%0 Journal Article
%T CarbonPasteElectrodePreparedfromChemicallyModifiedMultiwallCarbonNanotubesfortheVoltammetricDeterminationofIsoprenalineinPharmaceuticalandUrineSamples
%A Ali A. ENSAFI
%A Hajar BAHRAMI
%A Hassan KARIMI-MALEH
%A Shadpour MALLAKPOUR
%J ´ß»¯Ñ§±¨
%P 1919-1926
%D 2012
%R 10.1016/S1872-2067(11)60465-8
%X £¿AcarbonpasteelectrodewithaddedmultiwallcarbonnanotubeschemicallymodifiedwithN-(3,4-dihydroxyphenethyl)-3,5-dinitrobenzamidewasusedastheelectrochemicalsensorforthedeterminationoftraceamountsofisoprenaline.Themodifiedelectrodeshowedgoodelectrocatalyticactivityfortheanodicoxidationofisoprenaline,whichwasduetoasubstantialdecreaseintheanodicoverpotential.Undertheoptimumconditions,measurementsusingsquarewavevoltammetryhadalinearrangeintherangeof0.3to125.0¦Ìmol/Lofisoprenalineandadetectionlimitof0.1¦Ìmol/L.Thediffusioncoefficientandkineticparametersweredeterminedusingelectrochemicalmethods.Therelativestandarddeviationforsevensuccessiveassaysof1.0and20.0¦Ìmol/Lisoprenalinewere1.9%and2.4%,respectively.Thiselectrochemicalsensorwassuccessfullyappliedforthedeterminationofisoprenalineinhumanurineandinjectionsolutionsamples.
%K isoprenaline
%K carbonnanotube
%K electrode
%K electrocatalyticeffect
%K voltammetry
%U http://www.chxb.cn/CN/abstract/abstract20841.shtml