In this study, we investigated the degradation of amido black dye in an aqueous solution using ultra-violet (UV) light catalyzed by iron oxide nanoparticles (nano-Fe). The nano-Fe was synthesized sodium borohydride reduction ferric chloride and characterized scanning electron microscopy (SEM), X-ray diffraction (XRD), fluorescence spectrophotometry (XRF). SEM showed regular spherical particles,...

In this work; Cyclic-Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) were used to study the electrodeposition kinetic of selenium films in potentiostatic mode from aqueous solution containing dioxide sodium citrate at pH = 4.2. Semiconducting proprieties obtained deposits investigated by Mott-Schottky measurements whereas optical ones performed UV–Visible spectrophotometry. Th...

THE INITIAL STUDIES BY WILLIS (2, 3) and the more recent work of Zettner and Seligson (i) and others (4-7, 9-11) have proven the utility of atomic absorption spectrophotometry (AAS) in the clinical laboratory. However, until very recently there has been very little if any published information dealing with normal serum calcium values by atomic absorption spectrophotometry (11). The primary purp...

The direct chelation-extraction method, originally developed by Hessel (1968) for blood lead analysis, has been successfully applied to urinalysis for manganese. The analyses of 35 urine samples containing up to 100 microgram/1 of manganese from manganese-exposed workers showed that the data obtained by this method agree well with those by wet digestion-flame atomic absorption spectrophotometry...

The article considered the ability to grow mint mentha piperita and Agstache rugosa in laboratory conditions. extraction of essential oil from Mint Agastache its chemical composition were determined. amount was studied using spectrophotometer NMR spectroscopy methods. has been relatively. quality, composition, physical parameters oils studied, their differences study relative obtained by spectr...

We present low resolution spectrophotometric and imaging ISO observations of a sample of 58 AGN's over the 2.5-11.6 Jl range. The data strongly support unification schemes and set new constraints on models of the molecular torus.

A new synthetic medium having negligible ultraviolet absorbance is described for growing staphylococci in experiments requiring ultraviolet spectrophotometry of cell-free portions of the culture.