Abstract The work is devoted to the development of methods for determining elemental and isotopic composition spent ion-exchange resin, industrial waste environmental objects using an inductively coupled plasma mass spectrometer analyzing specific samples determine content noble rare metals in technological materials, natural with application developed techniques. This article determines resin ...

An anion exchange procedure has been optimized for the analysis of platinum group elements (PGEs) in geological samples at low abundances by adding two stages: chlorination and replicate sorption onto a small anion exchange column. Combined with neutron activation analysis (NAA) and ultrasonic nebulization inductively coupled plasma mass spectrometry (USN-ICP-MS) determination, this procedure i...

In a study funded by the U.S. Department of Energy (DOE) National Technology Laboratory (NETL), University North Dakota (UND) and Environmental Research Center (EERC) performed first-of-its-kind round-robin interlaboratory (RRIS) to determine lab-to-lab method-to-method variability in analyzing rare earth element (REE) content domestic resources. Analyses REEs on eleven different materials were...

In recent years substantial progress has been achieved in the field of Prompt Gamma-ray Activation Analysis (PGAA). The PGAA application also incorporates the use of short-lived activation analysis products. Recently, new precise k0 measurements for PGAA were performed at the Budapest Reactor. As part of an IAEA CRP, these data were combined with data from the Evaluated Nuclear Structure Data F...

background: in addition to gas pollutants, many chemicals and air pollutants are in the form of particulate matter. particulate matter consists of a complex mixture of variable sized particles and physicochemical composition. these particles mainly contain minerals including fe, al, ca, k, cu, ti, mn, ni, v and their size, chemical composition and concentration are important to assess the exten...

CONTENT NEUTRON ACTIVATION ANALYSIS

Measurement of natural radionuclides concentration in Samosir area of Sumatera island of Indonesia aims to obtain basis data of the content of radionuclides that could be tended in the development of the area. This research was conducted using Neutron Activation Analysis (NAA), which consists of a sampling of soil of Samosir Island as the residential area and the soil surrounding of Pangururan ...

A current challenge in the field of magnetoelectric multiferroics is to identify systems that allow a controlled tuning of states displaying distinct magnetoelectric responses. Here we show that the multiferroic ground state of the archetypal multiferroic TbMnO3 is dramatically modified by epitaxial strain. Neutron diffraction reveals that in highly strained films the magnetic order changes fro...

Based on a study of high-energy epithermal (HEE) neutrons in data from the Lunar Exploration Neutron Detector (LEND) on NASA's Lunar Reconnaissance Orbiter (LRO), the background from HEE neutrons is larger than initially estimated. Claims by Mitrofanov et al. (Reports, 22 October 2010, p. 483) of enhanced hydrogen abundance in sunlit portions of the lunar south pole and quantitative hydrogen co...

In this work a determination of selected elements in the infant formulas commercially available on the Polish market was done. 14 different materials (milk-based formulas and grain porridges) were analyzed. Both, inductively coupled plasma mass spectrometry (ICP-MS) and instrumental neutron activation analysis (INAA) were applied for the determination of As, Cr, Fe and Se, which are recognized ...