中华医学超声杂志

应用化学 ›› 2009, Vol. 26 ›› Issue (12): 1492-1494.

• 研究简报 • 上一篇    下一篇

双水相气浮浮选光度法分离/测定废水中痕量土霉素

侯延民1,2,谢吉民1*,李春香1,赵晓军2   

  1. (1.江苏大学化学化工学院 镇江 212013;2.平顶山学院化学化工学院 平顶山)
  • 收稿日期:2008-12-09 修回日期:2009-07-05 出版日期:2009-12-10 发布日期:2009-12-10
  • 通讯作者: 谢吉民，男,教授, 博士生导师; E-mail:xiejm@ujs.edu.cn; 研究方向：环境化学和生物无机化学
  • 基金资助:
    国家自然科学基金资助项目(20077029);江苏省高校自然科学基础研究项目(07KJB610021)

Aqueous Two-phase Gas Floatation Spectrometric Determination of Trace Oxytetracycline in Waste Water

 HOU Yan-Min1,2, XIE Ji-Min1*, LI Chun-Xiang1, ZHAO Xiao-Jun2   

  1. (1.School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212013;
    2.School of Chemistry and Chemical Engineering,Pingdingshan University,Pingdingshan)
  • Received:2008-12-09 Revised:2009-07-05 Published:2009-12-10 Online:2009-12-10

PDF

1306

被引次数

12 | 4

摘要：

利用自制的浮选装置，选择四氢呋喃作溶剂，氯化钠作分相剂，NaOH溶液调节酸度，将Zn(II)与OTC形成的疏水性缔合物浮选至有机相，浮选完毕后经分光光度法分析，方法线性回归方程为A=2.038×105c(mol/L)+0.005，相关系数r=0.9996，线性范围：1.1×10-7~9.7×10-5 mol/L；检出限7.36×10-8 mol/L；回收率99.8~100.4%；表观摩尔吸光系数ε=2.038×105 L/(mol•cm)，适用于废水中痕量土霉素的分离/富集及分析测定。

关键词: 双水相气浮浮选, 分光光度法, 废水, 土霉素

Abstract:

A novel and green method for separating and enriching trace OTC in waste water by aqueous two-phase gas floatation spectrophotometry has been proposed.The hydrophobic complex composed of Zn(II) and OTC was floated into organic phase under the optimal conditions: pH=9, the floatation equipment was home-made, tetrahydrofuran as organic solvent, sodium chloride as separating phase reagent. The data was obtained by spectrophotometry after floatation, the linear regression equation was A=2.038×105C(mol•L-1)+0.005, linear range was from 1.1×10-7 to 9.7×10-5 mol•L-1, correlation coefficient (r) better than 0.9996, relative recovery was 99.8~100.4% , and the limit of detection was 7.36×10-8mol•L-1. It can be applied to analyse the trace OTC in waste water , the results were better.

Key words: Aqueous two-phase gas floatation, spectrophotometry, waste water, Zine(II)

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