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  • Title: Gas chromatographic determination of histapyrrodine hydrochloride in pharmaceutical preparations.
    Author: Sane RT, Doshi VJ, Joshi SK, Shastri VK, Sapre DS, Jukar S, Sawant SV.
    Journal: J Assoc Off Anal Chem; 1986; 69(4):612-3. PubMed ID: 2875057.
    Abstract:
    A simple gas chromatographic method is described for the determination of histapyrrodine HCl in marketed formulations. Chlorpheniramine maleate is used as the internal standard. The amount of histapyrrodine HCl found by the proposed method averaged 19.91 mg/tablet, compared with the label claim of 20 mg/tablet. The method was statistically evaluated for accuracy and precision.
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