نتایج جستجو برای: icp oes
تعداد نتایج: 11777 فیلتر نتایج به سال:
The determination of trace rare-earth elements (REEs) can be used for the assessment of environmental pollution, and is of great significance to the study of toxicity and toxicology in animals and plants. N, N, N', N'-tetraoctyl diglycolamide (TODGA) is an environmental friendly extractant that is highly selective to REEs. In this study, an analytical method was developed for the simultaneous d...
Disadvantages of flame AA are that releasing agents or modifiers are necessary and careful control of the flame stoichiometry is important to overcome chemical interferences [1]. While the atomic absorption technique offers adequate performance, in most cases it is a single element technique and is therefore slow. Analysis of Blood Serum on the Liberty Series II ICP OES with the AxiallyViewed P...
The paper presents possibilities and difficulties in nondestructive analysis of small multielement single crystals performed by means of X-ray spectrometry techniques: micro-X-ray fluorescence spectrometry (μ-XRF), energy-dispersive electron probe microanalysis (ED-EPMA), and X-ray photoelectron spectroscopy (XPS). The capability of the X-ray spectroscopy techniques in elemental analysis is dem...
Neutron activation analysis with an internal standard correction was applied to the determination of Cr and Co in a ceramics certified reference material (NMIJ CRM 8004-a silicon nitride powder). Cesium was used as an internal standard to compensate for any inhomogeneity of the neutron flux through an irradiation capsule and to improve the repeatability of gamma-ray measurements. It was found t...
ICP-OES and LA-ICP-MS instruments routinely used to assess the geochemical properties of various natural synthetic materials. In this contribution, analytical routines method development procedures facilities installed at İstanbul University-Cerrahpaşa Geological Engineering Department, Geochronology Geochemistry Laboratory have been evaluated using well-known international rock standards. Samp...
Abstract Currently, the quantitative analysis methods for uranium that are widely used in laboratories, such as volumetric method and inductively coupled plasma mass spectrometry (ICP-MS) cannot achieve low cost, simple operation, little influence by other elements. The optical emission spectrometer (ICP-OES) has a wide linear range, high stability, can be to identify multiple elements simultan...
Copper (Cu) is a toxic pollutant and its presence in wastewater, even at low concentrations, can have significant environmental impact. In this work, method for the determination of Cu was developed using voltammetric technique involving platinum electrode citrate medium. ppb level determined by both chronoamperometry (CA) anodic linear scanning voltammetry (ALSV), results were compared to thos...
در پژوهش حاضر سعی شده است تا به وسیله ی مطالعات آزمایشگاهی بستر و محیط دفن احتمالی پنج نمونه سفال خاکستری عصر آهن متعلق به موزه ی ایران باستان مورد شناسایی قرار گیرد. به همین منظور با شناسایی و اندازه گیری میزان عناصر موجود در رسوبات و بدنه ی سفالی نمونه ها با استفاده از دستگاه طیف سنج نشری پلاسمای جفت شده ی القایی (icp-oes) سعی در شناخت بستر احتمالی آن ها شد. همچنین برای شناسایی آنیون های موجو...
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