Development and Validation of a Reversed-Phase Liquid Chromatography Method for the Simultaneous Determination of Indole-3-Acetic Acid, Indole-3-Pyruvic Acid, and Abscisic Acid in Barley (Hordeum vulgare L.)

被引:37
|
作者
Nakurte, Ilva [1 ]
Keisa, Anete [1 ]
Rostoks, Nils [1 ]
机构
[1] Univ Latvia, Fac Biol, LV-1586 Riga, Latvia
关键词
PLANT DEVELOPMENT; AUXIN; CYTOKININS; SEPARATION; GROWTH;
D O I
10.1155/2012/103575
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A simple, sensitive, precise, and specific reverse HPLC method was developed and validated for the determination of plant hormones in barley (Hordeum vulgare L.). The method includes extraction in aqueous organic solvent followed by solid-phase extraction, sample evaporation, and reversed-phase HPLC analysis in a general purpose UV-visible (abscisic acid (ABA)) and fluorescence detection (indole-3-acetic acid (IAA) and indole-3-pyruvic acid (IPA)), high-performance liquid chromatography system. The separation was carried out on Zorbax Eclipse XDB C8 column (150 x 4.6 mm I. D) with a mobile phase composed of methanol and 1% acetic acid (60 : 40 v/v) in isocratic mode at a flow rate of 1 ml min(-1). The detection was monitored at 270 nm (ABA) and at 282 nm (Ex) and 360 nm (Em) (IAA, IPA). The developed method was validated in terms of accuracy, precision, linearity, limit of detection, limit of quantification, and robustness. The determined validation parameters are in the commonly acceptable ranges for that kind of analysis.
引用
收藏
页数:6
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