Electrochemical behavior of folic acid on mercury meniscus modified silver solid amalgam electrode

被引：79
|
作者：
Bandzuchova, L. [2 ]
Selesovska, R. [2 ]
Navratil, T. [1 ]
Chylkova, J. [2 ]
机构：
[1] AS CR, J Heyrovsky Inst Phys Chem, VVI, Prague 18223 8, Czech Republic
[2] Univ Pardubice, Fac Chem Technol, Inst Environm & Chem Engn, Pardubice 53210, Czech Republic
来源：
ELECTROCHIMICA ACTA | 2011年 / 56卷 / 05期
关键词：
Folic acid; Vitamins; Voltammetry; Mercury meniscus modified silver solid; amalgam electrode; Hanging mercury drop electrode; GRAPHITE COMPOSITE ELECTRODE; WATER-SOLUBLE VITAMINS; VOLTAMMETRIC DETERMINATION; PHARMACEUTICAL PREPARATIONS; LIQUID-CHROMATOGRAPHY; CAPILLARY-ELECTROPHORESIS; ELIMINATION VOLTAMMETRY; STRIPPING VOLTAMMETRY; DENTAL AMALGAM; PASTE;
D O I：
10.1016/j.electacta.2010.10.090
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Voltammetric behavior of folic acid and folates has been investigated using direct current voltammetry, differential pulse voltammetry and adsorptive stripping differential pulse voltammetry at a mercury meniscus modified silver solid amalgam electrode (m-AgSAE). The optimum conditions have been found for their determination in a 1:9 mixture of methanol and aqueous acetate buffer, with the limit of detection about 0.5 nmol L-1. RSD at this concentration level amounted to less than 4%. Practical applicability of the newly developed method was verified by analysis of three vitamin preparations and of two multivitamin juices. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2411 / 2419
页数：9
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