A new, sensitive, simple, inexpensive and fast kinetic spectrophotometric method was developed for the determination of trace amounts of morphine over the range of 12-60ng/mL. The method is based on the catalytic effect of morphine on the reaction of bromate and methylene bluein acidic media is reported. The reaction was monitored spectrophotometrically by 60 ng/ml measuring the decrease in abs...

A potentiometric titration method for the determination of minoxidil based on its redox reaction with K2Cr2O7 is described. The best results were observed using 1.00 x 10-3 mol L-1 K2Cr2O7 and 1.00 x 10-2 mol L-1 minoxidil solutions, and the minoxidil as titrant in 2.00 mol L-1 H2SO4 medium. The method was applied to commercial samples and compared with the results from a chromatographic proced...

Two simple titrimetric methods have been developed for the determination of hydroxyzine dihydrochloride (HDH) in pure form and in tablets. The principle of the methods are simple acid-base reactions in which the hydrochloride content of the drug was determined by titrating with an aqueous standardized NaOH solution either visually using phenolphthalein as indicator (method A) or potentiometrica...

Variation of bio molecules (amino acids) between biological sample (Oryza sativa powder, Phyllanthus emblica powder and Citrus limonium powder) and pharmaceutical sample (Retinol, Cyanocobalamin and Ascorbic acid) has been studied using FTIR spectroscopy. Spectroscopic analyses of biological and pharmaceutical samples are discussed. It has been found that the variation of bio molecules with the...

A simple and low-cost electrochemical sensor based on poly(phenylalanine) function­nalized multi-walled carbon nanotubes (F-MWCNTs) modified glassy electrode (GCE) was developed for the determination of vitamin B6 (VB6). The surface morphology electrodes investigated with scanning electron microscopy (SEM) Fourier transform infrared spectroscopy (FTIR). electrocatalytic activities bare were in ...