Speciation Analysis of Chromium in Environmental Samples

Namieśnik, Jacek; Rabajczyk, Anna

doi:10.1080/10643389.2010.518517

Cited by 76 publications

(33 citation statements)

References 177 publications

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“…The methods of analysis for chromium species have been reviewed by several authors, mainly in water or environmental matrices (Swietlik, 1998;Sarzanini, 1999;Camara et al, 2000;Kotaś and Stasicka, 2000;Yalcin and Apak, 2004;Unceta et al, 2010;Amouroux et al, 2011;Namiesnik and Rabajczyk, 2012;Rakhunde et al, 2012;Water Research Foundation, 2012) and rarely in food (Gomez and Callao, 2006). Analytical techniques generally used for Cr speciation can be separated into two groups.…”

Section: Chromium Speciation Analysismentioning

confidence: 99%

“…Spectrophotometric and colorimetric methods are still widely used for chromium speciation in water samples (Swietlik, 1998;Kotaś and Stasicka, 2000;Namiesnik and Rabajczyk, 2012;Water Research Foundation, 2012). Both methods are mainly based on determination of Cr(VI) as a coloured complex with 1,5-diphenylcarbazide.…”

Section: Chromium Speciation Analysismentioning

confidence: 99%

“…Atomic spectrometric techniques such as FAAS, ETAAS and ICP-AES have been used for chromium speciation after a separation or isolation technique that provides selectivity for one species relative to the other (Vercoutere et al, 1996;Kotaś and Stasicka, 2000;Namiesnik and Rabajczyk, 2012). For samples with low levels of chromium, the use of a preconcentration technique with ETAAS (LOD of 0.021 µg/L) (Liang and Sang, 2008) is more suitable than FAAS detection (LOD of 0.2-6.1 µg/L) (Cespon-Romero et al, 1996;Tuzen and Soylak, 2006;Duran et al, 2007;Aydin and Soylak, 2007;Saygi et al, 2008;Bulut et al, 2009;Matos et al, 2009;Uluozlu et al, 2009;Zeng et al, 2012).…”

Section: Chromium Speciation Analysismentioning

confidence: 99%

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Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking water

2014

EFS2

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EFSA received a request from the Hellenic Food Authority for a scientific opinion on estimation of the risk to human health from the presence of chromium (Cr) in food, particularly in vegetables, and Cr(VI) in bottled water. The CONTAM Panel derived a TDI of 0.3 mg/kg b.w. per day for Cr(III) from the lowest NOAEL identified in an NTP chronic oral toxicity study in rats. Under the assumption that all chromium in food is Cr(III), the mean and 95th percentile dietary exposure across all age groups were well below the TDI and therefore does not raise concerns for public health. In the case of drinking water, the Panel considered all chromium in water as Cr(VI). For non‐neoplastic effects the lowest BMDL10 for diffuse epithelial hyperplasia of duodenum in female mice and the lowest BMDL05 for haematotoxicity in male rats in a 2‐year NTP study were selected as reference points. The MOEs indicate that for non‐neoplastic effects the current exposure levels to Cr(VI) via drinking water are of no concern for public health. For neoplastic effects, the CONTAM Panel selected a lowest BMDL10 for combined adenomas and carcinomas of the mouse small intestine as the reference point. Overall, the calculated MOEs indicate low concern regarding Cr(VI) intake via drinking water (water intended for human consumption and natural mineral waters) for all age groups when considering the mean chronic exposure values with the exception of infants at the upper bound (UB) exposure estimates. MOEs below 10 000 were calculated at the UB 95th percentile exposure estimates, particularly for ‘Infants’, ‘Toddlers’ and ‘Other children’, which were highly influenced by the relatively high occurrence values under the UB assumption. To improve the risk assessment, there is a need for data on the content of Cr(III) and Cr(VI) in food and drinking water.

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Section: Chromium Speciation Analysismentioning

confidence: 99%

Section: Chromium Speciation Analysismentioning

confidence: 99%

Section: Chromium Speciation Analysismentioning

confidence: 99%

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Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking water

2014

EFS2

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“…The chromium, as a chemically toxic element, has drawn extensive attention today due to its hazardous effects on environment and health. It is extensively used in pigments, printing, leather tanning, electroplating, steel and glass industries . It is well known that the toxicity of chromium depends on its oxidation states, Cr(VI) and Cr(III), and that the former is approximately 100 times more toxic than Cr(III).…”

Section: Introductionmentioning

confidence: 99%

“…It is extensively used in pigments, printing, leather tanning, electroplating, steel and glass industries. [1][2][3] It is well known that the toxicity of chromium depends on its oxidation states, Cr(VI) and Cr(III), and that the former is approximately 100 times more toxic than Cr(III). Thus, in order to protect the environment and reduce the harm to humans, the World Health Organization (WHO) guidelines limit total chromium and Cr(VI) to 100 and 50 mgL À 1 , respectively, in groundwater.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr₂O₇²⁻ and CrO₄²⁻ Anions

Cai

Sun

et al. 2018

ChemistrySelect

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Two cadmium (II) phosphonates, [Cd(MPBP)(2, 2′−bipy)(H2O)]⋅H2O (1) and [Cd(H2BPDP)(2,2′−bipy)2(H2O)]⋅H2O (2) [H2MPBP=4,4−Bis(monoethylphosphonomethyl)biphenyl, H4BPDP=biphenyl−4,4′−diylbis(methylene)diphosphonic acid, 2,2′−bipy=2,2′−bipyridine], had been successfully synthesized under hydrothermal conditions with different reaction temperatures by using H2MPBP as the phosphonate ligand and 2,2′−bipyridine as the second organic ligand. The compound 1 exhibited a 3D supramolecular structure, in which {CdN2O4} polyhedra and {CPO3} tetrahedra were interconnected by MPBP anions to form a 1D double chain via corner–sharing. Neighboring chains were linked into a 2D supramolecular sheet in the ac–plane by hydrogen bonding interactions, which were further assembled through π−π stacking interactions to form a 3D supramolecular structure. Compound 2 was assembled through π−π stacking and hydrogen bonding interactions to form a 1D supramolecular structure. Furthermore, both compounds exhibited remarkable luminescent properties, and could be applied as the high selective and sensitive luminescent sensors in the sensing of Cr2O72− and CrO42− anions through the luminescence quenching effect with a low–detection limit of 3.5 × 10−7 M and 4.6 × 10−7 M (for 1) and 6.1 × 10−7 M and 4.3 × 10−7 M (for 2), respectively. Additionally, the probable mechanisms for the quenching behaviour for the two compounds had also been investigated in detail.

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Speciation of Trace Elements and its Importance in Environmental and Biomedical Sciences

Pawlaczyk

Maćkiewicz

Szynkowska

2018

Recent Advances in Trace Elements

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Speciation Analysis of Chromium in Environmental Samples

Cited by 76 publications

References 177 publications

Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking water

Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking water

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr₂O₇²⁻ and CrO₄²⁻ Anions

Speciation of Trace Elements and its Importance in Environmental and Biomedical Sciences

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Speciation Analysis of Chromium in Environmental Samples

Cited by 76 publications

References 177 publications

Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking water

Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking water

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr2O72− and CrO42− Anions

Speciation of Trace Elements and its Importance in Environmental and Biomedical Sciences

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Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr₂O₇²⁻ and CrO₄²⁻ Anions