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Desarrollo y validación de un método de determinación por espectrofotometría visible de antimoniato de meglumina en inyectables
Development and validation of a colorimetric assay for the determination of meglumine antimoniate in injections
Keywords:
Antimoniato de meglumina, espectrofotometría visible, validación. (es)Meglumine antimomiate, colorimetric assay, validation (en)
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En este artículo se presentan los resultados del desarrollo y de la validación de un método analítico para realizar la determinación de antimoniato de meglumina en un inyectable para uso humano. El método se funda en la medida de la absorción a 352 nm de la coloración producida al hacer reaccionar el antimoniato de meglumina con yoduro de potasio en medio ácido. El método validado se desarrolló para hacer la determinación del antimoniato de meglumina como parte del control de calidad y para llevar a cabo estudios de estabilidad de la molécula en el inyectable. Como variables de validación se estudiaron la selectividad, la linealidad, la precisión, la exactitud y la robustez.
In this paper we present the results obtained during the development and validation of an analytical methodology by a colorimetric method for the assay of meglumine antimoniate in injections. The quantification implies the formation of a colored complex resulting after of meglumine antimoniate and potassium iodure in acid media. The absorbance was made at 352 nm. The validated methodology may be used as a part of quality control with release purpose and also, in chemical stability studies of the injections. As validation parameters, we studied selectivity, lineality, precision, accuracy and robustness.
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Copyright (c) 2007 Revista Colombiana de Ciencias Químico-Farmacéuticas
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