Naked-eye detection of fluoride ion in water: a remarkably selective easy-to-prepare test paper

Abstract

A test paper for high-selectivity detecting fluoride ion in natural aqueous environments without any spectroscopic instrumentation was achieved by using Ru-bipy based quinonehydrazone as a chromo- and fluorogenic hybrid chemosensor.

Incorporation of the fluoride induced SiO bond cleavage and functionalized gold nanoparticle aggregation into one colorimetric probe for highly specific and sensitive detection of fluoride

“…In general, these sensors were assigned to two categories. One class of sensors were devised to incorporate receptors capable of forming hydrogen bonding with the anionic guest F − [13][14][15], in which the hydrogenbonded receptors rely on either adjacent chromophore units or deprotonation followed by electron delocalization to display a colorimetric response. Considering the bond energy, hydrogen bond (HB) which belongs to weak intermolecular force scope is susceptible to be interfered by co-exist anions.…”

A near-infrared phosphorescent probe for F− based on a cationic iridium(III) complex with triarylboron moieties

“…Thus, it is very meaningful to exploit new strategies to design fluorescent probes for sensing F  with high selectivity. And some excellent F  receptors and probes have been reported [18][19][20][21]. Due to the Lewis acidity of boron center, triarylboranes with bulky aryl substitutes can react with small nucleophilic anions including F  to afford fluoroborate anions.…”

Anion Recognition Using Novel and Colorimetric Tweezer Receptors: 1,3‐Phenylenedi(carbonylhydrazone) in Aqueous‐organic Binary Solvents

“…[9][10][11] There is still a huge scope to develop receptors capable of binding anion in competitive media to more accurately mimic those interactions found in nature. 12 A common receptor type is that such as macrocycles, 13 thiourea, 14 imidazolium, 15 guanidinium, 16 phenylhydrazone, 17,18 etc. But to the best of our knowledge, studies regarding the anion recognition tweezer receptors based on beazoylhydrazone derivatives are scarce.…”