New hplc method

Details New hplc method New hplc method

G - Physics

01

N

G01N 30/88 (2006.01)

Patent

CA 2709262

be present invention relates to new IIPLC methods for the analysis of the drug substance clopidogrel and related substances. In a first method the mobile phase comprises two or more liquids, and the relative concentration of the liquids is var-ied to a predetermined gradient. In a second method the mobile phase comprises a polar protic organic solvent, and the stationary phase comprises a gel. The present invention also relates to a method for analysing a substance, comprising the detection and op-tional quantification of one or more specific impurities.

La présente invention a trait à de nouveaux procédés de CLHP pour l'analyse de la substance médicamenteuse appelée le clopidogrel et de substances liées. Dans un premier procédé, la phase mobile comprend deux liquides ou plus et la concentration relative des liquides est modifiée suivant un gradient prédéterminé. Dans un second procédé, la phase mobile comprend un solvant organique protique polaire et la phase stationnaire comprend un gel. La présente invention a également trait à un procédé permettant d'analyser une substance, lequel procédé comprend les étapes consistant à détecter, et à quantifier de façon facultative, la ou les impuretés spécifiques.

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