نتایج جستجو برای: oes instrument perkinelmer

تعداد نتایج: 86380  

Journal: :Micro 2023

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.

Journal: :Metallomics : integrated biometal science 2010
C Derrick Quarles Julia L Brumaghim R Kenneth Marcus

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-...

2014
Kristine O. Vasquez Jeffrey D. Peterson

Drug induced liver injury (DILI) is a major reason for late stage termination of drug discovery research projects, highlighting the importance of early integration of liver safety assessment in the drug development process. A technical approach for in vivo toxicology determination was developed using Acetaminophen (APAP), a commonly used over-the-counter analgesic and antipyretic drug, to induc...

2009
Umme Farva Rangarajan Krishnan Andrew Payzant Jun Young Park Tim Anderson Chinho Park

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...

Journal: :Agronomy 2022

The study monitored the effect of differentiated mineral nutrition microgreens species by solution sodium selenate (2 mg Se/L) on content Se, chlorophylls, and other minerals. Chlorophylls were measured spectrophotometrically, Se electrothermal atomic absorption method (ETAAS) with Zeeman-effect background elements’ concentration was performed a dual Inductively coupled plasma emission spectros...

2001
Juan M. Rius Krzysztof A. Michalski

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).

2003
Weijun Zheng Robert W. Zmud

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 ...

2015
Andrew Ryan

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...

2010
Thomas Roberts Helen Curtis

The 5 annual international RNAi conference at Oxford, RNAi2010: Gene Regulation by Small RNAs, was held at St Hilda’s College, Oxford, UK (17-18 March). The meeting brought together experts from industry and academia and served as a forum to discuss new technological developments and interesting findings in the RNAi field. Research posters were displayed throughout the conference. Key sponsors ...

2017
FuKai Li AiJun Gong LiNa Qiu WeiWei Zhang JingRui Li Yu Liu YuNing Liu HuiTing Yuan

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...

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