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Publications


지원과제 BMRC
저자명 Kim KB, Seo KA, Kim SE, Bae SK, Kim DH, Shin JG.
학회정보 J Pharm Biomed Anal. 56(4):771-7 / 2011.12
제 목 Simple and accurate quantitative analysis of ten antiepileptic drugs in human plasma by liquid chromatography/tandem mass spectrometry.
LINK www.ncbi.nlm.nih.gov/pubmed/21840666
게시일 2014-02-12 14:05:54
년도 2011-International
내용 Abstract
A simple, accurate, and sensitive liquid chromatography (LC)-tandem mass spectrometry (MS/MS) method has been developed for the simultaneous quantification of 10 antiepileptic drugs (AEDs; gabapentin (GBP), levetiracetam (LEV), valproic acid (VPA), lamotrigine (LTG), carbamazepine-10,11-epoxide (CBZ-epoxide), zonisamide (ZNS), oxcarbazepine (OXC), topiramate (TPM), carbamazepine (CBZ), phenytoin (PHT)) in human plasma as a tool for drug monitoring. d(10)-Phenytoin (d(10)-PHT) and d(6-)valproic acid (d(6)-VPA) were used as internal standards for the positive- and negative-ionization modes, respectively. Plasma samples were precipitated by the addition of acetonitrile, and supernatants were analyzed on a C18 reverse-phase column using an isocratic elution. Detection was carried out in selected reaction monitoring (SRM) mode. The calibration curves were linear over a 50-fold concentration range, with correlation coefficients (r(2)) greater than 0.997 for all AEDs. The intra- and inter-day precision was less than 12%, and the accuracy was between 85.9 and 114.5%. This method was successfully used in the identification and quantitation of AEDs in patients undergoing mono- or polytherapy for epilepsy.