Jump to main content
Jump to site search


Fluorescence Based Detection of Poly Chlorinated Biphenyls (PCBs) in Water Using Hydrophobic Interaction

Abstract

Despite increasing controls in their production and disposal, persistent organic pollutants in water, even at concentrations below parts per million, represent an ongoing environmental health risk. Despite this concern, the detection of these compounds in water sources rely upon expensive, time consuming approaches that do not permit frequent monitoring and evaluation. In this work, a new fluorescence-based technique is presented for the detection of Polychlorinated biphenyls (PCBs) in water. Benzopyrene (BaP) fluorescence was shown to increase with trace concentrations of aromatic organic pollutants. BaP forms a hydrophobic complex with PCB, which has allowed for the successful detection of pollutants including PCB-126, PCB-153 and PCB-118. To determine the selectivity and robustness of this response, the impact of pH, ionic strength and humic acid to mimic surface water conditions is explored. While suppression of signal was seen, these factors impact on PCBs detection was minor, suggestion a potential sensing strategy can be developed through this interaction. It is seen that the number and location of chlorine atoms are important along with the geometric orientation of molecule’s structure.

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 May 2018, accepted on 16 Oct 2018 and first published on 01 Nov 2018


Article type: Paper
DOI: 10.1039/C8AN00867A
Citation: Analyst, 2018, Accepted Manuscript
  •   Request permissions

    Fluorescence Based Detection of Poly Chlorinated Biphenyls (PCBs) in Water Using Hydrophobic Interaction

    I. Ahmad, J. Weng, A. J. Stromberg, J. Z. Hilt and T. Dziubla, Analyst, 2018, Accepted Manuscript , DOI: 10.1039/C8AN00867A

Search articles by author

Spotlight

Advertisements