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| 酒石酸酯立体选择性萃取分离功夫菊酸对映体 | |
| 引用本文： | 索会锋,蒋玉仁,易健民,唐课文.酒石酸酯立体选择性萃取分离功夫菊酸对映体[J].分析试验室,2009,28(1). |
| 作者姓名： | 索会锋 蒋玉仁 易健民 唐课文 |
| 作者单位： | 1. 中南大学化学化工学院,长沙,410083 2. 中南大学化学化工学院,长沙,410083;湖南理工学院化学化工系,岳阳,414000 3. 湖南理工学院化学化工系,岳阳,414000 |
| 基金项目： | 国家自然科学基金，湖南省教育厅科学研究项目 |
| 摘 要： | 研究了功夫菊酸对映体在含有手性选择剂酒石酸酯的水-有机相双相体系中的萃取分配行为,考察了水相的pH、酒石酸酯的浓度、磷酸盐浓度、温度和酒石酸酯烷基链长度对分配系数(K)和分离因子(α)的影响.研究结果表明:分配系数(K)随pH的升高而降低,随着酒石酸酯浓度的增大而增大,分离因子(α)随pH的升高和酒石酸酯浓度的增大先增加后降低,pH和酒石酸酯浓度分别为5.50和0.30 mol/L时取得较好的分离效果;分配系数(K)和分离因子(α)都随磷酸盐浓度增大而减小;温度、取代烷基链长对分配系数(K)和分离因子(α)亦有较大影响. |
| 关 键 词： | 酒石酸酯 手性拆分 功夫菊酸 拟除虫菊酯 |
Enantioselective separation of lambda-cyhalothric acid enantiomers by chiral extraction with tartaric esters |
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| SUO Hui-feng,JIANG Yu-ren,YI Jian-min,TANG Ke-wen.Enantioselective separation of lambda-cyhalothric acid enantiomers by chiral extraction with tartaric esters[J].Chinese Journal of Analysis Laboratory,2009,28(1). | |
| Authors: | SUO Hui-feng JIANG Yu-ren YI Jian-min TANG Ke-wen |
| Institution: | 1;2;1.College of Chemistry and Chemical Engineering;Central South University;Changsha 410083;2.Department of Chemistry and Chemical Engineering;Hunan Institute of Science and Technology;Yueyang 414000 |
| Abstract: | Partition behavior of lambda-cyhalothric acid enantiomers was examined in two phase system of water and 1,2-diochloroethane containing the chiral selector tartaric esters.The influences of pH,the concentrations of tartaric ester,concentrations of phosphate salt,extraction temperature and length of alkyl chain of tartaric esters on the parti- tion coefficients and separation factors were investigated.The results showed that K increased with increasing the con- centration of tartaric ester,but a increased fir... |
| Keywords: | Tartaric esters Chiral separation Lambda-cyhalothric acid Pyrethroid |
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