Limestone and red clay are widely used in construction as primary raw materials since they readily available economically viable. The present work has been carried out primarily to explore the fresh reserves of acceptable Makawanpur district for producing cement. Four limestone four samples were collected from different locations Makwanpur district. analyzed using chemical (titrimetric gravimet...

Abstract The complete characteristics knowledge of clay minerals is necessary in the evaluation studies hydrocarbon reservoirs. Ten samples taken from two wells a heterogeneous clastic gas reservoir formation NE Iran were selected to conduct transmission Fourier transform infrared spectroscopy (FTIR) tests for mineralogy studies. FTIR analysis showed that there clear signs all samples. wavenumb...

X-ray fluorescence analysis was applied to assess the ecological state of area potentially polluted by emissions aluminum industry and heat power engineering. Soil pine needle samples were collected in areas with industrial activity analyzed using wavelength-dispersive (WDXRF) total-reflection (TXRF) techniques. Both techniques validated matrix-matched certified reference materials. Different s...

Wavelength-dispersive X-ray fluorescence analysis (WDXRF) and total-reflection (TXRF) were applied to study the elemental composition of Late Neolithic ancient ceramics collected at Popovsky Lug burial site (Kachug, Upper Lena river, Russia). Semi-quantitative non-destructive ceramic pieces showed that measurements upper lower sides are less informative than measurement its cut. Various sample ...

We propose here a deep multilayer grating with adjustable bandpass as an alternative dispersing element to PET crystal in WDXRF spectroscopy. When making a multilayer grating, we remove part of the reflecting planes of a multilayer, allowing radiation to penetrate deeper. Since the resolution, or the bandpass, is reciprocally proportional to the penetration depth, we improve the resolution and ...

New Mg2Si-based multilayer structures were proposed for XRF analysis of the light elements from magnesium to nitrogen. These structures contain two, three or more different layer materials in a single period. The additional third, fourth, etc, layer was introduced for improving performance as well as for application dependent performance flexibility. Three-layer W/SiC/Mg2Si and two layer Co/Mg2...

Heterostructures based on ZnO-TiO₂/delaminated montmorillonite coated with Ag have been prepared by sol-gel and photoreduction procedures, varying the Ag and ZnO contents. They have been thoroughly characterized by XRD, WDXRF, UV-Vis, and XPS spectroscopies, and N₂ adsorption, SEM, and TEM. In all cases, the montmorillonite was effectively delaminated with the formation of TiO₂ anatase particle...