HPLC method validation and application for organic acid analysis in wine after solid-phase extraction

Tasev, Krste and Stefova, Marina and Ivanova, Violeta (2016) HPLC method validation and application for organic acid analysis in wine after solid-phase extraction. Macedonian Journal of Chemistry and Chemical Engineering, 35 (2). ISSN 1857 - 5552

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Abstract

A solid-phase extraction method followed by reverse phase high-performance liquid chromatography (RP-HPLC) was optimized and validated for the quantitative determination of tartaric, malic, shikimic, lactic, citric and succinic acids in wine. Solid-phase extraction was carried out with C18 cartridges and extraction recoveries for all acids ranging from 98.3 to 103% were obtained. HPLC separation was performed with isocratic elution on a LiChrosorb RP-18 column (250 × 4.6 mm I.D., 5 µm) protected with the appropriate guard column. The mobile phase was a 5 mM solution of H3PO4 with pH 2.1 at a flow rate of 1 ml/min. Detection of the organic acids was performed at 210 nm. The developed method was validated by checking its linearity, limit of detection (LOD), limit of quantification (LOQ), precision and recovery. The method was applied to the analysis of organic acids in Macedonian red and white wines.

Item Type: Article
Subjects: Natural sciences > Chemical sciences
Divisions: Faculty of Agriculture
Depositing User: Violeta Ivanova Petropulos
Date Deposited: 24 Jan 2017 11:14
Last Modified: 24 Jan 2017 11:14
URI: https://eprints.ugd.edu.mk/id/eprint/16915

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