Azulene–boronate esters: colorimetric indicators for fluoride in drinking water

Carlos Miguel Lopez-Alled, Adrian Sanchez Fernandez, Karen Edler, Adam Sedgwick, Steven Bull, Claire McMullin, Gabriele Kociok-Kohn, Tony James, Jannis Wenk, Simon Lewis

Research output: Contribution to journalArticlepeer-review

67 Citations (SciVal)


Low cost and in situ fluoride detection by non-experts is important for the determination of drinking water safety in developing countries. Colour reagents can provide results quickly without expensive equipment, but colorimetric fluoride indicators are often nonspecific, complex to use or do not work in water. Here we show that azulene–boronate indicators respond selectively to fluoride at concentrations relevant to the WHO limit of 1.5 mg/L.

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 665992
Original languageEnglish
Pages (from-to)12580-12583
Number of pages4
JournalChemical Communications
Issue number93
Early online date14 Nov 2017
Publication statusPublished - 4 Dec 2017


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