Voltammetric determination of cysteine at a carbon paste electrode modified with Cu(II)-salen complex
Document Type : Research Paper
Abstract
The electrochemical behavior of a modified carbon paste electrode (MCPE) with N,N′ ethylenbis(salicylideneiminato)copper(II) complex ([Cu(II)-Salen]) was investigated as a new sensor for cystein. The Britton-Robinson buffer with pH 5, 10% modifier in electrode, potential scanning rate of 20 mVs-1 and puls height of 50 mV were used as the optimum condition for the determination of cysteine using carbon paste electrode modified with Cu(II)-Salen complex. Under these optimum conditions, the resulting electrode demonstrated linear response with cysteine concentration in the range of 1-10 and 10-80 μM. The effects of potential interfering species were studied and it was found that only thiocyanate ion interfered in cysteine determination and the proposed procedure was free from most other interferences.
(2014). Voltammetric determination of cysteine at a carbon paste electrode modified with Cu(II)-salen complex. Journal of Physical Chemistry & Eleectrochemistry, 2(1), 78-81.
MLA
. "Voltammetric determination of cysteine at a carbon paste electrode modified with Cu(II)-salen complex". Journal of Physical Chemistry & Eleectrochemistry, 2, 1, 2014, 78-81.
HARVARD
(2014). 'Voltammetric determination of cysteine at a carbon paste electrode modified with Cu(II)-salen complex', Journal of Physical Chemistry & Eleectrochemistry, 2(1), pp. 78-81.
VANCOUVER
Voltammetric determination of cysteine at a carbon paste electrode modified with Cu(II)-salen complex. Journal of Physical Chemistry & Eleectrochemistry, 2014; 2(1): 78-81.
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