نتایج جستجو برای: nickel determination

تعداد نتایج: 284032  

Journal: :The Journal of the Japan Institute of Metals.B 1950

Journal: :Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements 2012
Dirk Schaumlöffel

This review gives an overview on the analysis of inorganic nickel species and their toxic effects. Based on the analytical procedure applied inorganic nickel species are usually classified in soluble, sulfidic, metallic and oxidic nickel fractions. Only few works were attempting a chemical characterization of the different nickel compounds in each fraction. This general classification in four n...

Journal: :International Journal of Engineering & Technology 2018

Journal: :Annals of clinical and laboratory science 1981
O B Christensen V Lagesson

Nickel concentration in serum and whole blood as well as nickel excretion in urine was assayed at different time intervals before and after ingestion of nickel sulfate in eight healthy volunteers during a three days study. The peak level of nickel in blood was reached 2.5 hours after nickel ingestion and the maximal urinary excretion of nickel was during the first eight hours after ingestion. G...

Journal: :Journal of oral rehabilitation 1998
D L Edwards J C Wataha C T Hanks

The use of nickel-containing alloys in dentistry has been questioned because of the biological liabilities of nickel and the release of nickel ions from dental appliances into the oral cavity. The uptake of nickel by cells in the oral tissues is a critical factor in assessing the biological liabilities of nickel. Nickel uptake by macrophages may be particularly important because of the central ...

2002
Leonardo S. G. Teixeira Antonio C. S. Costa Salvador Garrigues Miguel de la Guardia

Solid phase spectrophotometry (SPS) provides effective methods to combine metal ion preconcentration and their spectrophotometric determination, by integrating the formation of colored complexes and their fixation on the surface of a solid support placed inside the measurement cell. The coupling between flow injection analysis (FIA) and SPS (FI-SPS) makes it unnecessary to reach equilibrium con...

2016
GACHUA HAM

Heavy metals are considered as the most important pollutants of the aquatic environment. In the present study, acute toxicity test was used for the determination of lethal toxicity of Nickel in adult fish, Channa gachua as the test organism. Toxicity test is most reliable for accessing the adverse effect of pollutants on aquatic life. The LC50 values were determined and observed that the values...

2008
Emma Peachey Ruth Hearn Selvarani Elahi

Determination of 11 metals (including arsenic, chromium, mercury, iron, copper, nickel, zinc, selenium, lead, cadmium, and thallium) in UK-consumed dietary supplements was carried out using ICP-MS. The instrument used was the Agilent 7500ce, which is equipped with a collision/ reaction cell (Octopole Reaction System), and was operated in no-gas, helium, and hydrogen modes, all acquired within a...

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