ABSTRACT
Correction for 'Determination of ferric ions using surface-enhanced Raman scattering based on desferrioxamine-functionalized silver nanoparticles' by Fei Yan et al., Chem. Commun., 2013, 49, 7962-7964.
ABSTRACT
The effect of cationic micelles of cetyltrimethylammonium bromide (CTAB) on the interaction of gallium (III) with 4-(2-pyridylazo) resorcinol (PAR) under varying conditions has been studied spectrophotometrically. At pH 6.0, CTAB (0.05% w/v) markedly enhanced the absorption intensity of gallium (III)-PAR complex. Furthermore, the introduction of CTAB provided unique selectivity for the ligand exchange of Ga(III)-PAR by calf thymus dsDNA over calf thymus ssDNA. This phenomenon offers a novel spectrophotometric sensing strategy for direct detection of dsDNA.
Subject(s)
Coordination Complexes/chemistry , DNA/chemistry , Gallium/chemistry , Resorcinols/chemistry , Animals , Cattle , Cetrimonium , Cetrimonium Compounds/chemistry , Cetrimonium Compounds/metabolism , Coordination Complexes/metabolism , DNA/metabolism , Gallium/metabolism , Ligands , Liver/metabolism , Micelles , Molecular Structure , Resorcinols/metabolism , Spectrophotometry, Ultraviolet , Surface-Active Agents/chemistry , Surface-Active Agents/metabolismABSTRACT
A simple, robust and reproducible spectroscopic method based on surface-enhanced Raman scattering with nanomolar sensitivity has been developed for selective iron(III) determination in aqueous solutions.
