Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10528895 | Analytica Chimica Acta | 2005 | 5 Pages |
Abstract
A novel fluorescence probe, mono[6-N(2-carboxy-phenyl)]-β-cyclodextrin (OACCD), has been developed for the determination of trace nitrite, In dilute HCl medium, the fluorescence intensity of the newly synthesized fluorescence probe OACCD was quenched in presence of trace nitrite at room temperature. Based on this, a simple, sensitive, and selective method for rapid determination of nitrite was described. Furthermore, common ions do not interfere the determination of trace amounts of nitrite. The fluorescence quenching intensity was linear over a nitrite concentration of 0.02-1.7 μmol lâ1 with a detection limit of 0.2 nmol lâ1 (S/N = 3). The method was applied to the determination of nitrite in different water samples, soil samples, and food samples with satisfactory results.
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Authors
Feng Gao, Li Zhang, Lun Wang, Shike She, Changqing Zhu,