In inductively coupled plasma optical emission spectrometry (ICP-OES), the presence of carbon in matrix strongly affects (positively and negatively) signal atomic lines. However, ionic lines is mostly unaffected by this concomitant. The goal work to gain insight into origin effects on ICP-OES. To end, a total 3608 (i.e., 1755 1853 lines) 62 elements (Ag, Al, As, Au, B, Ba, Be, Ca, Cd, Ce, Co, C...

In this study, colloidal germanium nanocrystals were synthesized by a simple and novel method, and their optical properties were also studied. Polyvinyl alcohol (PVA) as a surface modifier was used to control the optical properties of colloidal Ge nanocrystals. Fourier transform infrared spectroscopy (FTIR) analysis was performed to identify the various functional groups present in the sample. ...

Abstract Origins of medieval lead artefacts are hard to establish due re-smelting and mixing. One can obtain conclusive evidence from ingots that served for bulk trade originated directly the mines. This paper aims analyse thirteenth century ingot Wroc?aw (Poland). To its origins we analysed structure chemical composition. We used archaeometric methods: light electron microscopic observations, ...

Abstract A hybrid system was designed and synthesized through reacting modified halloysite (Hal-Cl) with Schiff base (DAB-PC) applied as catalytic support for anchoring Pd NPs to afford Pd@Hal-DAB-PC catalyst. The resultant material well identified by various analyses including Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction patterns (XRD), thermogravimetric analysis (TGA), f...

Hot electrons and optical emission are measured from the rear surface of a metallic foil. The spectra of the optical emission in the near infrared region have a sharp spike around the wavelength of the incident laser pulse. The optical emission is ascribed to coherent transition radiation due to microbunching in the hot electron beam. It is found that the optical emission closely correlates wit...

The development of new active optical fibre devices requires materials with « augmented » intrinsic properties, though using luminescent ion (LI) –doped silica as host glass. Optical fibers containing Dielectric Nanoparticles (DNP) grown by phase separation are proposed. DNP would optimally fully encapsulate LI to produce « engineered » spectroscopic properties. To determine the composition of ...