Synthesis and recognition properties of a class of simple colorimetric anion chemosensors containing OH and CONH groups

Chromogenic and fluorogenic chemosensors and reagents for anions. A comprehensive review of the years 2010–2011

“…22). 43 Compound 64 was able to selectively recognise F -and AcO -in DMSO through the formation of Rhodamine-based colourimetric probe 66 was reported to be selective to ClO -with a remarkable limit of detection as low as 8.1 x 10 -7 mol L -1 in aqueous solution. 44 …”

A Naked-Eye Colorimetric Receptor for Anions Based on Nitro Group Featuring with Benzimidazole Unit

“…Especially, the colorimetric and ratiometric chemosensors appear to be particularly attractive due to their simplicity, high sensitivity and high selectivity. Colorimetric sensing possesses huge advantages in practical application as it can rapidly provide qualitative information about the analyte without any expensive instrument [3,4].…”

A Novel 4-(1H-Benzimidazol-2-yl)-2-methoxy-phenol Derived Fluorescent Sensor for Determination of CN– Ion

“…Fluorescence sensation is an exceptional technique among the different detection methods used for recognition of different anion, such as cyanide anion, because of its high sensitivity [7]. Consequently, cyanide selective detection and quantification are very important, which has been the object of increasing investigation [8].…”