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Citation: YANG Gong-Jun, WANG Cheng-Yin, YANG Chen, HU Xiao-Ya, LENG Zong-Zhou. Determination of α-Methyldopa by Linear Sweep Voltammetry on Carbon Paste Electrode[J]. Chinese Journal of Applied Chemistry, ;2000, 17(4): 433-435. shu

Determination of α-Methyldopa by Linear Sweep Voltammetry on Carbon Paste Electrode

1.
Department of Chemistry and Chemical Engineering, College of Science, Yangzhou University, Yangzhou 225002

Received Date: 17 November 1999
Available Online: 5 April 2000
Fund Project: 江苏省教委自然科学基金资助课题(98KJD150010) (98KJD150010)

T-Methyldopa is determined by linear sweep voltammetry on a carbon paste electrode in 0.1 mol/L H₂SO₄. The peak potential of anode is 0.677 V(vs SCE). A good linear range of T-methyldopa is in 5.0×10^-7~1.0×10^-4 mol/L. The detection limit is 2.5×10^-7 mol/L. The recovery is 95.0%~103.7% and RSD is 2.8%(n=12). The electrode reaction of T-methyldopa is an irreversible process with two electrons and two protons on the carbon paste electrode.
- T-methyldopa,
- carbon paste electrode,
- linear sweep voltammetry
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