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Yang B, Cai T, Li Z, Guan M, Qiu H. Surface radical chain-transfer reaction in deep eutectic solvents for preparation of silica-grafted stationary phases in hydrophilic interaction chromatography. Talanta 2017; 175:256-263. [DOI: 10.1016/j.talanta.2017.07.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/10/2017] [Accepted: 07/13/2017] [Indexed: 10/19/2022]
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Patrushev YV, Sidelnikov VN, Yudina YS. Monolithic columns with organic sorbent based on poly-1-vinylimidazole for high performance liquid chromatography. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417030190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Qiao X, Zhang L, Zhang N, Wang X, Qin X, Yan H, Liu H. Imidazolium embedded C8 based stationary phase for simultaneous reversed-phase/hydrophilic interaction mixed-mode chromatography. J Chromatogr A 2015; 1400:107-16. [PMID: 25981287 DOI: 10.1016/j.chroma.2015.04.060] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 04/26/2015] [Accepted: 04/28/2015] [Indexed: 11/27/2022]
Abstract
A new imidazolium embedded C8 based stationary phase (SIL-MPS-VOL) was facilely prepared by two steps and characterized by Fourier transform infrared spectrometry and thermogravimetric analysis. Due to the introduction of quaternary imidazolium group to the traditional C8 stationary phase, the developed SIL-MPS-VOL column demonstrated both reversed-phase liquid chromatography (RPLC) and hydrophilic interaction liquid chromatography (HILIC) retention mechanisms. A series of hydrophobic and hydrophilic test samples, including benzene homologues, anilines, positional isomers, nucleosides and nucleotides, were used to evaluate the developed SIL-MPS-VOL stationary phase. A rapid separation time, high separation efficiency and planar selectivity were achieved, compared with the commercially available C8 column. Moreover, the developed stationary phase was further used to detect and separate of melamine in powdered infant formula and high polar component of secondary metabolites of Trichoderma, and improved separation efficiency was achieved, indicating the potential merits of the developed SIL-MPS-VOL stationary phase for simultaneous separation of complex hydrophobic and hydrophilic samples with high selectivity.
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Affiliation(s)
- Xiaoqiang Qiao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China.
| | - Lu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Niu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Xin Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Xinying Qin
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Hongyuan Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Haiyan Liu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
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Yu D, Shen A, Guo Z, Yan Y, Yan J, Jin G, Liang X. A controlled thiol-initiated surface polymerization strategy for the preparation of hydrophilic polymer stationary phases. Chem Commun (Camb) 2015; 51:14778-80. [DOI: 10.1039/c5cc05249a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A controlled thiol-initiated surface polymerization strategy has been successfully developed and employed to prepare hydrophilic polymer stationary phases, which exhibited excellent chromatographic performance and protein non-fouling properties.
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Affiliation(s)
- Dongping Yu
- Key Lab of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Science
- Dalian
- P. R. China
| | - Aijin Shen
- Key Lab of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Science
- Dalian
- P. R. China
| | - Zhimou Guo
- Key Lab of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Science
- Dalian
- P. R. China
| | - Yukun Yan
- Materials Fabrication and Processing Division
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang
- P. R. China
| | - Jingyu Yan
- Key Lab of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Science
- Dalian
- P. R. China
| | - Gaowa Jin
- Key Lab of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Science
- Dalian
- P. R. China
| | - Xinmiao Liang
- Key Lab of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Science
- Dalian
- P. R. China
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Sun M, Feng J, Luo C, Liu X, Jiang S. Quinolinium ionic liquid-modified silica as a novel stationary phase for high-performance liquid chromatography. Anal Bioanal Chem 2014; 406:2651-8. [DOI: 10.1007/s00216-014-7680-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/06/2014] [Accepted: 02/05/2014] [Indexed: 11/30/2022]
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Wang RQ, Ong TT, Tang W, Ng SC. Cationic cyclodextrins chemically-bonded chiral stationary phases for high-performance liquid chromatography. Anal Chim Acta 2012; 718:121-9. [PMID: 22305907 DOI: 10.1016/j.aca.2011.12.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/24/2011] [Indexed: 10/14/2022]
Abstract
Two covalently bonded cationic β-CD chiral stationary phases (CSPs) prepared by graft polymerization of 6(A)-(3-vinylimidazolium)-6-deoxyperphenylcarbamate-β-cyclodextrin chloride or 6(A)-(N,N-allylmethylammonium)-6-deoxyperphenylcarbamoyl-β-cyclodextrin chloride onto silica gel were successfully applied in high-performance liquid chromatography (HPLC). Their enantioseparation capability was examined with 12 racemic pharmaceuticals and 6 carboxylic acids. The results indicated that imidazolium-containing β-CD CSP afforded more favorable enantioseparations than that containing ammonium moiety under normal-phase HPLC. The cationic moiety on β-CD CSPs could form strong hydrogen bonding with analytes in normal-phase liquid chromatography (NPLC) to enhance the analytes' retention and enantioseparations. In reversed-phase liquid chromatography (RPLC), the analytes exhibited their maximum retention when the pH of mobile phase was close to their pK(a) value. Inclusion complexation with CD cavity and columbic/ionic interactions with cationic substituent on the CD rim would afford accentuated retention and enantioseparations of the analytes.
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Affiliation(s)
- Ren-Qi Wang
- Division of Chemical and Biomolecular Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore
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