1980
DOI: 10.1007/bf02302460
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Simultaneous determination of Cr(III) and Cr(VI) in water by reversed phase HPLC, after chelating with sodium diethyldithiocarbamate

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Cited by 57 publications
(22 citation statements)
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“…This strong hydration prohibits the access of chelating agents to the metal centers in conventional solvent extraction. 3,4 With a selective chelating agent and under specific conditions, Cr(VI) and Cr(III) can be separated from aqueous solutions by solvent extraction. …”
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confidence: 99%
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“…This strong hydration prohibits the access of chelating agents to the metal centers in conventional solvent extraction. 3,4 With a selective chelating agent and under specific conditions, Cr(VI) and Cr(III) can be separated from aqueous solutions by solvent extraction. …”
mentioning
confidence: 99%
“…5 The complexes formed by Cr(VI) and Cr(III) individually with sodium diethyldithiocarbamate (NaDDC) give different chemical structures. For example, Tande et al 3 and Hope et al 8 reported that Cr(III) forms a Cr(DDC)3 complex with NaDDC, whereas Cr(VI) is first reduced by the ligand and then forms two different complexes Cr(DDC)3 and Cr(DDC)2(ODDC), where ODDC represents an oxygen atom inserted between the metal ion and one of the sulfur atoms.3,8 These two complexes formed by Cr(VI) with NaDDC can be separated by HPLC. 3,9 Extraction of Cr(III) by APDC occurs at higher pH but appears to have a very low efficiency at room temperature.…”
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