Abstract
In this work fluorescence quenching of phenanthrene by heavy metal ions (Fe3+, Cu2+, Cr3+ Pb2+, Ni2+) was studied in aqueous solution of sodium dodecyl sulphate (SDS). Fluorescence quenching was higher in lower SDS concentration and decreased with the increase in SDS concentration. Phenanthrene quenching by heavy metal ions were explained by Stern-Volmer equations and the Stern-Volmer constants were observed in the order Fe3+ > Cu2+ > Cr3+ > Pb2+ > Ni2+ respectively. Stern-Volmer constants reflect the sensitivity of the method for the studied metal ions. Limit of detection which was calculated as three time standard deviation of the blank for n = 10 (3×SD) ranged from 1.504×10-6-1.113×10-5 molL-1and limit of quantification which was calculated as ten times standard deviation of the blank for n = 10 (10×SD) ranged from 5.013×10-6-3.371×10-5molL-1. Phenanthrene fluorescence quenching by the studied metal ions shows good reproducibility and the used of anionic surfactant increases the fluorescence quenching of phenanthrene by heavy metal ions. This method could be very effective for the determination of metal ions.
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.
