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Excessive chromium intake in children receiving total parenteral nutrition
The Lancet, 1992Various expert bodies have recommended that the daily parental intake of chromium in children receiving total parenteral nutrition (TPN) should be 0.20 micrograms/kg. To test whether this recommendation is appropriate, we assessed chromium intake, serum chromium concentrations, and renal function in 15 children receiving TPN. The median duration of TPN
A A, Moukarzel +7 more
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Water, Air, & Soil Pollution, 2016
The overall purpose of this work was to evaluate the treatment system performance of sequential hybrid bioreactors, one without aeration and another with intermittent aeration, in the bioremoval of Cr(VI) and total chromium and in the removal of total organic carbon (TOC). The saturation kinetic curves were studied with initial concentrations of Cr(VI)
C. A. B. Crisostomo +4 more
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The overall purpose of this work was to evaluate the treatment system performance of sequential hybrid bioreactors, one without aeration and another with intermittent aeration, in the bioremoval of Cr(VI) and total chromium and in the removal of total organic carbon (TOC). The saturation kinetic curves were studied with initial concentrations of Cr(VI)
C. A. B. Crisostomo +4 more
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Increased Blood Cobalt and Chromium After Total Hip Replacement
Journal of Toxicology: Clinical Toxicology, 1999To determine metal concentrations in blood and urine of patients who received cobalt-chromium-alloy metal on metal hip implants.Cobalt and chromium were determined in blood and urine of 76 patients and 26 controls by electrothermal atomic absorption spectroscopy.A significant postoperative elevation of the metal concentrations was observed for total ...
Andreas W. Schaffer +5 more
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Chromium deficiency after long-term total parenteral nutrition
Digestive Diseases and Sciences, 1986A 63-year-old female developed unexplained hyperglycemia and glycosuria during administration of a total parenteral nutrition regimen on which she had been stable for several months. Because the patient had no history of diabetes or evidence of an infection, chromium deficiency was considered.
R O, Brown +3 more
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Permanganate‐Azide Test for Total Chromium in Water
Journal AWWA, 1956chromium and a diphenylcarbazide reagent, resulting in a characteristic reddish-violet color, following Beer's Law. This reaction does not occur with trivalent or bivalent chromium. To facilitate the determination of the total chromium which may be present in a water, it has been found feasible to oxidize the polyvalent chromium ions to the hexavalent ...
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Determination of total chromium by flow injection analysis
Analytica Chimica Acta, 1985Abstract The determination of total chromium by flow injection analysis is described. Cerium(IV) and nitric acid are used to convert chromium(III) to chromium(VI); the oxidation rate is enhanced by placing the reaction coil in an 80°C oil bath. 1,5-Diphenylcarbazide is used to form a colored complex with chromium(VI) that is measured at 540 nm.
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Journal of Analytical Atomic Spectrometry, 1994
An electrothermal atomic absorption spectrometric method was developed for the determination of total and hexavalent chromium in animal feeds. For measuring total chromium the samples were digested in a mixture of three acids (HNO3–HCl–HF). Chromium in its hexavalent state was dissolved in 0.01 mol l–1 NaOH solution.
M. Elisa Soares +2 more
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An electrothermal atomic absorption spectrometric method was developed for the determination of total and hexavalent chromium in animal feeds. For measuring total chromium the samples were digested in a mixture of three acids (HNO3–HCl–HF). Chromium in its hexavalent state was dissolved in 0.01 mol l–1 NaOH solution.
M. Elisa Soares +2 more
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Hexavalent Chromium and Total Chromium
American Industrial Hygiene Association Quarterly, 1957Robert G. Keenan, Vernon B. Perone
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Transference of total chromium and hexavalent chromium from soils to mushrooms
Toxicology Letters, 2007Estela Figueiredo +3 more
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Environmental Research, 2003
Airborne particulate matter was collected from the atmosphere of the city of Isfahan by a high-volume air sampler. Determination of the concentration of total chromium was carried out by graphite furnace atomic absorption spectrometry after acid digestion.
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Airborne particulate matter was collected from the atmosphere of the city of Isfahan by a high-volume air sampler. Determination of the concentration of total chromium was carried out by graphite furnace atomic absorption spectrometry after acid digestion.
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