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A new and modern wet chemical method (spectrophotometric) has been developed to determination of selenium by reduction of selenium (IV) and selenium(VI) using iron(II) as a reducing agent in acid medium(phosphorichydrochloric acid) at room temperature. The method is capable of determination of selenium from the unknown sample, and the binary mixture analysis also carried out the analyte selenium (IV) and selenium (VI) by the reductant of iron(II). This new spectrophotometric method has not use any different temperature and the reaction carried without using any surfactants. The metal ion in aqueous forms light red colored complex with iron(II), in phosphoric –hydrochloric acid medium showing the maximum absorbance ranging from 395-450nm. Hence, analytical studies were further carried out in between 390nm – 450nm stability of the complex carried out by using absorption spectra, in this reaction absorption spectra play an important role and it give a beauty to the

international journal of engineering research and technology

New Spectrophotometric Determination of Sodium Selenate [Selenium (IV)] and Sodium Selenite[Selenium(VI)] with Iron(II), and Their Quantitative Analysis of Selenium (IV) - Selenium (VI) Present in A Binary Mixtures