›› 2016, Vol. 1 ›› Issue (12): 30-35.

• 化学 • 上一篇    下一篇

两种新萃取技术与光度法联用测盐酸洛美沙星

  

  • 收稿日期:2016-09-22 修回日期:2016-11-09 出版日期:2016-12-15 发布日期:2016-12-15
  • 通讯作者: (College of Pharmacy and Chemistry, Dali University, Dali, Yunnan 671000, China)
  • 作者简介:雷自荣,硕士研究生,主要从事药物分析研究.
  • 基金资助:

    国家自然科学基金资助项目(21165001;21465001)

Investigation of Two Novel Extraction Methods Coupled with Spectrophotometry for the Detection of
Lomefloxacin Hydrochloride

  1. (大理大学药学与化学学院,云南大理671000)
  • Received:2016-09-22 Revised:2016-11-09 Online:2016-12-15 Published:2016-12-15

摘要:

目的:将表面活性剂辅助-分散液液微萃取(SA-DLLME)和超声辅助-分散液液微萃取(UA-DLLME)与紫外-可见分光
光度法(UV-vis)联用对盐酸洛美沙星(LMFH)进行预富集和测定,比较两种方法的分析性能。方法:优化实验条件,对比两种新
方法与光度法联用测定该药物的分析性能。结果:在最优条件下SA-DLLME和UA-DLLME测定LMFH的检出限(LOD)分别为
4.0 μg/L和6.0 μg/L,富集倍数达31倍和20倍。结论:SA-DLLME表现优于UA-DLLME,两种方法都显著提高了普通分光光度法
分析测定该药物的灵敏度,拓展了分光光度法的应用范围。为验证所建立方法的准确性和实用性,进行了样品测定,结果准确。

关键词: 表面活性剂辅助-分散液液微萃取, 超声辅助-分散液液微萃取, 预富集, 分光光度法, 盐酸洛美沙星

Abstract:

Objective: Surfactant-assisted dispersive liquid-liquid microextraction(SA-DLLME)and ultrasound-assisted dispersive
liquid-liquid microextraction(UA-DLLME)were coupled with conventional spectrophotometer to pre-concentrate and determine
lomefloxacin hydrochloride(LMFH), as well as to compare their analytical performances. Methods: The experimental conditions were
optimized and the analytical performances of the two kinds of DLLME techniques for LMFH determination were compared. Results:
After optimization, the LODs were 4.0 μg/L and 6.0 μg/L for SA-DLLME and UA-DLLME, respectively, with the enhancement factors
of 31 and 20 folds. Conclusion: The analytical performance of SA-DLLME was obviously better than UA-DLLME. The developed
methods were applied to the determination of LMFH in real samples with satisfactory analytical results.

Key words: surfactant-assisted dispersive liquid-liquid microextraction, ultrasound-assisted dispersive liquid-liquid microextraction, pre-concentration, spectrophotometer, lomefloxacin hydrochloride

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