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Kongasseri A, Madhesan T, Krishna Kumar S, Pedugu Sivaraman S, Mitra S, Kancharlapalli Chinaraga P, Rao CVSB, Nagarajan S, Deivasigamani P, Mohan AM. Amide-decorated reusable C 18 silica-packed columns for the rapid, efficient and sequential separation of lanthanoids using reversed phase-high performance liquid chromatography. J Chromatogr A 2024; 1713:464509. [PMID: 37980811 DOI: 10.1016/j.chroma.2023.464509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/11/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
The current work focuses on the sequential separation of trivalent lanthanides (except Pm3+) using modified C18 silica-packed supports through the reversed-phase high-performance liquid chromatography (RP-HPLC) technique. In the current research, four indigenously synthesized amphiphilic aromatic triamide derivatives, namely N1, N1, N3, N3, N5, N5-hexa(alkyl) benzene-1,3,5-tri carboxamide (alkyl = butyl, hexyl, octyl, and decyl), were employed as column modifiers. The results show that the separation of Ln3+ can be achieved systematically (< 12 min) by tuning the modifiers' functional group and hydrophobic chain and fine-tuning the column modification procedure and separation parameters. The chromatographic studies revealed that the use of 0.168 mmol of N1, N1, N3, N3,N5, N5-hexa(hexyl)benzene-1,3,5-tricarboxamide (HHBTA) coated column and 0.419 mmol of N1, N1, N3, N3, N5, N5-hexa(octyl) benzene-1,3,5-tricarboxamide (HOBTA) modified columns offered excellent separation for the lanthanoids, using 0.1 M α-hydroxyisobutyric acid (HIBA), as mobile phase. The separated lanthanoids were quantified by post-column derivatization reaction (after the separation process) using Arsenazo (III) as the post-column reagent by integrating with a UV-Visible detector fixed at 655 nm (λmax). A systematic study on the influence of various analytical features, such as the effect of the modifier's chain length and its concentration, mobile phase composition and pH, was performed and optimized for achieving the best separation protocols.
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Affiliation(s)
- Aswanidevi Kongasseri
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Thirumalai Madhesan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Sangeetha Krishna Kumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Sushmitha Pedugu Sivaraman
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Suchashrita Mitra
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | | | - C V S Brahmmananda Rao
- Indira Gandhi Centre for Atomic Research, Homi Bhabha National Institute (HBNI), Kalpakkam, Tamil Nadu 603102, India
| | - Sivaraman Nagarajan
- Indira Gandhi Centre for Atomic Research, Homi Bhabha National Institute (HBNI), Kalpakkam, Tamil Nadu 603102, India
| | - Prabhakaran Deivasigamani
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India.
| | - Akhila Maheswari Mohan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India.
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Abdallah AB, Youins AM, El-Kholany MR. Selective separation of uranyl ions from some lanthanide elements using a promising β-enaminoester ligand by cloud point extraction. RSC Adv 2022; 12:8520-8529. [PMID: 35424829 PMCID: PMC8985234 DOI: 10.1039/d2ra00274d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/14/2022] [Indexed: 11/21/2022] Open
Abstract
For uranyl extraction, a distinctive chelating ligand, namely ethyl 2-amino-6-hydroxy-5-(4-methoxyphenyldiazenyl)-4-phenyl-4H-benzo[f]chromene-3-carboxylate, has been synthesized and characterized using FT-IR, NMR, and ESI-MS.
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Affiliation(s)
- A. B. Abdallah
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura-35516, Egypt
| | - Adel M. Youins
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura-35516, Egypt
| | - Mohamed R. El-Kholany
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura-35516, Egypt
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Li FK, Gong AJ, Qiu LN, Zhang WW, Li JR, Liu Y, Li JD, Gao G, Yuan XT. Determination of trace rare earth elements in fruits by microwave digestion coupled with inductively coupled plasma optical emission spectrometry. Microchem J 2019. [DOI: 10.1016/j.microc.2019.02.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen S, Yan J, Li J, Lu D. Magnetic ZnFe2O4 nanotubes for dispersive micro solid-phase extraction of trace rare earth elements prior to their determination by ICP-MS. Mikrochim Acta 2019; 186:228. [DOI: 10.1007/s00604-019-3342-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 02/27/2019] [Indexed: 12/12/2022]
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