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Determination of chromium(III) and total chromium in marine waters
Analytical and Bioanalytical Chemistry, 1996The development of an analytical technique is described which may be used to determine chromium, chromium(III) and chromium(VI) in estuarine and coastal waters. The method is based on selective micro-solvent extraction with subsequent GFAAS. The technique has been applied in a major North Sea estuary.
M J, Gardner, J E, Ravenscroft
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Total chromium and hexavalent chromium occurrence analysis
Journal AWWA, 2013Total and hexavalent chromium occurrence in the United States was investigated using three available datasets. The National Chromium and Boron Occurrence Survey, the US Environmental Protection Agency database of chromium from the Second Six‐Year Review, and California Department of Public Health water quality analysis data were obtained and analyzed ...
Chad J. Seidel, Christopher J. Corwin
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Quantification of total chromium and hexavalent chromium in UHT milk by ETAAS
The Analyst, 1998Procedures for the quantification of total chromium and hexavalent chromium in UHT milk samples are presented. Total chromium was determined directly in milk with the addition of a surfactant and a mixture of Pd and Mg as a chemical modifier. For the selective separation of hexavalent chromium, the sample pre-treatment consisted in precipitation of ...
J, Lameiras +3 more
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Isotope dilution measurement of inorganic chromium(III) and total chromium in seawater
Marine Chemistry, 1984Abstract A reproducible, low-blank, isotope-dilution technique for the determination of inorganic Cr(III) and total dissolved chromium in seawater has been developed. Analysis of coastal water from Brittany, France, confirms that inorganic Cr(III) exists in excess of the thermodynamic equilibrium value calculated from the model of Elderfield (1970 ...
C Jeandel, J.-F Minster
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Chromium Content of Total Parenteral Nutrition Solutions
Journal of Parenteral and Enteral Nutrition, 1990Chromium (Cr) present as contaminant was analyzed by flameless atomic absorption spectrometry in a variety of commercially produced solutions and additives commonly used in total parenteral nutrition (TPN) formulas. Total Cr likely to be administered unintentionally per day was estimated both by summing the Cr in appropriate volumes of each solution ...
Y, Ito, N W, Alcock, M E, Shils
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Determination of total chromium in sediments by FAAS
Fresenius' Journal of Analytical Chemistry, 1995The determination of chromium by flame atomic absorption spectroscopy (FAAS), e.g. as performed for environmental matrices, is still a controversial matter as can be concluded from a literature review. Most controversy is due to the measurement conditions or the effect of the interferences; other conditions such as digestion seem to be less critical ...
A. Sahuquillo +3 more
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Talanta, 2012
Developed were the determination methods of Cr(VI) and Cr(III) by electrospray ionization mass spectrometry, where HCrO(4)(-) (m/z 117) and [Cr(III)(cydta)](-) (m/z 394) were measured, respectively. Moreover, total Cr was also determined by measuring [Cr(III)(cydta)](-) after reduction of Cr(VI) with ascorbic acid.
Hiroki, Hotta +7 more
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Developed were the determination methods of Cr(VI) and Cr(III) by electrospray ionization mass spectrometry, where HCrO(4)(-) (m/z 117) and [Cr(III)(cydta)](-) (m/z 394) were measured, respectively. Moreover, total Cr was also determined by measuring [Cr(III)(cydta)](-) after reduction of Cr(VI) with ascorbic acid.
Hiroki, Hotta +7 more
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Journal of Electroanalytical Chemistry, 2017
Abstract We report a sensitive electrochemical protocol based on an easy-to-produce and disposable plastic electrode for the determination of total chromium (Cr) and Cr(VI). The electrode was fabricated by sputtering a thin layer of gold on a polyethylene terephthalate (PET) substrate.
Wan Wang +5 more
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Abstract We report a sensitive electrochemical protocol based on an easy-to-produce and disposable plastic electrode for the determination of total chromium (Cr) and Cr(VI). The electrode was fabricated by sputtering a thin layer of gold on a polyethylene terephthalate (PET) substrate.
Wan Wang +5 more
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Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 1966
1. A rapid, simple, and accurate micromethod for determining chromium (VI) and total chromium in aluminum-chromium catalysts has been developed. 2. The oxides of potassium and the rare-earth elements do not interfere with the determination of chromium.
V. A. Klimova, F. B. Sherman
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1. A rapid, simple, and accurate micromethod for determining chromium (VI) and total chromium in aluminum-chromium catalysts has been developed. 2. The oxides of potassium and the rare-earth elements do not interfere with the determination of chromium.
V. A. Klimova, F. B. Sherman
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Biological Trace Element Research, 1995
Chromium (Cr), an essential micronutrient required for glucose metabolism, was found in high concentrations in up to 94% of the patients on short-term total parenteral nutrition. Approximately 50% had serum levels > 10-fold of normal (upper reference value of 3.8 nmol/L), about 18% were > 20-fold, and about 2% were 40-fold higher.
F Y, Leung, L V, Galbraith
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Chromium (Cr), an essential micronutrient required for glucose metabolism, was found in high concentrations in up to 94% of the patients on short-term total parenteral nutrition. Approximately 50% had serum levels > 10-fold of normal (upper reference value of 3.8 nmol/L), about 18% were > 20-fold, and about 2% were 40-fold higher.
F Y, Leung, L V, Galbraith
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