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Ajoint GC/MS analysis of aqueous and aqueous-ethanol solutions of some drugs including menthol, validol, benzocaine, novocaine, and menovazin has been performed using a Varian 3900/2100T (USA) instrument equipped with a Varian Factor Four VF-5ms capillary column. The structures of some impurities that were previously based on theoretical considerations are confirmed. Structural-analytical possibilities...
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