International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565

International Journal of Chemical Studies

Vol. 1, Issue 2 (2013)
Two new Spectrophotometric Approaches to the Simultaneous Determination of Ezetimibe and Atorvastatin Calcium


Zero Order Absorption Spectra of 20 µg/mL Ezetimibe and 20 µg/mL Atorvastatin Calcium using Methanol as a Blank
Fig. 1: Zero Order Absorption Spectra of 20 µg/mL Ezetimibe and 20 µg/mL Atorvastatin Calcium using Methanol as a Blank


Linearity of the Absorbance At 232.6 nm and 251.0 nm of the Zero Order Spectra to the Corresponding Ezetimibe Concentration (5 – 30 ug/mL)
Fig. 2: Linearity of the Absorbance At 232.6 nm and 251.0 nm of the Zero Order Spectra to the Corresponding Ezetimibe Concentration (5 – 30 ug/mL)


Linearity of the Absorbance At 232.6 nm and 251.0 nm of the Zero Order Spectra to the Corresponding atorvastatin calcium concentration (10 – 35 ug/mL)
Fig. 3: Linearity of the Absorbance At 232.6 nm and 251.0 nm of the Zero Order Spectra to the Corresponding atorvastatin calcium concentration (10 – 35 ug/mL)


Zero Order Absorption Spectra of Ezetimibe 5 - 30 µg/mL using Methanol as a Blank
Fig. 4: Zero Order Absorption Spectra of Ezetimibe 5 - 30 µg/mL using Methanol as a Blank


Absorption Spectra of a (1:1) Mixture Contains 20 µg/mL of Ezetimibe and Atorvastatin Calcium, Mixture after Aivision by the Divisor, Mixture after Subtraction of the Constant and Mixture after Multiplication by the Divisor, using Methanol as a Blank
Fig. 5: Absorption Spectra of a (1:1) Mixture Contains 20 µg/mL of Ezetimibe and Atorvastatin Calcium, Mixture after Aivision by the Divisor, Mixture after Subtraction of the Constant and Mixture after Multiplication by the Divisor, using Methanol as a Blank


Second Derivative Absorption Spectra of 20 µg/mL Ezetimibe and 20 µg/mL Atorvastatin Calcium using Methanol as a Blank
Fig. 6: Second Derivative Absorption Spectra of 20 µg/mL Ezetimibe and 20 µg/mL Atorvastatin Calcium using Methanol as a Blank


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International Journal of Chemical Studies