Results 261 to 270 of about 84,721 (308)
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Determination of total chromium in phosphate rocks by ion chromatography
Journal of Chromatography A, 1999Chromium(VI) is one of seven elements which is classified in the fertilizer industry as being harmful to plants and biological systems. Phosphate rocks represent the raw material for complex fertilizer production in the world. This paper investigates for the first time the determination of total chromium in phosphate rocks by ion chromatography.
A W, al-Shawi, R, Dahl
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Dermatitis Associated With Chromium Following Total Knee Arthroplasty
The Journal of Arthroplasty, 2011All metal implants release metal ions because of corrosion. Although 20% to 25% of patients develop metal sensitivity after total joint arthroplasty, which is 10% higher than that in the general population, only very few highly susceptible patients exhibit symptoms.
Xiang, Gao +3 more
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The Analyst, 1998
The preparation is described of a batch of 1100 vials containing a lyophilised solution, with CrVI and CrIII contents as in natural or tap water and a total Cr content
K. Vercoutere +3 more
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The preparation is described of a batch of 1100 vials containing a lyophilised solution, with CrVI and CrIII contents as in natural or tap water and a total Cr content
K. Vercoutere +3 more
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J. Anal. At. Spectrom., 1993
A method for the determination of chromium(III) and total chromium was studied. Chromium(III) was chelated with 0.1 mol l–1 quinolin-8-ol in methanol, extracted with isobutyl methyl ketone and determined by electrothermal atomic absorption spectrometry.
E. Beceiro-González +4 more
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A method for the determination of chromium(III) and total chromium was studied. Chromium(III) was chelated with 0.1 mol l–1 quinolin-8-ol in methanol, extracted with isobutyl methyl ketone and determined by electrothermal atomic absorption spectrometry.
E. Beceiro-González +4 more
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Mikrochimica Acta, 1982
A spectrophotometric method has been developed for the determination of chromium in waste water with 5-Br-PADAP (2-(5-brorno-2-pyridylazo)-5-diethylaminophenol). Chromium(III) forms a blue-purple complex at pH 4.7 upon heating. The color is very stable and is highly sensitive for chromium.
Wei Fu-sheng +4 more
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A spectrophotometric method has been developed for the determination of chromium in waste water with 5-Br-PADAP (2-(5-brorno-2-pyridylazo)-5-diethylaminophenol). Chromium(III) forms a blue-purple complex at pH 4.7 upon heating. The color is very stable and is highly sensitive for chromium.
Wei Fu-sheng +4 more
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Chromium Deficiency During Total Parenteral Nutrition
JAMA: The Journal of the American Medical Association, 1979Chromium is required for maintenance of normal glucose tolerance. After complete bowel resection and five months of total parenteral nutrition, severe glucose intolerance, weight loss, and a metabolic encephalopathylike confusional state developed in a patient. Serum chromium levels were at the lowest normal level. Supplementation of 150 μg of chromium
H, Freund, S, Atamian, J E, Fischer
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Total chromium and nickel contents of Scottish soils
Geoderma, 1986Abstract The frequency distributions of chromium and nickel contents in Scottish soils are reported and the relation of the concentrations of these elements to some other soil variables is examined. The frequency distributions of both elements are approximately log-normal and are described in terms of the derived mean ( x ∗ ) and the ...
M.L. Berrow, G.A. Reaves
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Total diastereoselective synthesis of chromium cyclopropylcarbene complexes
Tetrahedron Letters, 1995Abstract Trans -substituted chromium cyclopropylmethoxycarbene complexes 4 have been obtained with total diastereoselectivity through a conjugated addition of in situ generated chloromethyllithium to vinylmethoxycarbene chromium complexes.
José Barluenga +2 more
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Analytical Chemistry, 2009
Isothiocyanobenzyl group-appended ethylenediamine tetraacetic acid (EDTA) was used to covalently couple Cr(III) x EDTA to keyhole limpet hemocyanin for use as an immunogen. An obtained monoclonal antibody (RD3G4) bound to Cr(III) x EDTA with an equilibrium dissociation constant (K(d)) of 9.7 nM, which was 100-fold tighter than the K(d)s for the other ...
Kazuhiro, Sasaki +3 more
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Isothiocyanobenzyl group-appended ethylenediamine tetraacetic acid (EDTA) was used to covalently couple Cr(III) x EDTA to keyhole limpet hemocyanin for use as an immunogen. An obtained monoclonal antibody (RD3G4) bound to Cr(III) x EDTA with an equilibrium dissociation constant (K(d)) of 9.7 nM, which was 100-fold tighter than the K(d)s for the other ...
Kazuhiro, Sasaki +3 more
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Talanta, 2007
A simple, rapid and sensitive method for the determination of chromium(III) and total chromium using the simple dual T channels on glass chip with negative pressure pumping system and chemiluminescence (CL) detection is presented. The CL reaction was based on luminol oxidation by hydrogen peroxide in basic aqueous solution catalyzed by chromium(III ...
Waraporn, Som-Aum +3 more
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A simple, rapid and sensitive method for the determination of chromium(III) and total chromium using the simple dual T channels on glass chip with negative pressure pumping system and chemiluminescence (CL) detection is presented. The CL reaction was based on luminol oxidation by hydrogen peroxide in basic aqueous solution catalyzed by chromium(III ...
Waraporn, Som-Aum +3 more
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