gold nanoparticle-based solid phase extraction method and laser-excited time-resolved Shpol'skii spectrometry

Authors

Authors

H. Y. Wang;A. D. Campiglia

Comments

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Abbreviated Journal Title

Talanta

Keywords

Polycyclic aromatic hydrocarbons; Solid phase extraction; Gold; nanoparticle; Shpol skii spectroscopy; POLYCYCLIC AROMATIC-HYDROCARBONS; MULTIDIMENSIONAL FLUORESCENCE; SPECTROSCOPY; LIQUID-CHROMATOGRAPHY; DRINKING-WATER; DIBENZOPYRENE; ISOMERS; FIBEROPTIC PROBE; HPLC FRACTIONS; ICCD CAMERA; MATRICES; TEMPERATURE; Chemistry, Analytical

Abstract

The strong affinity between polycyclic aromatic hydrocarbons (PAH) and the surface of gold colloid, is investigated to device an extraction method for water samples Within the 20-100 nm particle diameter range the 20 nm gold nanoparticles showed the best extraction efficiencies for all the studied analytes The new approach is combined to laser-excited time-resolved Shpol skii spectrometry for the direct analysis of benzo[a]pyrene in drinking water samples For a 500 la sample volume the analytical figure, of merit demonstrate precise and accurate analysis at the parts-per-trillion level The extraction efficii noes are statistically equivalent to 100% with relative standard deviations lower than 2% The average recoveries were varied from 87 5% to 965% for different concentration of analytes The simplicity of I he experimental procedure the low analysis cost and the excellent analytical figures of merit demonstrate the potential of this approach for routine analysis of drinking water samples (C) 2010 Elsevier B V All rights reserved

Journal Title

Talanta

Volume

83

Issue/Number

1

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

233

Last Page

240

WOS Identifier

WOS:000284972800035

ISSN

0039-9140

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