Extraction and Chromatographic Determination of Shikimic Acid in Chinese Conifer Needles with 1-Benzyl-3-methylimidazolium Bromide Ionic Liquid Aqueous Solutions | Zendy

Fengli Chen | Zendy; Kexin Hou | Zendy; Shuangyang Li | Zendy; Yuangang Zu | Zendy; Lei Yang | Zendy

Open Access

Extraction and Chromatographic Determination of Shikimic Acid in Chinese Conifer Needles with 1-Benzyl-3-methylimidazolium Bromide Ionic Liquid Aqueous Solutions

Author(s) -

Fengli Chen,

Kexin Hou,

Shuangyang Li,

Yuangang Zu,

Lei Yang

Publication year - 2014

Publication title -

journal of analytical methods in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.407

H-Index - 25

eISSN - 2090-8865

pISSN - 2090-8873

DOI - 10.1155/2014/256473

Subject(s) - ionic liquid , shikimic acid , extraction (chemistry) , chemistry , bromide , aqueous solution , chromatography , solvent , reproducibility , alkyl , organic chemistry , catalysis

An ionic liquids-based ultrasound-assisted extraction (ILUAE) method was successfully developed for extracting shikimic acid from conifer needles. Eleven 1-alkyl-3-methylimidazolium ionic liquids with different cations and anions were investigated and 1-benzyl-3-methylimidazolium bromide solution was selected as the solvent. The conditions for ILUAE, including the ionic liquid concentration, ultrasound power, ultrasound time, and liquid-solid ratio, were optimized. The proposed method had good recovery (99.37%–100.11%) and reproducibility (RSD, n = 6; 3.6%). ILUAE was an efficient, rapid, and simple sample preparation technique that showed high reproducibility. Based on the results, a number of plant species, namely, Picea koraiensis, Picea meyeri, Pinus elliottii, and Pinus banksiana, were identified as among the best resources of shikimic acid.

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