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| 双水相气浮浮选光度法处理环境水样中痕量土霉素残留物 | |
| 引用本文： | 侯延民,闫永胜,李春香,赵晓军.双水相气浮浮选光度法处理环境水样中痕量土霉素残留物[J].环境污染与防治,2009,31(5). |
| 作者姓名： | 侯延民 闫永胜 李春香 赵晓军 |
| 作者单位： | 1. 平顶山学院化学化工学院,河南,平顶山,467000;江苏大学化学化工学院,江苏,镇江,212013 2. 平顶山学院化学化工学院,河南,平顶山,467000 3. 江苏大学化学化工学院,江苏,镇江,212013 |
| 基金项目： | 国家自然科学基金，江苏省高校自然科学基础研究项目 |
| 摘 要： | 建立了一种新型分离方法--双水相气浮浮选光度法,使其处理环境水样中痕量土霉紊(OTC)残留物,研究了其工作原理,并用高效液相色谱法对该方法的可靠性进行了验证.利用自制的双水相气浮浮选装置,选择四氢呋喃作亲水有机溶剂、质量分数为10%的NaCl溶液作分相剂,NaOH溶液调节pH,将Cu2+与OTC形成的疏水配合物浮选至有机相,实现OTC与水样分离.浮选完毕后,经紫外-可见分光光度法分析,线性回归方程为A=1.532×105c+0.1230(其中:A为有机相的吸光度;c为水样的OTC摩尔浓度,mol/L),相关系数为0.9998,该方法的线性范围为4.8×10-7～7.3×10-5 mol/L,OTC加标回收率为99.5%～100.1%. |
| 关 键 词： | 双水相气浮浮选 紫外-可见分光光度法 高效液相色谱 土霉素 |
Extraction-floatation spectrophotometric measurement of trace level oxytetracycline |
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| Hou Yanmin,Yan Yongsheng,Li Chunxiang,Zhao Xiaojun.Extraction-floatation spectrophotometric measurement of trace level oxytetracycline[J].Environmental Pollution & Control,2009,31(5). | |
| Authors: | Hou Yanmin Yan Yongsheng Li Chunxiang Zhao Xiaojun |
| Affiliation: | 1.School of Chemistry and Chemical Engineering;Pingdingshan University;Pingdingshan Henan 467000;2.School of Chemistry and Chemical Engineering;Jiangsu University;Zhenjiang Jiangsu 212013 |
| Abstract: | The paper presents a novel and green analytical method for measurement of trace level oxytetracycline(OTC) in water samples.An aliquot of CuSO4 solution was added to the sample to form hydrophobic Cu2+-OTC complex which was separated and concentrated by solvent(tetrahydrofuran) extraction and gas floatation before measurement by the HPLC;NaCl,NaOH were employed to provide the optimal ionic strength for extraction/floatation at pH of 8.The method is accurate,highly reproducible and applicable over a wide con... |
| Keywords: | Cu2 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
