Cathodic adsorptive stripping voltammetry of abscisic acid using pencil-lead bismuth-film electrode

被引：19
|
作者：
Yardim, Yavuz [1 ]
机构：
[1] Yuzuncu Yil Univ, Fac Sci & Letters, Dept Analyt Chem, TR-65080 Van, Turkey
来源：
REVIEWS IN ANALYTICAL CHEMISTRY | 2011年 / 30卷 / 01期
关键词：
abscisic acid; bismuth-film electrode; pencil-lead graphite; plant hormones; square-wave cathodic adsorptive stripping voltammetry; VITIS-VINIFERA; TRACE-METALS; ELECTROCHEMICAL DETERMINATION; CHROMATOGRAPHY; MERCURY; ABA;
D O I：
10.1515/REVAC.2011.011
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this study, electrochemical behavior of phytohormone abscisic acid (ABA) at the bismuth-film electrode (BiFE) has been investigated using square-wave cathodic stripping voltammetry. BiFE was prepared ex situ on a supporting pencil-lead graphite electrode. ABA yielded a well-defined voltammetric response in phosphate buffer, pH 3.0 at -1.08 V (vs. Ag/AgCl) (a pre-concentration step being carried out at a fixed potential of -0.80 V for 120 s). The process could be used to determine ABA concentrations in the range 0.756-15.08 mu m, with a detection limit of 0.209 mu m (55.24 ng/ml). As an example, the practical applicability of pencil-lead BiFE was tested with the measurement of ABA in seed samples of maize plant (Zea mays L.).
引用
收藏
页码：37 / 43
页数：7
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