| 吸附树脂对山竹黄酮化合物吸附特性的研究 |
| |
| 引用本文： | 高虹,黎碧娜,梁国超,梁燕文.吸附树脂对山竹黄酮化合物吸附特性的研究[J].精细石油化工,2008,25(2):50-53. |
| |
| 作者姓名： | 高虹 黎碧娜 梁国超 梁燕文 |
| |
| 作者单位： | 1. 广东轻工职业技术学院轻化工程系,广东广州,510300
2. 广东工业大学轻工化工学院,广东广州,510090 |
| |
| 基金项目： | 广东省科技厅科技计划，广东轻工职业技术学院校科研和教改项目 |
| |
| 摘 要： | 研究了S-8、LSA-5B、X-53种吸附树脂分离纯化山竹夹层中黄酮类化合物的静态吸附过程。吸附动力学实验表明树脂吸附速率较快,1.5h基本达到吸附平衡,符合拟二级动力学吸附方程,吸附速率常数:k_(X-5树脂)>k_(LSA-5B树脂)>k_(S-8树脂)。在等温条件下,LSA-5B树脂、S-8树脂对黄酮类化合物的吸附量随初始吸附浓度的变化遵循Langmuir和Freundich吸附等温方程,X-5树脂仅遵循Freundich吸附等温方程。3种树脂的吸附自由能ΔG<0,是自发吸附。
|
| 关 键 词： | 山竹夹层 黄酮 吸附树脂 动力学 吸附等温 |
ADSORPTION CHARACTERISTIC OF FLAVONOIDS GARCINIA MANGOSTANA L.ONTO RESINS |
| |
| Gao Hong,Li Bina,Liang Guohui,Liang Yanwen.ADSORPTION CHARACTERISTIC OF FLAVONOIDS GARCINIA MANGOSTANA L.ONTO RESINS[J].Speciality Petrochemicals,2008,25(2):50-53. |
| |
| Authors: | Gao Hong Li Bina Liang Guohui Liang Yanwen |
| |
| Abstract: | The adsorption performance of flavonoids onto S-8/X-5/LSA-SB resins was studied and the adsorption kinetics and isotherm equations were simulated.The results indicated that not only Lang- muir but also Freundlich equations were perfectly fit for the adsorption of flavonoids onto S-8 and LSA-SB resins. X-5 resin was only fit for the Freundlich equation. Data on three resins were correla- ted to the Ho second-order kinetics equations. The velocity constants of adsorption kinetics for fla- vonoids onto the three resins were:X-5 resin>LSA-SB resin>S-8 resin. The adsorption rate was fast and the equilibrium was arrived in 1.5 h. The adsorption free energyΔG<0, so the adsorprion per- formance were unprompted. |
| |
| Keywords: | Garcinia mangostana L flavonoids resin kinetics isotherm equation |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
