Cancellation of contact quenching: A simple concept for selective chemosensing of basic fluoride and acetate anions
By: Mashraqui, Sabir Hussain
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Contributor(s): Ghorpade, Sushil S.
Publisher: New Delhi CSIR 2022Edition: Vol.61, Nov.Description: 1164-1168p.Subject(s): GENERAL CHEMISTRYOnline resources: Click here
In:
Indian journal of chemistry (Section B)Summary: A weakly fluorescent acid-base pair formed by reacting fluorescent acridine orange with the quencher picric acid is
reported for the detection of basic fluoride and acetate anions. Deprotonation by these anions causes disengagement of the
fluorescent acridine orange from the quencher, picric acid. This phenomenon cancels the quenching existing in the native
probe, thereby allowing for the optical signalling of fluoride and acetate anions by colour modulation as well as fluorescence
switch-on response. Anions such as Br, I, Cl, NO3, SCN, HSO4, and H2PO4 offer no detectable interference even
when in excess concentration.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
|---|---|---|---|---|---|---|
Articles Abstract Database
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School of Pharmacy Archieval Section | Not for loan | 2023-0636 |
A weakly fluorescent acid-base pair formed by reacting fluorescent acridine orange with the quencher picric acid is
reported for the detection of basic fluoride and acetate anions. Deprotonation by these anions causes disengagement of the
fluorescent acridine orange from the quencher, picric acid. This phenomenon cancels the quenching existing in the native
probe, thereby allowing for the optical signalling of fluoride and acetate anions by colour modulation as well as fluorescence
switch-on response. Anions such as Br, I, Cl, NO3, SCN, HSO4, and H2PO4 offer no detectable interference even
when in excess concentration.
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