Determination of N-acetyl retigabine in dog plasma by LC/MS/MS following off-line microElution 96-well solid phase extraction. 2007

Wei Bu, and Mai Nguyen, and Christine Xu, and Chin-Chung Lin, and Li-Tain Yeh, and Virginia Borges
Valeant Research & Development, 3300 Hyland Avenue, Costa Mesa, CA 92626, USA. wbu@anacor.com

A high throughput off-line microElution 96-well solid phase extraction (SPE) followed by liquid chromatography with tandem mass spectrometry (LC/MS/MS) quantification for the determination of N-acetyl retigabine in dog plasma has been developed and validated. The method involves the use of microElution 96-well SPE for the simultaneous extraction of N-acetyl retigabine and rapid removal of its N-glucuronide metabolite that has shown to be problematic due to its instability using other clean-up methods. The microElution SPE technology eliminates the need for post-extraction solvent evaporation and greatly reduces sample preparation time consequently improving assay efficiency.

UI MeSH Term Description Entries
D008297 Male Males
D010655 Phenylenediamines Aniline compounds that contain two amino groups. They are used as a precursor in the synthesis of HETEROCYCLIC COMPOUNDS and POLYMERS. p-Phenylenediamine is used in the manufacture of HAIR DYES and is an ALLERGEN.
D012015 Reference Standards A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy. Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D002138 Calibration Determination, by measurement or comparison with a standard, of the correct value of each scale reading on a meter or other measuring instrument; or determination of the settings of a control device that correspond to particular values of voltage, current, frequency or other output. Calibrations
D002219 Carbamates Derivatives of carbamic acid, H2NC( Carbamate,Aminoformic Acids,Carbamic Acids,Acids, Aminoformic,Acids, Carbamic
D002853 Chromatography, Liquid Chromatographic techniques in which the mobile phase is a liquid. Liquid Chromatography
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity

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