Atomic absorption spectroscopy (AAS) is an analytical technique that Below Figure 1 is a block diagram of the major components of an atomic absorption. ATOMIC ABSORPTION SPECTROSCOPY TARANPREET SINGH MS12044 Chem. or Computer Schematic diagram of Atomic absorption spectrometer LINE. the flame atomic absorption photometry shows the presence of Ca, Cd, Co, Cu, Fe, Mg, Mn, Pb and Fig. 2. Schematic...

We present the first high-resolution (R ≈ 31 000) spectra of the cool sdL 2MASS 0532+8246, and what was originally identified as an early-type L subd-warf (sdL) LSR 1610 – 0040. Our work, in combination with contemporaneous work by Cushing and Vacca, makes it clear that the latter object is more probably a mid-M dwarf with an unusual composition that gives it some sub-dwarf spectral features. W...

In the current paper,Nanostructured Nickel oxide (NiO) were synthesized by co-precipitation method using Nickel(II) Chloride Hexahydrate (NiCl2.6H2O) and sodium hydroxide (NaOH) as starting material. Structural, optical and magnetic properties of nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Atomic force microscope (AFM), UV–Vis absorption; Fo...

In this study, Co (III) salen complex was synthesized and immobilized onto the surface of Fe3O4@SiO2 magnetic nanoparticle. The heterogeneous nanocatalyst was characterized by different techniques including X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), nitrogen adsorption−desorption isotherm (BET), ...

background and objectives: heavy metals such as cadmium and lead are the most important toxins spreading through various ways like water, soil, and air in nature and easily enter human food chain. it is essential to determine the cumulative and harmful effects of these metals in nutrients, especially in cow milk because it is a unique source of food for all ages and it contains both essential a...

nanoporous anodic aluminum oxide (aao) has been used in many different fields of science and technology, due to its great structural characteristics. solar selective surface is an important application of this type porous material. this paper investigates the effect of nanoporous aao properties, including; film thickness, pore area percentage and pore diameter, on absorption spectra in the rang...

For a countable structure B, the spectrum is the set of Turing degrees of isomorphic copies of B. For complete elementary first order theory T , the spectrum is the set of Turing degrees of models of T . We answer a question from [1], showing that there is an atomic theory T whose spectrum does not match the spectrum of any structure.

The present study focused on the structural, morphological, optical and fluorescence properties of Ni0.5?xMg0.5CuxFe2O4 (x = 0.0, 0.1, 0.3 0.5) nanoparticles synthesized by using auto combustion technique. structural formation ferrite were confirmed FTIR spectroscopic study. From spectra nanoparticles, metal ions are situated in two different sub lattices i.e. tetrahedral (A-site) octahedral (B...