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Validated Stability-Indicating RP-HPLC Method for the Simultaneous Determination of Azelnidipine and Olmesartan in Their Combined Dosage Form.

Patel JK, Patel NK - Sci Pharm (2014)

Bottom Line: The retention times for Azelnidipine and Olmesartan were about 8.56 and 3.04 min, respectively.Calibration curves were linear in the ranges of 2-48 μg/mL for Azelnidipine and 2.5-60 μg/mL for Olmesartan with correlation coefficients >0.990.The proposed method proved to be selective and stability-indicating by the resolution of the two analytes from the forced degradation (hydrolysis, oxidation, and photolysis) products.

View Article: PubMed Central - PubMed

Affiliation: Nootan Pharmacy College, S.P. Sahkar Vidhyadham, Kamana Crossing, Visnagar 384315, Mehsana, Gujarat, India.

ABSTRACT
A simple, rapid, and highly selective RP-HPLC method was developed for the simultaneous determination of Azelnidipine (AZL) and Olmesartan (OLM) drug substances in the fixed dosage strength of 16 mg and 20 mg, respectively. Effective chromatographic separation was achieved using a Hypersil GOLD C18 column (150 mm × 4.6 mm internal diameter, 5 µm particle size) with a mobile phase composed of methanol, acetonitrile, and water in the ratio of 40:40:20 (by volume). The mobile phase was pumped using a gradient HPLC system at a flow rate of 0.5 mL/min, and quantification of the analytes was based on measuring their peak areas at 260 nm. The retention times for Azelnidipine and Olmesartan were about 8.56 and 3.04 min, respectively. The reliability and analytical performance of the proposed HPLC procedure were statistically validated with respect to system suitability, linearity, ranges, precision, accuracy, specificity, robustness, detection, and quantification limits. Calibration curves were linear in the ranges of 2-48 μg/mL for Azelnidipine and 2.5-60 μg/mL for Olmesartan with correlation coefficients >0.990. The proposed method proved to be selective and stability-indicating by the resolution of the two analytes from the forced degradation (hydrolysis, oxidation, and photolysis) products. The validated HPLC method was successfully applied to the analysis of AZL and OLM in their combined dosage form.

No MeSH data available.


Related in: MedlinePlus

HPLC chromatogram of the tablet solution upon exposure to sunlight for 6 hours, AZL (8.207 minutes), OLM (3.287 minutes). The unknown degraded impurity appeared at 2.668, 4.664, and 5.766 minutes.
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Figure 7: HPLC chromatogram of the tablet solution upon exposure to sunlight for 6 hours, AZL (8.207 minutes), OLM (3.287 minutes). The unknown degraded impurity appeared at 2.668, 4.664, and 5.766 minutes.


Validated Stability-Indicating RP-HPLC Method for the Simultaneous Determination of Azelnidipine and Olmesartan in Their Combined Dosage Form.

Patel JK, Patel NK - Sci Pharm (2014)

HPLC chromatogram of the tablet solution upon exposure to sunlight for 6 hours, AZL (8.207 minutes), OLM (3.287 minutes). The unknown degraded impurity appeared at 2.668, 4.664, and 5.766 minutes.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4318177&req=5

Figure 7: HPLC chromatogram of the tablet solution upon exposure to sunlight for 6 hours, AZL (8.207 minutes), OLM (3.287 minutes). The unknown degraded impurity appeared at 2.668, 4.664, and 5.766 minutes.
Bottom Line: The retention times for Azelnidipine and Olmesartan were about 8.56 and 3.04 min, respectively.Calibration curves were linear in the ranges of 2-48 μg/mL for Azelnidipine and 2.5-60 μg/mL for Olmesartan with correlation coefficients >0.990.The proposed method proved to be selective and stability-indicating by the resolution of the two analytes from the forced degradation (hydrolysis, oxidation, and photolysis) products.

View Article: PubMed Central - PubMed

Affiliation: Nootan Pharmacy College, S.P. Sahkar Vidhyadham, Kamana Crossing, Visnagar 384315, Mehsana, Gujarat, India.

ABSTRACT
A simple, rapid, and highly selective RP-HPLC method was developed for the simultaneous determination of Azelnidipine (AZL) and Olmesartan (OLM) drug substances in the fixed dosage strength of 16 mg and 20 mg, respectively. Effective chromatographic separation was achieved using a Hypersil GOLD C18 column (150 mm × 4.6 mm internal diameter, 5 µm particle size) with a mobile phase composed of methanol, acetonitrile, and water in the ratio of 40:40:20 (by volume). The mobile phase was pumped using a gradient HPLC system at a flow rate of 0.5 mL/min, and quantification of the analytes was based on measuring their peak areas at 260 nm. The retention times for Azelnidipine and Olmesartan were about 8.56 and 3.04 min, respectively. The reliability and analytical performance of the proposed HPLC procedure were statistically validated with respect to system suitability, linearity, ranges, precision, accuracy, specificity, robustness, detection, and quantification limits. Calibration curves were linear in the ranges of 2-48 μg/mL for Azelnidipine and 2.5-60 μg/mL for Olmesartan with correlation coefficients >0.990. The proposed method proved to be selective and stability-indicating by the resolution of the two analytes from the forced degradation (hydrolysis, oxidation, and photolysis) products. The validated HPLC method was successfully applied to the analysis of AZL and OLM in their combined dosage form.

No MeSH data available.


Related in: MedlinePlus