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JOURNAL ARTICLE

RP-HPLC-UV method development and validation for simultaneous determination of terbutaline sulphate, ambroxol HCl and guaifenesin in pure and dosage forms

N Itagimatha, D H Manjunatha
Annales Pharmaceutiques Françaises 2019 April 23
31027752

OBJECTIVE: The objective of the present work was to develop and validate a simple, sensitive, rapid and stable reverse-phase high performance liquid chromatography (RP-HPLC) method for a combination of Terbutaline sulphate (TSL), Ambroxol hydrochloride (AML) and Guaifenesin (GFN).

METHOD: The combination of these drugs was analyzed by using Shimadzu LC 2010 CHT high performance liquid chromatography (HPLC). Successful separation was achieved by isocratic elution on a reverse-phase C18 column (sun fire) (250mm, 4.6mm, 5μ), using a mobile phase consisting of buffer: acetonitrile in the ratio 80: 20 (buffer - 0.1% v/v triethyleamine pH-3.0) followed by 1.0mL/min flow rate. The wavelength of detection was at 220nm.

RESULT: The chromatographic retention times were consistent at 3.0, 10.5 and 13.8minutes for TSL, AML and GFN respectively. For these three compounds, the lower limit of detection was 1.0, 1.25, and 1.5μg/mL and lower limit of quantification was 3.3, 4.1 and 5.0μg/mL respectively. The linearity concentrations established for TSL, AML and GFN were 1.0-7.0, 1.5-7.5 and 4.0-14.0μg/mL respectively. The correlation coefficients for all the drugs were found to be greater than 0.999. The relative standard deviation of inter- and intra-day were less than 2.0%.

CONCLUSION: This method provides a necessary tool for quantification of the selected drugs for their assay. The proposed method is simple, accurate, reproducible and applied successfully to analyze three compounds in pure as well dosage form.

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