Home > Publications database > Soil humic acids may favour the persistence of hexavalent chromium in soil > print

001     87836
005     20250731122247.0
024 7 _ |a pmid:19231051
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024 7 _ |a 0013-9327
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024 7 _ |a 1873-6424
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024 7 _ |a 0269-7491
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024 7 _ |a 1878-2450
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024 7 _ |a 10.1016/j.envpol.2009.01.020
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037 _ _ |a PHPPUBDB-9565
041 _ _ |a eng
082 _ _ |a 333.7
100 1 _ |a Leita, L.
110 1 _ |a DESY
|b Experiments with synchrotron radiation
245 _ _ |a Soil humic acids may favour the persistence of hexavalent chromium in soil
260 _ _ |a Amsterdam [u.a.]
|c 2009
|b Elsevier Science
300 _ _ |a 1862-1866
336 7 _ |a Journal Article
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336 7 _ |a article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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440 _ 0 |a Environ. Pollut.
|0 PERI:(DE-600)2013037-5
|v 157
|x 0269-7491
500 _ _ |3 Converted on 2013-05-30 13:05
500 _ _ |3 Converted on 2013-06-21 19:20
520 _ _ |a The interaction between hexavalent chromium Cr(VI), as K(2)CrO(4), and standard humic acids (HAs) in bulk solution was studied using three complementary analytical methods: UV-Visible spectroscopy, X-ray absorption spectroscopy and differential pulse stripping voltammetry. The observed UV-Vis and X-ray absorption spectra showed that, under our experimental conditions, HAs did not induce reduction of Cr(VI) to its trivalent chemical form. The interaction between Cr(VI) and HAs has rather led to the formation of Cr(VI)-HAs micelles via supramolecular chemical processes. The reported results could contribute towards explaining the relative persistence of ecotoxic hexavalent chromium in soils.
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588 _ _ |a Dataset connected to Pubmed
650 _ 7 |a Humic Substances
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|2 NLM Chemicals
650 _ 7 |a Soil
|0 0
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650 _ 7 |a Soil Pollutants
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|2 NLM Chemicals
650 _ 7 |a chromium hexavalent ion
|0 18540-29-9
|2 NLM Chemicals
650 _ 7 |a Chromium
|0 7440-47-3
|2 NLM Chemicals
650 _ 2 |a Absorptiometry, Photon: methods
|2 MeSH
650 _ 2 |a Chromium: analysis
|2 MeSH
650 _ 2 |a Chromium: chemistry
|2 MeSH
650 _ 2 |a Ecotoxicology: methods
|2 MeSH
650 _ 2 |a Electrochemistry: methods
|2 MeSH
650 _ 2 |a Humic Substances
|2 MeSH
650 _ 2 |a Hydrogen-Ion Concentration
|2 MeSH
650 _ 2 |a Soil: analysis
|2 MeSH
650 _ 2 |a Soil Pollutants: analysis
|2 MeSH
650 _ 2 |a Soil Pollutants: chemistry
|2 MeSH
650 _ 2 |a Spectrophotometry, Ultraviolet: methods
|2 MeSH
650 _ 2 |a Time Factors
|2 MeSH
693 _ _ |a DORIS III
|f DORIS Beamline E4
|1 EXP:(DE-H253)DORISIII-20150101
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700 1 _ |a Margon, A.
700 1 _ |a Pastrello, A.
700 1 _ |a Arcon, I.
700 1 _ |a Contin, M.
700 1 _ |a Mosetti, D.
773 _ _ |a 10.1016/j.envpol.2009.01.020
|g Vol. 157, p. 1862-1866
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|t Environmental pollution
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920 _ 1 |i Experiments with synchrotron radiation
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