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《Journal of Hunan University of Arts and Science(Science and Technology)》 2007-03
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The Electrocatalytic Actions of Poly (Crystal Violet) Film Modified Electrodes on Uric Acid and Dopamine

SUN Yuan-xi,HU Xia,ZHOU Gu-zhen(Chemistry Department of The Hunan University of Arts and Science,Changde Hunan 415000)  
The poly(crystal violet) film modified electrodes(PCVE) were prepared by cyclic voltammetry,electrocatalytic action of PCVE on Uric Acid(UA) and Dopamine(DA) had been studied in particular.The results have shown that the PCVE has a strong electrocatalytic action for UA and DA,and a strong power of resisting interfere of AA.Uric Acid and Dopamine can be measured in existence of 1 000 times AA.Combining PCVE with difference pulse voltammetry(DPV),the linearity range of determining DA is 4.0×10-7 mol/L ~ 2.5×10-5 mol/L,the determination limits reach up to 3.5×10-8 mol/L;the linearity range of determining UA is 5.0×10-7 mol/L ~ 5.0×10-5 mol/L,the determination limits are 5.0×10-8 mol/L.The DA and UA can be measured at the same time.The results are similar by Using the same method with UA of Urine samples.
【CateGory Index】: O646.54
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