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pubmed-article:16054321pubmed:dateCreated2005-10-14lld:pubmed
pubmed-article:16054321pubmed:abstractTextA simple, sensitive and selective liquid chromatography coupled with electrospray ionization mass spectrometry (LC/ESI/MS) method for determination of limonin (LM) in rat plasma has been developed and validated. The method had advantages of a single liquid-liquid extraction with ether and high sensitivity. Analyses were conducted at a flow rate of 0.2 ml/min by a gradient elution. The detection utilized selected ion monitoring in the negative ion mode at m/z 460.00 and 423.15 for the deprotonated molecular ions of LM and the internal standard, respectively. The quantitation limit for LM in rat plasma was 1.0 ng/ml. The linearity was also excellent over the concentration range of 1.9-500 ng/ml of LM. The intra- and inter-day precision (relative standard deviation (R.S.D.%)) was lower than 10% and accuracy ranged from 90 to 110%, showing a good reproducibility. This developed method was successfully applied to analysis of LM in biological fluids.lld:pubmed
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pubmed-article:16054321pubmed:authorpubmed-author:SzeS HSHlld:pubmed
pubmed-article:16054321pubmed:authorpubmed-author:LuTongTlld:pubmed
pubmed-article:16054321pubmed:authorpubmed-author:WangGuang-JiG...lld:pubmed
pubmed-article:16054321pubmed:authorpubmed-author:LiangYanYlld:pubmed
pubmed-article:16054321pubmed:authorpubmed-author:LiuXiao-DongX...lld:pubmed
pubmed-article:16054321pubmed:authorpubmed-author:HuYu-ZhuYZlld:pubmed
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pubmed-article:16054321pubmed:articleTitleDetermination of limonin in rat plasma by liquid chromatography-electrospray mass spectrometry.lld:pubmed
pubmed-article:16054321pubmed:affiliationChina Pharmaceutical University, Shennong Road No. 1, Nanjning 210038, China.lld:pubmed
pubmed-article:16054321pubmed:publicationTypeJournal Articlelld:pubmed