CAJ | 학술논문

研究了吸附时间、固液比、样品浓度、上样流速对N-甲基咪唑键合硅胶固定化离子液体(SilprMim)吸附黄酮类化合物性能的影响.结果表明,受试化合物在30 min内均达到吸附平衡;吸附效率随固液比增大而增加,随样品浓度增大而降低;吸附等温线与拟合的Langmuir模型吻合良好.SilprMim对染料木素、木犀草素及槲皮素的饱和吸附量分别为47.7, 52.5和63.2 mg/g,上样流速在0.5～1.5 mL/min范围内吸附效率达90%以上;甲醇洗脱染料木素、木犀草素及槲皮素的解吸率分别为86.1%, 83.3%和84.6%;解吸顺序为:染料木素、木犀草素、槲皮素.SilprMim对3种受试黄酮类化合物具有较强吸附和分离能力,有望应用于黄酮类天然产物的分离纯化.
연구료흡부시간、고액비、양품농도、상양류속대N-갑기미서건합규효고정화리자액체(SilprMim)흡부황동류화합물성능적영향.결과표명,수시화합물재30 min내균체도흡부평형;흡부효솔수고액비증대이증가,수양품농도증대이강저;흡부등온선여의합적Langmuir모형문합량호.SilprMim대염료목소、목서초소급곡피소적포화흡부량분별위47.7, 52.5화63.2 mg/g,상양류속재0.5～1.5 mL/min범위내흡부효솔체90%이상;갑순세탈염료목소、목서초소급곡피소적해흡솔분별위86.1%, 83.3%화84.6%;해흡순서위:염료목소、목서초소、곡피소.SilprMim대3충수시황동류화합물구유교강흡부화분리능력,유망응용우황동류천연산물적분리순화.
The effects of adsorption time, solid-liquid ratio, sample concentration, flow rate on the adsorption properties of supported ionic liquids(the N-methylimidazolium functionalized silica, SilprMin) for flavonoids were investigated. The results indicated that the adsorption equilibrium for tested compounds, genistein, luteolin and quercetin, was achieved within 30 min, the adsorption efficiencies of these three compounds were improved with the increase of solid-liquid ratio, and decreased with the increase of their concentrations. Moreover, the adsorption isotherm data of the three tested compounds were in good concordance with the Langmuir model. The saturated adsorption capacity of SilprMim for genistein, luteolin and quercetin was 47.7, 52.5 and 63.2 mg/g, respectively. Adsorption efficiency of SilprMim could reach more than 90% at a sample flow rate of 0.5～1.5 mL/min. Using methanol as eluent, the saturated desorption efficiencies of genistein, luteolin and quercetin were 86.1%, 83.3% and 84.6%, respectively. The elution order of the three tested flavonoids was genistein, luteolin and quercetin. SilprMim had strong adsorption and separation capacity for three tested flavonoids, which was hopeful to be applied in separation and purification of naturally occurring flavonoids.