نتایج جستجو برای: oes
تعداد نتایج: 2063 فیلتر نتایج به سال:
A novel ICP-OES method has been developed for the determination of Si concentration, originating from polyorganophosphosilanes, in biological specimens that also contain metal ions. The is free hazardous hydrofluoric acid (HF) and involves digestion with HNO3/H2O2 prior to analysis by ICP-OES. High reproducible spike recovery was obtained controls.
Particle beam/hollow cathode-optical emission spectroscopy (PB/HC-OES) is presented as a tool for the determination of metal ion loading in transferrin (Tf). The elemental specificity of optical emission spectroscopy provides a means of assessing metal ion concentrations as well as the relative amounts of metal per unit protein concentration (up to 2 moles of Fe per mole of protein). The PB/HC-...
CuInSe2 nanoparticles have been prepared by reacting cuprous chloride, indium chloride with alcohol and selenium powder. The nanoparticles were characterized by TEM, XRD, ICP-OES and SEM. The formation of CuInSe2 nanoparticles with different precursor ratios was investigated by in-situ high temperature X-ray diffraction analysis. It was found that the growth of CIS followed a vapor-liquid-solid...
The theorem of equivalence between the Kirchhoff aperture integration (AI) and the physical-optics (PO) approach applied to the interior walls of a open-ended waveguide [1] is generalized in this letter to the case of any open-ended structure (OES).
Organizational environmental scanning (OES) and organizational information interpretation (OII) are two critical organizational information processing (OIP) activities, whose importance is only intensified with globalization, intense competition and dynamic environments. This paper proposes a theoretical model in which environmental uncertainty reduction and organizational equivocal resolution ...
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 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...
The aim of the study was to compare the two reference methods for the determination of boron in water samples and further assess the impact of the method of preparation of samples for analysis on the results obtained. Samples were collected during different desalination processes, ultrafiltration and the double reverse osmosis system, connected in series. From each point, samples were prepared ...
Abstract The large-scale adoption of occupational exoskeletons (OEs) will only happen if clear evidence effectiveness the devices is available. Performing product-specific field validation studies would allow stakeholders and decision-makers (e.g., employers, ergonomists, health, safety departments) to assess OEs’ in their specific work contexts with experienced workers, who could further provi...
OBJECTIVES To examine and contrast the ability of patient-reported and clinician-rated measures, reflecting different levels of specificity, to detect differences in outcomes between patients with and without rheumatoid arthritis (RA), at 6 months following elbow surgery. METHODS One hundred and four consecutive patients/elbows self-completed the Oxford Elbow Score (OES), Disabilities of the ...
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