Synthesis and characterisation of a novel bi-nuclear copper2+ complex and its application as electrode-modifying agent for simultaneous voltammetric determination of dopamine and ascorbic acid
-
Diganta Das
,
Babita Sarma
Abstract
A new binuclear complex of copper2+, [LCu2+(CH3COO)2Cu2+L](CH3COO)2 where L is N,N-bis(phthalimide)ethylenediamine, was synthesised and characterised. The complex ion [LCu2+ (CH3COO)2Cu2+L]2+ was encapsulated into ZSM-5 zeolite and used to modify the surface of the glassy carbon electrode. This modified electrode, in a phosphate buffer solution at pH 7.0, exhibited an oxidation potential for dopamine (DA) and ascorbic acid (AA) at electrode potentials of 0.230 V and −0.090 V vs. Ag/AgCl respectively, a separation of 0.320 V. The electro-oxidation of DA or AA on the modified electrode is independent of each other. No interference was observed from Na+, K+, Cl−, SO42−, Mg2+, Ca2+, Zn2+, Fe2+, and glucose. The detection limits obtained were 2.91 × 10−7 M for DA and 3.5 × 10−7 M for AA.
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© 2013 Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
- Synthesis and characterisation of a novel bi-nuclear copper2+ complex and its application as electrode-modifying agent for simultaneous voltammetric determination of dopamine and ascorbic acid
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- Properties of poly(lactic acid-co-glycolic acid) film modified by blending with polyurethane
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Articles in the same Issue
- Synthesis and characterisation of a novel bi-nuclear copper2+ complex and its application as electrode-modifying agent for simultaneous voltammetric determination of dopamine and ascorbic acid
- Synthesis of ethyl-6-aminohexanoate from caprolactam and ethanol in near-critical water
- Vanadium dodecylamino phosphate: A novel efficient catalyst for synthesis of polyhydroquinolines
- Modelling and experimental validation of enantioseparation of racemic phenylalanine via a hollow fibre-supported liquid membrane
- Influence of operating conditions on performance of ceramic membrane used for water treatment
- Mercury associated with size-fractionated urban particulate matter: three years of sampling in Prague, Czech Republic
- Chemical composition and antioxidant activity of sulphated polysaccharides extracted from Fucus vesiculosus using different hydrothermal processes
- A new organically templated magnesium sulfate: structure, spectroscopic analysis, and thermal behaviour
- Synthesis, characterization and photoluminescence properties of Ce3+-doped ZnO-nanophosphors
- Synthesis and photophysical properties of new Ln(III) (Ln = Eu(III), Gd(III), or Tb(III)) complexes of 1-amidino-O-methylurea
- Polycarbonate-based polyurethane elastomers: temperature-dependence of tensile properties
- Synthesis of a disulfide functionalized diacetylenic derivative of carbazole as building-block of polymerizable self-assembled monolayers
- Properties of poly(lactic acid-co-glycolic acid) film modified by blending with polyurethane
- Determination of 10B in lymphoma human cells after boron carrier treatment: comparison of 10BPA and immuno-nanoparticles
- Molecular modelling and spectral investigation of some triphenyltetrazolium chloride derivatives
- X-ray molecular structure and theoretical study of 1,4-bis[2-cyano-2-(o-pyridyl)ethenyl]benzene
- 1,3-Dipolar cycloaddition between substituted phenyl azide and 2,3-dihydrofuran
