期刊
FOOD CHEMISTRY
卷 265, 期 -, 页码 165-172出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.04.020
关键词
Stingless bee honey; Phenolic acids; Graphene-magnetite; Magnetic solid phase extraction
资金
- Ministry of Higher Education Malaysia (MOHE) [Q.J130000.2526.12H57]
Graphene-magnetite composite (G-Fe3O4) was successfully synthesized and applied as adsorbent for magnetic solid phase extraction (MSPE) of two phenolic acids namely 4-hydroxybenzoic acid (4-HB) and 3,4-dihydroxybenzoic acid (3,4-DHB) from stingless bee honey prior to analysis using high performance liquid chromatography with ultraviolet-visible detection (HPLC-UV/Vis). Several MSPE parameters affecting extraction of these two acids were optimized. Optimum MSPE conditions were 50 mg of G-Fe3O4 adsorbent, 5 min extraction time at 1600 rpm, 30 mL sample volume, sample solution pH 0.5, 200 mu L methanol as desorption solvent (5 min sonication assisted) and 5% w/v NaCl. The LODs (3 S/N) calculated for 4-HB and 3,4-DHB were 0.08 and 0.14 mu g/g, respectively. Good relative recoveries (72.6-110.6%) and reproducibility values (RSD < 8.5%, n= 9) were obtained. The developed G-Fe3O4 MSPE method offered is simple, easy, environmental friendly and efficient for extraction of the two phenolic acids from stingless bee honey samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据