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New Chemometrics Mode Based on Adjacent Data Points' Differences for the Simultaneous Determination of Clopidogrel, Atorvastatin, and Aspirin in their Combined Ternary Drug Formulation.

Nejem RM, Issa MM, Shanab AA, Stefan-Van Staden RI, Aboul-Enein HY - Sci Pharm (2014)

Bottom Line: The method has been successfully applied to the simultaneous determination of ternary mixtures of aspirin, clopidogrel bisulphate, and atorvastatin calcium.The analytical characteristics of the method were calculated.The results showed that the new method is simple, rapid, accurate, and precise.

View Article: PubMed Central - PubMed

Affiliation: Analytical Chemistry, Department of Chemistry, Alaqsa University, P.O.Box 4051, Gaza, Palestine.

ABSTRACT
A new method is proposed for the analysis of a ternary mixture composed of clopidogrel, atorvastatin, and aspirin without prior separation steps. The method combines the advantages of the mean centering of ratio spectra and derivative spectrophotometric methods. It is based on using the difference between adjacent data points in the absorbance spectra. The principal advantage of this method is the use of absorbance data, and not derivative data; hence the signal-to-noise ratio is not diminished. The mathematical explanation of the procedure is illustrated. Beer's law was valid in the concentration range 0.3-35 μg.mL(-1) for CLOP, 0.5-30 μg.mL(-1) for ATOR, and 1-40 μg.mL(-1) for ASP. Mean recoveries were obtained as 100.2, 100.1, and 100.2% for CLOP, ATOR, and ASP, respectively, in the prepared synthetic mixtures. The method has been successfully applied to the simultaneous determination of ternary mixtures of aspirin, clopidogrel bisulphate, and atorvastatin calcium. The analytical characteristics of the method were calculated. The results showed that the new method is simple, rapid, accurate, and precise.

No MeSH data available.


Related in: MedlinePlus

The second ratio spectra of different concentrations (2.5, 5, 7.5, and 10 μg.mL-1) of ATOR using the MCR method
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Figure 7: The second ratio spectra of different concentrations (2.5, 5, 7.5, and 10 μg.mL-1) of ATOR using the MCR method

Mentions: The mean centered values of the second ratio spectra at 242 (Fig 5), 301 Fig (6), and 283 nm (Fig 7) for CLOP, ASP, and ATOR, respectively, were measured and plotted against the corresponding concentrations of each drug to construct their calibration curves.


New Chemometrics Mode Based on Adjacent Data Points' Differences for the Simultaneous Determination of Clopidogrel, Atorvastatin, and Aspirin in their Combined Ternary Drug Formulation.

Nejem RM, Issa MM, Shanab AA, Stefan-Van Staden RI, Aboul-Enein HY - Sci Pharm (2014)

The second ratio spectra of different concentrations (2.5, 5, 7.5, and 10 μg.mL-1) of ATOR using the MCR method
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4318198&req=5

Figure 7: The second ratio spectra of different concentrations (2.5, 5, 7.5, and 10 μg.mL-1) of ATOR using the MCR method
Mentions: The mean centered values of the second ratio spectra at 242 (Fig 5), 301 Fig (6), and 283 nm (Fig 7) for CLOP, ASP, and ATOR, respectively, were measured and plotted against the corresponding concentrations of each drug to construct their calibration curves.

Bottom Line: The method has been successfully applied to the simultaneous determination of ternary mixtures of aspirin, clopidogrel bisulphate, and atorvastatin calcium.The analytical characteristics of the method were calculated.The results showed that the new method is simple, rapid, accurate, and precise.

View Article: PubMed Central - PubMed

Affiliation: Analytical Chemistry, Department of Chemistry, Alaqsa University, P.O.Box 4051, Gaza, Palestine.

ABSTRACT
A new method is proposed for the analysis of a ternary mixture composed of clopidogrel, atorvastatin, and aspirin without prior separation steps. The method combines the advantages of the mean centering of ratio spectra and derivative spectrophotometric methods. It is based on using the difference between adjacent data points in the absorbance spectra. The principal advantage of this method is the use of absorbance data, and not derivative data; hence the signal-to-noise ratio is not diminished. The mathematical explanation of the procedure is illustrated. Beer's law was valid in the concentration range 0.3-35 μg.mL(-1) for CLOP, 0.5-30 μg.mL(-1) for ATOR, and 1-40 μg.mL(-1) for ASP. Mean recoveries were obtained as 100.2, 100.1, and 100.2% for CLOP, ATOR, and ASP, respectively, in the prepared synthetic mixtures. The method has been successfully applied to the simultaneous determination of ternary mixtures of aspirin, clopidogrel bisulphate, and atorvastatin calcium. The analytical characteristics of the method were calculated. The results showed that the new method is simple, rapid, accurate, and precise.

No MeSH data available.


Related in: MedlinePlus