| 732阳离子交换树脂吸附L-组氨酸的特性 |
| |
| 引用本文： | 邹建辉,翁连进,王士斌,甘林火,杨欣.732阳离子交换树脂吸附L-组氨酸的特性[J].化学工程,2006,34(2):1-3. |
| |
| 作者姓名： | 邹建辉 翁连进 王士斌 甘林火 杨欣 |
| |
| 作者单位： | 华侨大学,化工系,福建,泉州,362011 |
| |
| 基金项目： | 国家自然科学基金资助项目(30370415)，福建省科技计划重点项目(2004H013)，泉州市科技计划重点项目(2004G48)，泉州市科技计划重大子项目(2005ZD4_5) |
| |
| 摘 要： | 测定25℃下732阳离子交换树脂吸附L-组氨酸的动力学曲线和吸附等温线,考察了pH值、硫酸铵浓度、L-赖氨酸和L-精氨酸对吸附的影响。结果表明,Freund lich方程可以较好地描述732阳离子交换树脂对L-组氨酸的吸附,由Freund lich方程求得其平衡吸附量为142.32 g/L;吸附率随pH值的增大而减小,适宜在小于5.4时吸附;NH4+的存在使L-组氨酸的吸附率明显下降,当NH4+浓度达到1.0 mol/L时吸附率仅为42.32%;L-赖氨酸或L-精氨酸的存在使吸附率略微减小。
|
| 关 键 词： | L-组氨酸 离子交换 吸附 |
| 文章编号： | 1005-9954（2006）02-0001-03 |
Study on the adsorption of L-histidine by 732 cation exchange resin |
| |
| ZOU Jian-hui,WENG Lian-jin,WANG Shi-bin,GAN Lin-huo,YANG Xin.Study on the adsorption of L-histidine by 732 cation exchange resin[J].Chemical Engineering,2006,34(2):1-3. |
| |
| Authors: | ZOU Jian-hui WENG Lian-jin WANG Shi-bin GAN Lin-huo YANG Xin |
| |
| Affiliation: | Department of Chemical Engineering, Huaqiao University, Quanzhou 362011, Fujian Province, China |
| |
| Abstract: | Adsorption kinetic curve and isotherm of L-histidine on 732 cation exchange resin were measured at(25 ℃,) and effects of pH value,temperature,(NH_4)_2SO_4 concentration,L-lysine and L-arginine concentration on adsorption were investigated.Results show that the Freundlich model can describe the adsorption well;according to the Freundlich Equation the saturation adsorbance is 142.32 g/L;adsorption ratio decreases with the increasing of pH value,so the suitable pH value should be lower than 5.4;the existence of NH~+_4 makes adsorption ratio decrease obviously,and it decreases to 42.32% when NH~+_4 concentration reaches 1.0 mol/L;the existence of(L-lysine) or L-arginine makes adsorption ratio decrease slightly. |
| |
| Keywords: | ion exchange L-histidine adsorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
