Chromium speciation in liquid matrices: a survey of the literature

Marqués, María José Aradilla; Salvador, Amparo; Morales‐Rubio, Ángel; Guárdia, Miguel de la

doi:10.1007/s002160000422

Cited by 150 publications

(78 citation statements)

References 1 publication

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“…Conversely, Cr(VI) species are carcinogenic and extremely toxic. 7,8 Moreover, Cr(VI) has a higher solubility and mobility than Cr(III) species increasing its dangerous effects.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Amidoxime Adsorbent by Radiation Induced Grafting of Acrylonitrile on Polyethylene Film and Its Application in Cr(VI) Removal

Rahman¹,

Dafader²,

Miah³

et al. 2018

JPS

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“…Conversely, Cr(VI) species are carcinogenic and extremely toxic. 7,8 Moreover, Cr(VI) has a higher solubility and mobility than Cr(III) species increasing its dangerous effects.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Amidoxime Adsorbent by Radiation Induced Grafting of Acrylonitrile on Polyethylene Film and Its Application in Cr(VI) Removal

Rahman¹,

Dafader²,

Miah³

et al. 2018

JPS

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“…Inorganic chemical pollutants are naturally found at trace levels in soil and vegetation but, due to different anthropogenic sources these pollutants are often concentrated in the environmental compartments. Generally, inorganic chemicals could be considered as nutrients and heavy metals [4]. Heavy metals are not biodegradable and thus persist in the environment for long periods of time and their effect is dependent on their corresponding concentrations [1,5].…”

Section: Introductionmentioning

confidence: 99%

Lead accumulation in the roadside soils from heavy density motor way towns of eastern Ethiopia

Teju¹,

Megersa²,

Chandravanshi³

et al. 2014

Bull. Chem. Soc. Eth.

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ABSTRACT. The levels of lead pollution in the roadside soils of the heavy density motor ways of Eastern Ethiopia, in particular; Modjo, Bishoftu and Adama towns were studied. Soil samples were collected from a total of 22 sampling sites while the control samples were obtained from places about 1 km away from the main roads of each town. Concentrations of lead, in soil samples, were determined using flame atomic absorption spectrometer and the average concentrations of lead were found to be 93.3 ± 1.0, 79.4 ± 0.6 and 80.6 ± 0.4 µg/g for Modjo, Bishoftu and Adama towns, respectively. The concentrations of lead in soils sampled 1 km away from the main road for each town were: 13.5 ± 0.3, 19.6 ± 0.7 and 20.8 ± 0.8 µg/g for Modjo, Bishoftu and Adama towns, respectively. The contamination factors for the average lead concentrations of Modjo, Bishoftu and Adama towns were 6.9, 4.0 and 3.8, respectively. Besides, the correlations between the lead level and the traffic density of the corresponding roads were found to be r (4) = 0.82, p < 0.05 for Modjo, r (5) = 0.32, p < 0.05 for Bishoftu and r (9) = 0.81, p < 0.05 for Adama.

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“…Cr(III) is biologically essential for living organisms, while Cr(VI) is cancer causing. 1 The carcinogenic activity of Cr(VI) is because it can penetrate through the cell membrane and oxidize biological material. The industrial discharge from various tanning, pigments and electroplating industries introduces Cr(VI) in surrounding water bodies.…”

Section: Introductionmentioning

confidence: 99%

Online Preconcentration Procedure for Chromium Speciation and Determination in Industrial Water Samples Using Flame Atomic Absorption Spectrometry

2016

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An online preconcentration system based on solid-phase extraction was developed for speciation and determinations of Cr in industrial water samples using flame atomic absorption spectrometry. A minicolumn packed with Amberlite XAD-16 loaded with salicylic acid was used to preconcentrate chromium species. All flow and chemical parameters that influence sorption were studied. The preconcentration factor and detection limit for the preconcentration time of 120 s were 79 and 0.10 μg L -1 , respectively. The concentration of Cr(VI) species was calculated by the difference of the total Cr and Cr(III). The relative standard deviation (RSD) (five replicate of measurements) for 50 and 100 μg L -1 Cr(III) solution was 1.2 and 1.0% respectively. The accuracy of the method was verified by analyzing a standard reference material (NIST SRM 1640a, trace elements in natural water). The proposed preconcentration method was successfully applied to the determination of Cr species in industrial water samples with satisfactory results.

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Chromium speciation in liquid matrices: a survey of the literature

Cited by 150 publications

References 1 publication

Preparation of Amidoxime Adsorbent by Radiation Induced Grafting of Acrylonitrile on Polyethylene Film and Its Application in Cr(VI) Removal

Preparation of Amidoxime Adsorbent by Radiation Induced Grafting of Acrylonitrile on Polyethylene Film and Its Application in Cr(VI) Removal

Lead accumulation in the roadside soils from heavy density motor way towns of eastern Ethiopia

Online Preconcentration Procedure for Chromium Speciation and Determination in Industrial Water Samples Using Flame Atomic Absorption Spectrometry

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