QUANTITATION OF LAMIVUDINE BY UV SPECTROPHOTOMETRY

Basic UV/Visible Spectrophotometry

The Quantitation of Mixtures of Hemoglobin Derivatives by Photoelectric Spectrophotometry

scars, metabolic disturbances, psychological care, and spinal cord regeneration. The bibliography is generous and well selected. The book is warmly dedicated to Professor John F. Fulton under whose direction the author conducted an interesting research project at Yale University School of Medicine during the year 1946-1947. The collaboration of the author's wife, who executed most of the excell...

Validated Determination of Meloxicam in Tablets by Using UV Spectrophotometry

Meloxicam (MEL) (4-hydroxy-2-methyl-N-(5-methyl-2-thiazoly)-2H1,2-benzo-thiazine-3-carboxamide-1,1dioxide) (C14H13N3O4S2) (Figure 1) is a non-steroidal anti-inflammatory drug (NSAID) 1,2. MEL is a novel NSAIDs with a favorable COX-2 (cyclooxgenase-2): COX-1 (cyclooxgenase-1) selectivity has also been shown to have potent anti-inflammatory effects 3,4. Because of very low solubility of MEL in ac...

UV-Visible spectrophotometry of Repaglinide in bulk and in formulation by using methyl orange as reagents

Two sensitive spectrophotometric methods are presented for the assay of Repaglinide in bulkdrug and in formulations using methyl orange, as reagents. Oxidant by reacting with a fixedamount of either methyl orange and measuring the absorbance at 485.2 nm (method-I) andmeasuring the absorbance at 618.9 nm (method-II). Developed method is based on the formationof extractable colored complex of dru...

Simultaneous Quantitation of Theophylline and Guaifenesin in Syrup by HPLC, Derivative and Derivative Ratio Spectrophotometry for Quality Control Purposes

The aim of the present work was to develop a simple and rapid method for determination of theophylline (THP) and guaifenesin (GU) in syrup without involving any preparation operations like separation or masking. A HPLC and two spectrophotometric methods based on the derivation of the main spectra are described for the determination of THP and GU in combined pharmaceutical syrup form. The first ...