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Potential of micelle-mediate procedures in the sample preparation steps for the determination of polynuclear aromatic hydrocarbons in waters

✍ Scribed by A. López García; E. Blanco González; J.I. García Alonso; A. Sanz-Medel

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
670 KB
Volume
264
Category
Article
ISSN
0003-2670

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✦ Synopsis

The analytical potential of using mlcelle-mediated procedures for the sampling and preconcentratlon of polynuclear aromatic hydrocarbons (PAHs) m water was mvestlgated The effect of micellar systems on the stabdlty of several PAH-containing water samples, stored m different container materials, were studied It was found that the presence of mlcelles m the sample was as effective as acetomtnle at a concentration of 40% (v/v) m preventing loss of PAHs due to adsorption on the surface of PTFE or borosdlcate glass contamers In addltlon, the usefulness of such mlcellar systems for extraction and preconcentratlon was demonstrated by the observed increase m the recovery of PAHs from waters containing mlcelles on a typical C,s cartridge The possible advantages of mlcelles over organic solvents for sampling and preconcentratlon of PAHs m water-borne envnomnental samples 1s also discussed

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