Separation of trans-1,2-cyclohexanediaminetetra-acetic acid chelates of bismuth(III), iron(III) and copper(II) by reversed-phase paired-ion chromatography |
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Authors: | Inoue S Hashimoto N Hoshi S Matsubara M |
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Affiliation: | Department of Environmental Engineering, Kitami Institute of Technology, Kitami-shi, 090 Japan |
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Abstract: | Trans-1,2-cyclohexanediaminetetra-acetic acid (DCTA) chelates of bismuth(III), iron(III) and copper(II) have been separated by two techniques using reversed-phase paired-ion chromatography. In one, the chelates in aqueous solution were separated within 20 min on a 6.0 × 300 mm ERC-ODS column with 10−2M tetrabutylammonium ion (TBA+) in methanoi-water mixture (45:55 v/v) as eluent. In the other, the metal ions in aqueous solution were separated within 10 min by direct injection into an ERC-ODS column with 10−2M TBA+/10−3M DCTA in methanoi-water mixture (40:60 v/v) as eluent. |
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Keywords: | To whom correspondence should be addressed. |
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