5-Nitro-2-hydroxybenzaldehyde (1) demonstrated to be a sensitive, and a selective molecular probe for... cyanide ion (CN-) in aqueous media.... In aqueous solution, the color becomes intense yellow upon addition of cyanide, while acetate showed... in aqueous solutions.... The cyanide ion was detected at micro molar levels in aqueous solutions with a stoichiometry of 1:1 for
colorimetric chemosensor for cyanide ion.... Using these azo-hydrazone molecular switch entities, excellent selectivity towards the detection of CN... (-) in aqueous solution over miscellaneous competitive anions was observed.... The cyanide chemosensor method described here should have potential application as a new family probes... for detecting cyanide in aqueous solution.
A simple, selective colorimetric and fluorimetric cyanide chemosensor L was designed and synthesized,... which showed both colorimetric and fluorescence turn-on responses for cyanide ions in aqueous solution... with specific selectivity and high sensitivity.... of CN À in aqueous solution; these color changes can be readily observed visually.... CN À in aqueous solution for ''in-thefield'' measurement.
The colorimetric and fluorescent cyanide recognition properties of 2-[(9-ethyl-9H-carbazol-3-yl)methylene... The optical recognition process of probe 1 exhibited high sensitivity and selectivity to cyanide ion... The sensing mechanism of probe 1 is speculated to undergo a nucleophilic addition of cyanide to dicyanovinyl... The colorimetric and fluorescent dual-modal response to cyanide makes probe 1 has a potential utility... in cyanide detection.
The probe exhibited very high selectivity towards cyanide on both fluorescence and UV-vis spectra, which... allowed it to quantitatively detect and imaging cyanide ions in organic-aqueous solution by either fluorescence... enhancement or colorimetric changes.... addition reaction induced by cyanide ions, which blocked the intramolecular charge transfer (ICT) of... Application in 5 kinds of natural water source and accurate detection of cyanide in tap water solvent
Probes based on anthra[1,2-d]imidazole-6,11-dione were designed and synthesized for selective ion sensing... Each probe acted as strong colorimetric sensors for fluoride and cyanide ions and exhibited intramolecular... One of the probes (2) showed selective colorimetric sensing for both cyanide and fluoride ions.... In organic medium, 2 showed selective color change with fluoride and cyanide, whereas in aqueous organic... medium it showed a ratiometric response selectively for cyanide ion.
Based on the internal charge transfer (ICT) mechanism, a novel colorimetric and ratiometric fluorescent... probe was developed for highly selective and sensitive detection of cyanide ion in aqueous media.
A peptide-based ensemble for the detection of cyanide ions in 100% aqueous solutions was designed on... The ensemble (NBD-SSH-Cu(2+)) sensitively and selectively detected a low concentration of cyanide ions... in 100% aqueous solutions by a colorimetric change as well as a fluorescent change.... The detection limits for cyanide ions were lower than the maximum allowable level of cyanide ions in... submicromolar concentrations of cyanide ions in 100% aqueous solutions.
A highly sensitive, selective colorimetric and fluorometric molecular probe based on a subphthalocyanine... dye has been developed for cyanide‐anion determination in aqueous solution.... covalently anchored to transparent mesoporous nanocrystalline high‐surface‐area metal oxide films to detect... low concentrations of cyanide anion in pure water with no interference from other anionic or cationic
The metal-induced intramolecular cyclization reaction of an azo dye was exploited for the colorimetric... detection of mercury ions in water.... The molecular probe 3 responds selectively to nM-level Hg(II) ions in neutral aqueous solutions.