Determination of amlodipine and atorvastatin mixture by different spectrophotometric methods with or without regression equations
| Autor: | A. Hemdan, N.V. Fares, Ragaa Magdy, Maha Farouk |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Atorvastatin
02 engineering and technology 010402 general chemistry 01 natural sciences Dosage form Analytical Chemistry Absorbance Limit of Detection medicine Amlodipine Instrumentation Spectroscopy Analysis of Variance Chromatography Chemistry Reproducibility of Results 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Regression 0104 chemical sciences Drug Combinations Calibration Regression Analysis Spectrophotometry Ultraviolet Powders 0210 nano-technology medicine.drug |
| Zdroj: | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 210 |
| ISSN: | 1873-3557 |
| Popis: | Four new, simple, and reproducible spectrophotometric methods were developed and validated for the simultaneous determination of Amlodipine (AML) and Atorvastatin (AT) in bulk powder and pharmaceutical dosage form. The four methods include two progressive and two successive resolution techniques. The two progressive methods are Absorbance Subtraction (AS) and Amplitude Modulation (AM), while the two successive methods are Constant Value (CV) and Concentration Value. In the Concentration Value method, the concentration of the drugs is determined from the graphical representation without the use of regression equations. Linearity range for the two progressive methods was from 5 μg/mL–35 μg/mL while for the two successive methods was from 5 μg/mL–55 μg/mL. The four methods were validated according to the ICH guidelines and were found to be accurate, precise, and selective. The methods were also applied for determination of the mixture in the marketed pharmaceutical dosage form. Results obtained were compared with reported methods. Also, One-way ANOVA statistical test was done between all the proposed spectrophotometric methods where no significant differences were found. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect