Xiao P, Weibel N, Dudal Y, Corvini PFX, Shahgaldian P. A cyclodextrin-based polymer for sensing diclofenac in water.
JOURNAL OF HAZARDOUS MATERIALS 2015;
299:412-416. [PMID:
26164704 DOI:
10.1016/j.jhazmat.2015.06.047]
[Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 05/25/2015] [Accepted: 06/19/2015] [Indexed: 06/04/2023]
Abstract
An assay for the determination of diclofenac concentration, in the micromolar range in water, was developed. It is based on the use of a recently developed cyclodextrin-based polymer that possesses an inherent affinity for the target pharmaceutical. This competitive assay is exploiting the possibility to displace a fluorescent dye, adsorbed in the cyclodextrin-based polymer, by the target drug. This displacement is followed by measuring the increase in fluorescence polarization of the dye released in solution. The assay was successfully tested on a real wastewater sample with a limit of detection of 1 μM.
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