Abstract
A new procedure is presented for the analysis of polycyclic aromatic hydrocarbons by solid–liquid extraction (SLE) and laser-excited time-resolved Shpol'skii spectrometry (LETRSS). Microliters of Shpol'skii solvent are spiked on the surface of the extraction membrane and LETRSS is directly performed on the organic layer above the surface of the solid substrate. Fluorescence measurements are easily performed with a fiber-optic cell specifically designed for cryogenic measurements at 77 and 4.2 K. In comparison to the SLE–LETRSS procedure previously reported (Environ. Sci. Technol. 35 (2001) 2566), the spiking procedure eliminates the eluting step, reduces solvent consumption and improves limits of detection for at least one order of magnitude.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
