Electrochemical Determination of L-Dopa in Mucuna pruriens Seeds, Leaves and Commercial Siddha Product Using Gold Modified Pencil Graphite Electrode

被引:26
作者
Kalachar, H. C. B. [1 ]
Basavanna, S. [2 ]
Viswanatha, R. [1 ]
Naik, Y. Arthoba [1 ]
Raj, D. Ananda [3 ]
Sudhad, P. N. [4 ]
机构
[1] Kuvempu Univ, Sch Chem Sci, Dept Chem, Shankaraghatta 577451, India
[2] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
[3] SCSVMV Univ, Dept Chem, Enathur 631561, Kanchipuram, India
[4] DKM Coll Women, Vellore 632001, Tamil Nadu, India
关键词
Ascorbic acid; Cyclic voltammetry; Differential pulse voltammetry; L-Dopa; Mucuna pruriens; VOLTAMMETRIC DETERMINATION; NANOPARTICLES; OXIDATION; (L)-DOPA; BEHAVIOR; SENSOR; HP-200; FILM; RAW;
D O I
10.1002/elan.201000558
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In the present work a gold modified pencil graphite electrode (GPGE) was used for the determination of L-dopa present in the aqueous extracts of Mucuna pruriens seeds (MPS), Mucuna pruriens leaves (MPL) and Commercial Siddha Product (CSP). The GPGE shows excellent electrocatalytic activity towards the oxidation of both L-dopa and ascorbic acid (AA), with the separation of peak potential of 98 mV. The differential pulse voltammetric (DPV) results indicated that the detection limit for L-dopa was 1.54 mu M (S/N=3). This method can be successfully applied for the determination of L-dopa in real samples.
引用
收藏
页码:1107 / 1115
页数:9
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