In this study, different derivative spectrophotometric methods are proposed for the simultaneous determination of chlorpheniramine maleate (CP), phenylephrine HCl (PE) and phenylpropanolamine HCl (PP) in their ternary mixtures and in pharmaceutical dosage forms. Spectra of single component and ternary mixtures of various concentrations and combinations from zero- to fourth-derivation were obtai...

Mexidol (3-hydroxy-6-methyl-2-ethylpyridine succinate) is a drug that exhibits neuroprotective, antihypoxic, anti-ischemic, nootropic, anti-stress and geroprotective effects can suppress or slow down oxidation reactions. Оbjective: to develop selective simple method for assessing the content of mexidol in tablets. Materials methods. The objects study were tablets 0.125 g. Derivative spectrophot...

The Derivative Spectrophotometry usually improves resolution bands, eliminates the influence of background and provides more defined fingerprints than original spectra, hence enhancing the detectability of minor spectral features. In this work, different madder types were collected and applied for dyeing woolen yarns used in Persian carpet in conventional pre-mordanting and dyeing process with ...

Platinum and ruthenium can be simultaneously extracted from hydrochloric acid solution by high molecular weight amines (trioctylamine (TOA) or diantipyrylmethane (DAM) in 1,2-dichloroethane) after preliminary conversion into the complexes with SnCl3 ligands. The determination of both metals in the presence of each other in organic solutions of the formed ion-pairs can be accomplished by applyin...