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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (2): 178-180.

• 研究原著 • 上一篇    下一篇

改良 RP-HPLC 法测定血浆中罗哌卡因的含量

董锡臣 ,付朝晖 ,张文众 ,黄宇光   

  1. 中国医学科学院 中国协和医科大学 北京协和医院麻醉科, 北京 100730
  • 收稿日期:2005-12-01 修回日期:2006-01-06 出版日期:2006-02-06 发布日期:2020-10-26
  • 通讯作者: 黄宇光, 通讯作者, 男, 教授, 主任医师, 博士生导师, 研究方向:麻醉 及疼痛基础和临床。 Tel:010-65295580 E-mail:huangyg @csc.pumch.ac.cn E-mail:huangyg @csc.pumch.ac.cn
  • 作者简介:董锡臣, 男, 主治医师, 博士研究生。 Tel:010-65295621 E-mail:doctordong @hotmail.com 黄宇光, 通讯作者, 男, 教授, 主任医师, 博士生导师, 研究方向:麻醉 及疼痛基础和临床。 Tel:010-65295580 E-mail:huangyg @csc.pumch.ac.cn

Determination of ropivacaine in plasma by modified reversed-phase high performance liquid chromatography

DONG Xi-chen , FU Zhao-hui , ZHANG Wen-zhong ,HUANG Yu-guang   

  1. The Department of Anesthesiology , Peking Union Medical College Hospital , Beijing 100730 , China
  • Received:2005-12-01 Revised:2006-01-06 Online:2006-02-06 Published:2020-10-26

摘要: 目的 :采用反相高效液相色谱法测定犬血浆 中罗哌卡因的浓度。方法:待测样品经蛋白沉淀处 理后 ,外标法进行高效液相紫外检测,选用乙腈作为 蛋白沉淀剂, 色谱柱采用 Intertsil C18 柱(4 .6 mm × 250 mm , 5 μm),流动相为甲醇-水相 ,体积比为 50 ∶ 50 ,水相为 0 .005 nmol·ml -1 己烷基磺酸钠, 冰醋酸 调节 pH 至 3 .5 , 检测波长为 215 nm , 流速为 :1 .4 ml·min-1 ;柱温为室温;柱压为 2 800 PSI ,进样体积 为10 μl ,灵敏度为 0 .02AUFS 。结果:在选定的色谱 条件下,罗哌卡因与血浆中的杂质分离良好, 罗哌卡 因的保留时间为 9 .8 min 。罗哌卡因的检测浓度线 性范围为 0 .1 ~ 25 μg·ml -1(r =0 .9992), 最低检测 浓度为 0 .05 μg·ml -1 ,回归方程为 Y =16212 .66X + 37016 .53 ,相关系数 r =0 .9992 ,回收率为 91 .2 %~ 93 .6 %,RSD 为 2 .10 %~ 3 .40 %。结论:本法用于罗 哌卡因类药物给药后血药浓度的检测, 操作简便、可 靠、快捷、准确, 重现性好 。

关键词: 血药浓度 , 局麻药 , 罗哌卡因, 反相高效液 相色谱法 , 血浆

Abstract: AIM :To establish a Reversed-Phase high performance liquid chromatography method for determina- tion of plasma ropivacaine in dog .METHODS:The sam- ple was deproteinated by acetonitrile and determined with RP-HPLC and ultraviolet detection .the analytical column was Intertsil C18 column (4 .6 mm×250 mm, 5 μm).The mobile phase consisted of methanol :H2O(50 ∶50), the detection wavelength was 215 nm and the flow rate was 1 .4 ml·min -1 , the column temperature was 20 ℃, the sensitivity was 0 .02AUFS respectively .The volume of sample for detection is 10 μl .RESULTS:The linear range was 0 .1 -25 μg·ml-1(r =0 .9992).The recovery of ropivacaine was 91 .2 %-93 .6 %, RSD was 2 .10 %- 3 .40 %(n =6).The detection limit was 0 .05 μg·ml -1 . the intra-day and interday precisions of assay for ropiva- caine was 1 .35 %-2 .88 % and 1 .80 %-3 .76 %.The quantative analysis of ropivacaine in plasma was not inter- fered by impurities .CONCLUSION:The assay method was shown to be suitable for determination the concentra- tion of ropivacaine in plasma.The method is simple , ac- curate , sensitive and reproducible .

Key words: RP-HPLC, plasma concentration , ropiv- acaine , local anesthetics , plasma

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