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A selective HPLC method for determination of lercanidipine in tablets

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2003-02-05
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Álvarez Lueje, Alejandro
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A selective HPLC method for determination of lercanidipine in tablets
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Author
  • Álvarez Lueje, Alejandro;
  • Pujol, Silvina;
  • Squella Serrano, Juan;
  • Núñez Vergara, Luis;
Abstract
An HPLC reversed phase method using both UV (356 nm) and electrochemical (1000 mV) detection was developed in order to determine lercanidipine in commercial tablets. Repeatability and reproducibility were adequate. For quantification we have used the calibration plot method for lercanidipine concentration ranging between 1 x 10(-5) and 1 x 10(-4) M. Also, the proposed method is sufficiently selective to distinguish the parent drug and the degradation products after hydrolysis, photolysis or chemical oxidation. Furthermore, the typical excipients included in the drug formulation (talc, lactose, cornstarch, microcrystalline cellulose, carboxymethylcellulose and magnesium stearate) do not interfere with the selectivity of the method. Finally, the proposed chromatographic method was successfully applied to the quantitative determination of lercanidipine in commercial tablets.
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URI: https://repositorio.uchile.cl/handle/2250/120451
ISSN: 0731-7085
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JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS 31(1):1-9
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