食品科学 ›› 2012, Vol. 33 ›› Issue (12): 215-218.doi: 10.7506/spkx1002-6630-201212043

• 分析检测 • 上一篇    下一篇

流动注射化学发光法测定尿液和血清中培氟沙星残留

任乃林,李 红   

  1. 韩山师范学院化学系
  • 出版日期:2012-06-25 发布日期:2012-07-27
  • 基金资助:
    韩山师范学院重点科研项目

Determination of Pefloxacin Residue in Urine and Serum by Flow Injection Chemiluminescence

REN Nai-lin,LI Hong   

  1. (Department of Chemistry, Hanshan Normal University, Chaozhou 521041, China)
  • Online:2012-06-25 Published:2012-07-27

摘要: 建立尿液和血清中培氟沙星药物残留的分析方法。利用Tb3+能增强Ce(Ⅳ)-SO32--PEFX体系的发光强度,建立测定培氟沙星的新方法。体系的发光强度与培氟沙星质量浓度在2×10-9~6×10-7g/mL范围内呈良好的线形关系,方法检出限为8.8×10-10g/mL,对1×10-7g/mL 培氟沙星平行测定11次,相对标准偏差为3.1%。利用该法测定人尿样和鸭血清中培氟沙星,并进行回收率测定,回收率在98.5%~102.5%,结果令人满意。

关键词: 流动注射化学发光法, 培氟沙星, 铽, 尿样, 血清

Abstract: An analytical method to determine pefloxacin (PEFX) residue in urine and serum was established based on the fact that the presence of Tb3+ enhances the luminous intensity of Ce(Ⅳ)-SO32-- PEFX system. There was a good linear relationship between the luminous intensity of the system and PEFX concentration over the range of 2 × 10-9-6 × 10-7 g/mL. The limit of detection for PEFX was 8.8 × 10-10 g/mL. The relative standard deviation for 11 parallel determination of PEFX at 1 × 10-7 g/mL was 3.1%. The average spike recoveries of PEFX from human urine and duck serum ranged from 98.5% to 102.5%.

Key words: flow injection chemiluminescence, pefloxacin, terbium, urine, serum

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