A new highly selective chemosensor for the detection of iron ion in aqueous medium based on click generated triazole

Publication date: October 2017
Source:Sensors and Actuators B: Chemical, Volume 249
Author(s): Kiramat Shah, Noor ul Ain, Farid Ahmed, Itrat Anis, Muhammad Raza Shah
A new click generated triazole based chemosensor 5 was designed and synthesized, that exhibits excellent selectivity for Fe⁺³ ion over a wide range of tested metal ions e.g. NH4⁺, Li⁺, Na⁺, K⁺, Cu⁺, Ag⁺, Ca⁺², Ni⁺², Co⁺², Cd⁺², Mg⁺², Cu⁺², Zn⁺², Pb⁺², Hg⁺², In⁺³, La⁺³and Y⁺³ in an aqueous medium without any remarkable interference. With Fe⁺³, the sensor 5 showed enhancement in absorption intensity at wavelength of 262nm. The sensor forms a host-guest complex in 1:1 stoichiometry with the detection limit down to 3.21μM. The interaction was also confirmed by FT-IR, ¹H NMR and FAB showing the Sensor 5–Fe⁺³ adduct at 495. Further, the sensor was successfully utilized to detect Fe⁺³ in human blood plasma and laboratory tap water as well.



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