| 聚乙二醇-硫酸铵双水相萃取结晶紫的研究 |
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| 引用本文： | 巩育军,姚晓青,薛鹏升.聚乙二醇-硫酸铵双水相萃取结晶紫的研究[J].化学与生物工程,2011,28(11). |
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| 作者姓名： | 巩育军 姚晓青 薛鹏升 |
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| 作者单位： | 广东石油化工学院,广东茂名,525000 |
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| 基金项目： | 广东省科技计划资助项目(2010B031700011) |
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| 摘 要： | 利用分光光度法研究了结晶紫在聚乙二醇-硫酸铵双水相体系中的萃取行为,探讨了质量配比(mPEG/m(NH4)2SO4)、温度、结晶紫浓度对结晶紫的分配系数(cup/clow)及萃取率的影响。结果表明,在一定的温度和结晶紫浓度下,随着质量配比的减小,结晶紫的分配系数增大,萃取率略有降低;在一定的质量配比和结晶紫浓度下,随着温度的升高,分配系数显著增大,萃取率基本保持不变;在一定的质量配比和温度下,随着结晶紫浓度的增大,分配系数显著减小,萃取率基本保持不变;在mPEG/m(NH4)2SO4为1.25∶1、结晶紫浓度为6.536×10-5 mol.L-1、温度为50℃的条件下,萃取率高达99.81%。
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| 关 键 词： | 结晶紫 聚乙二醇 双水相 分配系数 萃取率 |
Study on the Extraction Behaviors of Crystal Violet in PEG/Ammonium Sulfate Aqueous Two-Phase System |
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| GONG Yu-jun,YAO Xiao-qing,XUE Peng-sheng.Study on the Extraction Behaviors of Crystal Violet in PEG/Ammonium Sulfate Aqueous Two-Phase System[J].Chemistry & Bioengineering,2011,28(11). |
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| Authors: | GONG Yu-jun YAO Xiao-qing XUE Peng-sheng |
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| Affiliation: | GONG Yu-jun,YAO Xiao-qing,XUE Peng-sheng(Guangdong University of Petrochemical Technology,Maoming 525000,China) |
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| Abstract: | Extraction behaviors of crystal violet in PEG/ammonium sulfate aqueous two-phase system were studied by spectrophotometry.Effects of mass ratio of PEG to(NH4)2SO4,temperature and concentration of crystal violet on the partition ratio(cup/clow) of crystal violet and its extraction rate were investigated.The experimental results showed:the partition ratio for crystal violet was increased with mPEG/m(NH4)2SO4 decreasing under a certain temperature and concentration, and the extraction rate was decreased slight... |
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| Keywords: | crystal violet polyethyleneglycol(PEG) aqueous two-phase system partition ratio extraction rate |
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