nickel concentration method

Blood Nickel Concentrations in Patients with Stainless
this suggestion nickel concentrations were determined in serum and whole blood specimens from 13 patients with stainless steel hip prostheses Methods Blood specimens were collected with polyethylene intravascular cannulas polypropylene syringes and polyethyl ene test tubes with stringent precau tions to avoid nickel contamination 8 28 42
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Nickel II Chloride concentration on the germination rate
2021 7 13 Independent variable Nickel Ni ion concentration ppm ± 0 01ppm Solutions of 0 30 60 90 120 mg/L were used Hydrous nickel II chloride was used as this is the most common soluble form of nickel These values were chosen in accordance with the nickel ion concentration found in
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Test Method Method 433 Determination of Total Nickel
2020 12 30 Concentration is the concentration reported from analysis the range minimum is the detection limit September 1989 CARB Method 433 Page 1 2 2 Other Methods Test Method Method 433 Determination of Total Nickel Emissions from Stationary Sources
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Morphology control of nickel nanoparticles prepared in
2020 7 16 The surface area of undoped aerogel is found to increase with the concentration of ammonium bicarbonate salts from 360 to 530 m 2 g −1 and that of nickel
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Nickel Human Health and Environmental Toxicology
2020 1 21 1 Introduction Nickel is a hard ductile silvery white transition metal it is the 28th element in the periodic table It may exist in several oxidative states from −1 to 4 nevertheless the 2 oxidation state Ni 2 is the most widespread in the environment and biological systems Nickel belongs to the ferromagnetic elements and it is naturally present in the Earth crust usually
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Chapter 6 10 Nickel
2013 10 10 The highest concentration of nickel was found in the smallest particles emitted from a coal fired plant 20 Particles with an MMD of 0 65–1 1 µm contained nickel at a concentration of 1600 mg/kg while particles of 4 7–11 µm contained 400 mg/kg Nickel containing particles released from oil combustion California urban area are in the
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Nickel
2 Use the test procedure to measure the concentration of the sample then keep the unspiked sample in the instrument 3 Go to the Standard Additions option in the instrument menu 4 Select the values for standard concentration sample volume and spike volumes 4 Nickel PAN Method 1 000 mg/L
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Simultaneous Determination of Cobalt II and Nickel II
2019 7 31 spectrophotometry method for simultaneous determination of nickel and cobalt The method is based on the formation of the complexes of Ni II and Co II with Alizarin Red S in Triton X 100 micellar media Experimental Apparatus UV visible absorbance spectra were recorded on a Shimadzu UV 1800 scanning spectrophotometer
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Free nickel ion concentration in sewage by an ion
2021 3 12 Determination of Free Calcium and Magnesium Concentrations in Urine Samples by an Ion Exchange Inductively Coupled Plasma Atomic Emission Spectroscopy Method International Journal of Environmental Analytical Chemistry 1995 60 2 4 303 312
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Journal of Analytical Methods in Chemistry
Anthropogenic presence of nickel in the soil results in an increase of the Ni concentration in foods and in water further reducing the foodstuffs suitable for the SNAS patients For these reasons a great deal of attention has been paid to developing methods for removing nickel ion from water foods juices and vegetable extracts 8–10
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Determination of Zinc and Nickel Concentration by 1 Ion
The expected concentration of nickel in the unknown was 0 00125 M The concentration was determined to be 0 00068 M and 0 00153 M through EDTA titration and AAS respectively The percent errors for the values were 45 6 and 69 6 correspondingly The expected concentration of zinc in
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Determination of Nickel II by Spectrophotometry in
2019 2 15 agent for further studies The effect of concentration of Triton X 100 on sensitivity of the method was studied by varying it s percent concentration from 0 5 3 0 w/v and its volume from 0 5 3 5 mL The maximum absorbance was found with 1 5 2 0 mL of 1 Triton X 100 Hence 2 0 mL of 1 Triton X 100 was used for further studies
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Nickel in Drinking water
Nickel concentrations in groundwater depend on the soil use pH and depth of sampling The average concentration in groundwater in the Netherlands ranges from 7 9 µg/litre urban areas to 16 6 µg/litre rural areas Acid rain increases the mobility of nickel in the soil and thus might increase nickel concentrations in groundwater IPCS 1991
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ABRAMOVIC METHOD
The Abramovic Method developed over decades of research on performance and immaterial art Created by Marina Abramovic the Method is an exploration of being present in both time and space It incorporates exercises that focus on breath motion stillness and concentration The audience plays a central role in this section of the exhibition
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An Approach to Determining Nickel Vanadium and other
2019 10 21 oxidation and acid digestion coupled with ICP MS analysis provides an accurate method for determining the concentration of metals in crude oil Nickel and vanadium concentrations were measured in certified Ni and V oil standards and in various light intermediate and heavy crude oils after application of a single vessel ashing chemical
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Spectroscopic in Inorganic Chemistry
2014 2 21 The application of Job s Method is limited to situations where one stage predominates In the method the total molar concentration of nickel II plus ligand is kept constant and the ratio varied from zero to infinity Initially in a solution containing no nickel II ion ratio =
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How to measure the nickel ion concentration in solution
2020 11 16 If your nickel concentration is good enough than go for the Ni DMG 2 method If concentration is low than you can try with ICP also In AAS you
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Blood Nickel Concentrations in Patients with Stainless
this suggestion nickel concentrations were determined in serum and whole blood specimens from 13 patients with stainless steel hip prostheses Methods Blood specimens were collected with polyethylene intravascular cannulas polypropylene syringes and polyethyl ene test tubes with stringent precau tions to avoid nickel contamination 8 28 42
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Gravimetric Estimation of Nickel Theory Inorganic
2021 7 27 To precipitate nickel from the solution by adding dimethyl glyoxime Filtration of precipitate using sintered glass crucible Mass of nickel calculated from the mass of precipitate Theory Gravimetric analysis is one of the most accurate analytical methods available It is concerned with the determination of a substance by the process of weighing
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Chapter The Fundamental Aspects Of Electroless Nickel
2012 2 1 hypophosphite concentration over a very wide concentration range Gutzeit further showed the rate to be independent of the nickel ion concentration beyond about 0 02M Ni the rate is said to have a zero order dependence on nickel concentration In alkaline solution the rate is dependent only on the hypophosphite concentration
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Assessment of Heavy Metal Concentrations in the United
2006 3 25 Nickel concentrations at some urban sites exceeded target levels well into the 1990 s The annual mean concentrations at sampling sites in rural locations in 2003 were 0 18 ng m 3 0 66 ng m 3 1 65 ng m 3 and 7 58 ng m 3 for cadmium arsenic nickel and lead respectively The relatively ranking in concentration is the same as the relative
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INFLUENCE OF NICKEL DOPING CONCENTRATION ON
2021 9 18 FE SEM image showed that nickel doping concentration affected the nanostructure morphology The absorbance spectra were then recorded at wavelengths ranging from 350 nm to 1000 nm where the CuS nanostructures have strong absorbance in the NIR The optical band gap energy of the samples increased as nickel concentration increasing
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A PRACTICAL GUIDE TO THE USE OF NICKEL
FIG 4 Corrosion of nickel and MONEL alloy 400 in hydrochloric acid solutions at 30 C 86 F It will be noted from Figure 4 that the corrosion rates of MONEL alloy 400 and nickel at room temperature are approximately the same up to 10 per cent acid concentration In this concentration range the corrosion rates of both materials in
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Nickel Electroplating
2011 9 29 This concentration is generally adequate but as current density requirements increase the increased depletion rate should be offset by an increase in nickel ion concentration The total nickel ion concentration is a significant factor in the limiting current density or the point at which nodular or burned deposits become evident
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The optimization of methods of synthesis of nickel–silver
2018 10 25 Whereas with further increasing of the concentration of the reducing agent from 0 015 to 0 1 M the size of Ni NPs only slightly decreased The concentration 0 0025 M deficiency of NaBH 4 was too low to initiate the reduction process therefore the method of synthesis of Ni NPs was modified by applying Ni–ammonia complex as the precursor
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Nickel smelting producing Metalpedia
Nickel smelting Extraction and purification Nickel is recovered through extractive metallurgy it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75 purity In many stainless steel applications 75 pure nickel can be used without further purification depending on the composition of the impurities
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Nickel II Chloride concentration on the germination rate
2021 7 13 Independent variable Nickel Ni ion concentration ppm ± 0 01ppm Solutions of 0 30 60 90 120 mg/L were used Hydrous nickel II chloride was used as this is the most common soluble form of nickel These values were chosen in accordance with the nickel ion concentration found in
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Nickel Electroplating
2011 9 29 This concentration is generally adequate but as current density requirements increase the increased depletion rate should be offset by an increase in nickel ion concentration The total nickel ion concentration is a significant factor in the limiting current density or the point at which nodular or burned deposits become evident
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A Method for Electroless Nickel Plating on Aluminum
A Method for Electroless Nickel Plating on Aluminum Alloy Surface Engineering Science Vol 5 No 3 2020 pp 33 37 doi 10 11648/j 12 the concentration of nickel salt continues to increase the deposition rate of the coating decreases instead possibly because the plate surface
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Method of electrolytic refining of nickel
The closest technical solution is a method for electrolytic refining rough Nickel Baibakov Y C Zhurin A I Electrolysis in hydrometallurgy Moscow metallurgy 1977 S 201 in which the shortage of Nickel is compensated by dissolving Nickel sulfide concentrate in autoclaves at high pressure and temperature in sulfuric acid and
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Effect of element concentration on nickel release from
2009 12 16 Effect of element concentration on nickel release from dental alloys using a novel ion beam method Siân B Jones Division of Chemistry and Materials
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Determination of Zinc and Nickel Concentration by 1 Ion
The expected concentration of nickel in the unknown was 0 00125 M The concentration was determined to be 0 00068 M and 0 00153 M through EDTA titration and AAS respectively The percent errors for the values were 45 6 and 69 6 correspondingly The expected concentration of zinc in
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DETERMINATION OF COPPER IRON AND NICKEL IN
2017 7 24 Determination of Cu Fe and Ni in oils and fats by GFAAS 895 Table 1 Concentration levels and average recoveries mg/kg of Cu Fe and Ni in oils and fats Concen Copper k25 Iron k = 28 Nickel k 27 tration Substrate level Batch Batch Level Batch Level Batch Level averages averages averages averages averages averages
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Determination of Calcium Ion Concentration
2021 5 9 iron cobalt nickel zinc or manganese in high concentrations may cause errors using this method However this is unlikely for the solutions and solids suggested 5 This method for determining the concentration of Ca2 in a sample may be used with the method for measuring total Ca2 and Mg2 concentration
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Nickel Columns and Nickel Resin
2021 8 3 Nickel Resin and Nickel Beads There are two methods for producing immobilized nickel resins Both methods use a chelator to form a coordination compound with metal ions The two most common chelators are iminodiacetic acid nickel IDA or Ni IDA and nitrilotriacetic acid nickel
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Atmospheric pressure leaching of nickel from a low
2018 6 27 the residual acid concentration and decrease the iron content by multi step leaching techniques Liu et al 2004 Liu and Krebs 2006 Another strategy to reduce the large amount of acid without jeopardizing nickel recovery was to pre treat the lateritic ores Among the pretreatment methods the following were explored reductive
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Pre concentration of nickel in laterite ores using
2019 9 1 This paper examines the effects of different physical methods on pre concentration of nickel in laterite ores The effect of ore mineralogy on choosing the best strategy to upgrade nickel will be discussed The findings of this project will help to unlock a substantial volume of nickel with significant value from laterite ores
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THE MODELING OF ALUMINUM LAYER FORMATION ON
2014 3 12 velocity method in which material velocity and velocities of individual components are considered and allows calculating concentration profiles spatial distribution of entropy production rate and diffusion path It takes into consideration the mass transport in
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NICKEL METAL INSOLUBLE COMPOUNDS as Ni
2021 1 5 NICKEL METAL INSOLUBLE COMPOUNDS as Ni † nickel metal elemental nickel nickel catalyst nickel subsulfide raney nickel Other synonyms vary depending upon the specific nickel compound Results are provided for the presence and amount or concentration of a specific element or elements The stated identity of the actual sample contents
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determination of nickel by gravimetric method docx
Conclusion The gravimetric analysis method to determine the compound in a certain unknown salt was studied The weight percent of nickel by gravimetric method was determined The amount of nickel in a given salt was also determined Experimental weight percent of Nickel in
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