Polymer film sensor for sampling and remote analysis of polycyclic aromatic hydrocarbons in clear and turbid aqueous environments

TY - JOUR

T1 - Polymer film sensor for sampling and remote analysis of polycyclic aromatic hydrocarbons in clear and turbid aqueous environments

AU - Sluszny, Chanan

AU - Gridin, Vladimir V.

AU - Bulatov, Valery

AU - Schechter, Israel

N1 - Funding Information: This study was supported by the James Franck Program in Laser Matter Interaction, by the Grand Water Research Institute and by the Israel Ministry of Labor. VVG and VB are grateful for financial support by the Israel Ministry of Adsorption, provided to new immigrant scientists.

PY - 2004/9/27

Y1 - 2004/9/27

N2 - A sensor for remote analysis of polycyclic aromatic hydrocarbons (PAHs) has been developed. It is based on direct solid phase extraction of the pollutants on a polymeric film, followed by monitoring the laser induced fluorescence, emitted from the film, via optical fibers. The proposed sensor has been applied to direct PAH analysis in clear and turbid aqueous environments. Linear calibration plots have been obtained for PAH solutions containing both humic substances and clay suspensions. Detection limits in the range of 10 ppt have been achieved. Results are obtained almost instantaneously (in drinking water) or within minutes, in more complicated matrices. This set-up has provided considerable improvement of the detection limits, when compared to the traditional fiber-optic fluorescence probe. In case of pyrene, a 100-fold and a 250-fold improvement in the detection limits have been obtained for the clay and humic substances-containing water, respectively. The spectral response of the polymeric film has been studied under various conditions and the feasibility of the method for analysis of PAH mixtures has been addressed.

AB - A sensor for remote analysis of polycyclic aromatic hydrocarbons (PAHs) has been developed. It is based on direct solid phase extraction of the pollutants on a polymeric film, followed by monitoring the laser induced fluorescence, emitted from the film, via optical fibers. The proposed sensor has been applied to direct PAH analysis in clear and turbid aqueous environments. Linear calibration plots have been obtained for PAH solutions containing both humic substances and clay suspensions. Detection limits in the range of 10 ppt have been achieved. Results are obtained almost instantaneously (in drinking water) or within minutes, in more complicated matrices. This set-up has provided considerable improvement of the detection limits, when compared to the traditional fiber-optic fluorescence probe. In case of pyrene, a 100-fold and a 250-fold improvement in the detection limits have been obtained for the clay and humic substances-containing water, respectively. The spectral response of the polymeric film has been studied under various conditions and the feasibility of the method for analysis of PAH mixtures has been addressed.

KW - Environment

KW - PAH

KW - Polymer

KW - Pyrene

KW - Sensor

UR - http://www.scopus.com/inward/record.url?scp=4444233922&partnerID=8YFLogxK

U2 - 10.1016/j.aca.2004.06.012

DO - 10.1016/j.aca.2004.06.012

M3 - 文章

AN - SCOPUS:4444233922

SN - 0003-2670

VL - 522

SP - 145

EP - 152

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

IS - 2

ER -