1
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Further Evaluation of the Base Stability of Hydrophilic Interaction Chromatography Columns Packed with Silica or Ethylene-Bridged Hybrid Particles. SEPARATIONS 2023. [DOI: 10.3390/separations10030175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
One of the fundamental attributes of a liquid chromatography column is its stability when exposed to acidic and basic mobile phases. However, there have been relatively few reports to date on the stability of hydrophilic interaction chromatography (HILIC) columns. Here, we report the results of stability evaluations carried out for HILIC columns packed with ethylene-bridged hybrid or silica particles using accelerated conditions, employing a 100% aqueous pH 11.3 ammonium bicarbonate mobile phase at 70 °C. Under these conditions, the primary mode of column failure was a loss of efficiency due to the formation of voids resulting from the hydrolysis of the particles. We investigated the dependence of stability on the surface area of both unbonded and sulfobetaine-bonded ethylene-bridged hybrid stationary phases. The results show a clear trend of stability increasing as the surface area decreases. Several commercially available HILIC columns that are recommended for use with high-pH mobile phases were also evaluated. The results show times to 50% loss of the initial efficiency ranging from 0.3 to 9.9 h. Columns containing unbonded, sulfobetaine-bonded or diol-bonded ethylene-bridged hybrid stationary phases had longer lifetimes than amino-bonded silica or sulfobetaine-bonded, hybrid-coated, superficially porous silica columns.
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2
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Yaşar Mumin M, Aral H, Sunkur M, Aral T. A New Mixed‐Mode Stationary Phase Derived from [2‐(3,4‐epoxycyclohexyl)ethyl]trimethoxysilane as a Coupling Reagent and Its RPLC/HILIC/IEC Applications. ChemistrySelect 2022. [DOI: 10.1002/slct.202204069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- M. Yaşar Mumin
- Batman University Institute of Graduate Studies Department of Chemistry Batman Turkey
| | - Hayriye Aral
- Batman University Technical Sciences Vocational School Batman Turkey
| | - Murat Sunkur
- Batman University Faculty of Science and Art Department of Chemistry Batman Turkey
| | - Tarık Aral
- Batman University Faculty of Science and Art Department of Chemistry Batman Turkey
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3
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Popov AS, Maksimov GS, Shpigun OA, Chernobrovkina AV. Adsorbents with a Covalently Bonded Polymer Layer for Hydrophilic Interaction Liquid Chromatography. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822090106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Ciogli A, Buonsenso F, Proietti N, Mazzoccanti G, Manetto S, Calcaterra A, De Angelis M, Gasparrini F. Preparation of a high-density vinyl silica gel to anchor cysteine via photo-click reaction and its applications in hydrophilic interaction chromatography. J Chromatogr A 2022; 1675:463173. [DOI: 10.1016/j.chroma.2022.463173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 11/29/2022]
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5
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Chikurova N, Shemiakina A, Shpigun O, Chernobrovkina A. Multicomponent Ugi reaction as a tool for fast and easy preparation of stationary phases for hydrophilic interaction liquid chromatography. Part I: The influence of attachment and spacing of the functional ligand obtained via the Ugi reaction. J Chromatogr A 2022; 1666:462804. [DOI: 10.1016/j.chroma.2022.462804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/31/2021] [Accepted: 01/01/2022] [Indexed: 12/24/2022]
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6
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Chikurova NY, Shemyakina AO, Bryskina DE, Nuriev VN, Komarov AA, Statkus MA, Stavrianidi AN, Chernobrovkina AV. A Novel Adsorbent for Hydrophilic Chromatography Based on Silica Modified by the Ugi Reaction. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821090033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Buonsenso F, Madio S, Ciogli A, Siani G, Pierini M. On-column quantification of amino functionalities bonded to solid porous matrices packed within high performance liquid chromatography columns. J Chromatogr A 2021; 1651:462284. [PMID: 34116269 DOI: 10.1016/j.chroma.2021.462284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/29/2022]
Abstract
Stationary phases (SPs) based on silica matrices functionalized with amino groups linked to their surface through alkyl chains of various length have found remarkable success in performing HILIC separations, showing really effective resolution towards a wide typology of compounds of biological interest, such as carbohydrates, nucleosides, purine and pyrimidine bases. Recently, we developed an operationally simple procedure, named DNBA-M, non-destructive for the analysed SP, designed to quantify the density of basic groups (typically amino groups) chemically bonded to the surface of porous solids. In the present study the DNBA-M procedure has been suitably modified to allow the quantification of any typology of amino groups present on silica matrices packed into HPLC columns. The new approach, named OC-DNBA-M, has been successfully validated through analysis of two HPLC columns packed with aminopropyl-silica matrices. Afterwards, it was also demonstrated as the OC-DNBA-M procedure may allow the effective and in-depth analysis of the structural composition characterizing SPs packed inside HPLC columns, in which amino-groups have been differently and only partially involved in following ureidic functionalizations. It was also proved how the analysed columns can be readily re-employed for the chromatographic applications for which they have been designed, without appreciable deterioration of the respective discrimination abilities.
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Affiliation(s)
- Fabio Buonsenso
- Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, Roma 00185, Italy
| | - Sabrina Madio
- Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, Roma 00185, Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, Roma 00185, Italy
| | - Gabriella Siani
- Dipartimento di Farmacia, Università "G. d'Annunzio", Via dei Vestini 31, Chieti 66013, Italy
| | - Marco Pierini
- Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, Roma 00185, Italy.
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8
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Si T, Liang X, Lu X, Wang L, Wang S, Guo Y. 2D metal-organic framework nanosheets-assembled core-shell composite material as stationary phase for hydrophilic interaction liquid chromatography. Talanta 2021; 222:121603. [DOI: 10.1016/j.talanta.2020.121603] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/14/2020] [Accepted: 08/27/2020] [Indexed: 10/23/2022]
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9
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Si T, Song X, Wang L, Guo Y, Liang X, Wang S. Preparation and evaluation of hydrophobically associating polyacrylamide coated silica composite as high performance liquid chromatographic stationary phase. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104330] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Si T, Wang L, Lu X, Liang X, Wang S, Guo Y. An alternative approach for the preparation of a core–shell bimetallic central metal–organic framework as a hydrophilic interaction liquid chromatography stationary phase. Analyst 2020; 145:3851-3856. [DOI: 10.1039/d0an00304b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new type of core–shell composite material was prepared and applied as a hydrophilic interaction liquid chromatography (HILIC) stationary phase.
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Affiliation(s)
- Tiantian Si
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Licheng Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xiaofeng Lu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xiaojing Liang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Shuai Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Yong Guo
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
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11
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Borges-Muñoz AC, Miller DP, Zurek E, Colón LA. Silanization of superficially porous silica particles with p-aminophenyltrimethoxysilane. Microchem J 2019. [DOI: 10.1016/j.microc.2019.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Ciogli A, Capitani D, Di Iorio N, Crotti S, Bencivenni G, Donzello MP, Villani C. A Silica-Supported Catalyst Containing 9-Amino-9-deoxy-9-epi
-quinine and a Benzoic Acid Derivative for Stereoselective Batch and Flow Heterogeneous Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900148] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco; Sapienza Università di Roma; Piazzale A. Moro, 5 00185 Roma Italy
| | - Donatella Capitani
- Consiglio Nazionale delle Ricerche, CNR; Istituto di Metodologie Chimiche; Lab. di Risonanza Magnetica “Annalaura Segre”; Via Salaria km 29,300 C.P. 10 Monterotondo Stazione Roma Italy
| | - Nicola Di Iorio
- Dipartimento di Chimica Industriale “Toso Montanari”; Alma Mater Studiorum-Università di Bologna; Viale del Risorgimento 4 40136 Bologna Italy
| | - Simone Crotti
- Dipartimento di Chimica Industriale “Toso Montanari”; Alma Mater Studiorum-Università di Bologna; Viale del Risorgimento 4 40136 Bologna Italy
| | - Giorgio Bencivenni
- Dipartimento di Chimica Industriale “Toso Montanari”; Alma Mater Studiorum-Università di Bologna; Viale del Risorgimento 4 40136 Bologna Italy
| | - Maria Pia Donzello
- Dipartimento di Chimica; Sapienza Università di Roma; Piazzale A. Moro, 5 00185 Roma Italy
| | - Claudio Villani
- Dipartimento di Chimica e Tecnologie del Farmaco; Sapienza Università di Roma; Piazzale A. Moro, 5 00185 Roma Italy
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13
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Corradi S, Mazzoccanti G, Ghirga F, Quaglio D, Nevola L, Massera C, Ugozzoli F, Giannini G, Ciogli A, D’Acquarica I. Synthesis of Bromoundecyl Resorc[4]arenes and Applications of the Cone Stereoisomer as Selector for Liquid Chromatography. J Org Chem 2018; 83:7683-7693. [DOI: 10.1021/acs.joc.8b00488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Silvia Corradi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
| | - Giulia Mazzoccanti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
| | - Francesca Ghirga
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Roma, Italy
| | - Deborah Quaglio
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
| | - Laura Nevola
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
- IDP Discovery Pharma, 08028 Barcelona, Spain
| | - Chiara Massera
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma and INSTM UdR Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Franco Ugozzoli
- Dipartimento di Ingegneria e Architettura, Università di Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy
| | - Giuseppe Giannini
- Corporate R&D, Alfasigma S.p.A., Via Pontina km 30,400, 00071 Pomezia, Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
| | - Ilaria D’Acquarica
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
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14
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Cai J, Cheng L, Zhao J, Fu Q, Jin Y, Ke Y, Liang X. A polyacrylamide-based silica stationary phase for the separation of carbohydrates using alcohols as the weak eluent in hydrophilic interaction liquid chromatography. J Chromatogr A 2017; 1524:153-159. [PMID: 29030034 DOI: 10.1016/j.chroma.2017.10.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/20/2017] [Accepted: 10/02/2017] [Indexed: 01/28/2023]
Abstract
A hydrophilic interaction liquid chromatography (HILIC) stationary phase was prepared by a two-step synthesis method, immobilizing polyacrylamide on silica sphere particles. The stationary phase (named PA, 5μm dia) was evaluated using a mixture of carbohydrates in HILIC mode and the column efficiency reached 121,000Nm-1. The retention behavior of carbohydrates on PA stationary phase was investigated with three different organic solvents (acetonitrile, ethanol and methanol) employed as the weak eluent. The strongest hydrophilicity of PA stationary phase was observed in both acetonitrile and methanol as the weak eluent, when compared with another two amide stationary phases. Attributing to its high hydrophilicity, three oligosaccharides (xylooligosaccharide, fructooligosaccharide and chitooligosaccharides) presented good retention on PA stationary phase using alcohols/water as mobile phase. Finally, PA stationary phase was successfully applied for the purification of galactooligosaccharides and saponins of Paris polyphylla. It is feasible to use safer and cheaper alcohols to replace acetonitrile as the weak eluent for green analysis and purification of polar compounds on PA stationary phase.
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Affiliation(s)
- Jianfeng Cai
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Lingping Cheng
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jianchao Zhao
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Qing Fu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yu Jin
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Yanxiong Ke
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Xinmiao Liang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China; Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical, Physics, Chinese Academy of Science, Dalian 116203, PR China
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15
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Matsumoto J, Kiesel BF, Parise RA, Guo J, Taylor S, Huang M, Eiseman JL, Ivy SP, Kunos C, Chu E, Beumer JH. LC-MS/MS assay for the quantitation of the ribonucleotide reductase inhibitor triapine in human plasma. J Pharm Biomed Anal 2017; 146:154-160. [PMID: 28881312 DOI: 10.1016/j.jpba.2017.08.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/18/2017] [Accepted: 08/28/2017] [Indexed: 10/18/2022]
Abstract
The ribonucleotide reductase inhibitor and radiosensitizer triapine (3-aminopyridine-2-carboxaldehyde thiosemicarbazone (3-AP), NSC 663249) is clinically being evaluated via the intravenous (IV) route for the treatment of cervical and vulvar cancer in combination with primary cisplatin chemoradiation. The need for a 2-h infusion and frequent administration of triapine is logistically challenging, prompting us to pursue oral (PO) administration. In support of the clinical trial investigating oral triapine in combination with chemoradiation, we developed and validated a novel LC-MS/MS assay for the quantification of triapine in 50μL human plasma. After protein precipitation, chromatographic separation of the supernatant was achieved with a Shodex ODP2 column and an isocratic acetonitrile-water mobile phase with 10% ammonium acetate. Detection with an ABI 4000 mass spectrometer utilized electrospray positive mode ionization. The assay was linear from 3 to 3,000ng/mL and proved to be accurate (97.1-103.1%) and precise (<7.4% CV), and met the U.S. FDA guidance for bioanalytical method validation. This LC-MS/MS assay will be an essential tool to further define the pharmacokinetics and oral bioavailability of triapine.
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Affiliation(s)
- Julia Matsumoto
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States; School of Pharmaceutical Sciences, Sao Paulo State University, Araraquara, SP, Brazil
| | - Brian F Kiesel
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States; Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Robert A Parise
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States
| | - Jianxia Guo
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States
| | - Sarah Taylor
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Medicine, University of Pittsburgh-Magee Women's Hospital, Pittsburgh, PA, United States
| | - Marilyn Huang
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Medicine, University of Pittsburgh-Magee Women's Hospital, Pittsburgh, PA, United States
| | - Julie L Eiseman
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States; Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - S Percy Ivy
- Investigational Drug Branch, Cancer Therapy Evaluation Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, MD, United States
| | - Charles Kunos
- Investigational Drug Branch, Cancer Therapy Evaluation Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, MD, United States
| | - Edward Chu
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States; Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Jan H Beumer
- Cancer Therapeutics Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States; Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States.
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16
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Aral H, Çelik KS, Altındağ R, Aral T. Synthesis, characterization, and application of a novel multifunctional stationary phase for hydrophilic interaction/reversed phase mixed-mode chromatography. Talanta 2017; 174:703-714. [PMID: 28738646 DOI: 10.1016/j.talanta.2017.07.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/01/2017] [Accepted: 07/01/2017] [Indexed: 11/28/2022]
Abstract
A novel multifunctional stationary phase based on silica gel was synthesised starting from L- isoleucine and 4-phenylbutylamine and evaluated as a hydrophilic interaction/reversed-phase mixed-mode stationary phase for high-performance liquid chromatography (HPLC). The prepared stationary phase was characterized by elemental analysis, infrared spectroscopy (IR), scanning electron microscopy (SEM), Brunauer, Emmett and Teller (BET) and solid-state 13C nuclear magnetic resonance (NMR). The mechanisms involved in the chromatographic separation are multi-interaction, including hydrophobic, π-π, hydrogen-bonding, dipole-dipole and ion-dipole interactions. Based on these interactions, successful separation could be achieved among several aromatic compounds having different polarities under both hydrophilic interaction liquid chromatography (HILIC) and reversed phase (RP) condition. Nucleotides/nucleosides were separated in the HILIC mode. The effects of different separation conditions, such as pH value, mobile-phase content, column temperature, buffer concentration and flow rate, on the separation of nucleotides/nucleosides in HILIC mode were investigated. The seven nucleotides/nucleosides were separated within 22min, while six of them were separated within 10min by isocratic elution. To determine the influence of the new multifunctional stationary phase under the RP condition, a number of moderately and weakly polar and nonpolar compounds, such as 10 substituted anilines and eight substituted phenols were separated successfully under the RP condition within 14 and 15min, respectively. Additionally, nine mixtures of polar/nonpolar test compounds were simultaneously separated within 19min, while seven of them were separated within 12min, under HILIC/RP mixed-mode conditions. Chromatographic parameters, such as the retention factor and peak asymmetry factor, were calculated for all of the analytes, while the theoretical plate number was calculated for analytes separated by isocratic elution. Compared to traditional C18 and commercial HILIC columns, the new stationary phase exhibited both HILIC and RPLC performance, and the scope of analyte separation was thus enlarged.
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Affiliation(s)
- Hayriye Aral
- University of Batman, Faculty of Science and Art, Department of Chemistry, Batman, Turkey
| | - K Serdar Çelik
- University of Batman, Faculty of Science and Art, Department of Chemistry, Batman, Turkey
| | - Ramazan Altındağ
- University of Batman, Faculty of Science and Art, Department of Chemistry, Batman, Turkey
| | - Tarık Aral
- University of Batman, Faculty of Science and Art, Department of Chemistry, Batman, Turkey.
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17
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New urea-modified paper substrate for enhanced analytical performance of negative ion mode paper spray mass spectrometry. Talanta 2017; 166:306-314. [DOI: 10.1016/j.talanta.2017.01.076] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 01/19/2017] [Accepted: 01/26/2017] [Indexed: 12/20/2022]
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18
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Yong T, Wu F, Xiao H, Wan B. Silica modified with a thiourea derivative as a new stationary phase for hydrophilic interaction liquid chromatography. J Sep Sci 2015; 38:3852-3861. [DOI: 10.1002/jssc.201500607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/31/2015] [Accepted: 09/02/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Tian Yong
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
| | - Fan Wu
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
| | - Hongbin Xiao
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
- Beijing University of Chinese Medicine; Beijing China
| | - Boshun Wan
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
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19
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Kotoni D, Ciogli A, Villani C, Bell DS, Gasparrini F. Separation of complex sugar mixtures on a hydrolytically stable bidentate urea-type stationary phase for hydrophilic interaction near ultra high performance liquid chromatography. J Sep Sci 2014; 37:527-35. [DOI: 10.1002/jssc.201301008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 12/09/2013] [Accepted: 12/14/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Dorina Kotoni
- Dipartimento di Chimica e Tecnologie del Farmaco; Sapienza Università di Roma; Roma Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco; Sapienza Università di Roma; Roma Italy
| | - Claudio Villani
- Dipartimento di Chimica e Tecnologie del Farmaco; Sapienza Università di Roma; Roma Italy
| | | | - Francesco Gasparrini
- Dipartimento di Chimica e Tecnologie del Farmaco; Sapienza Università di Roma; Roma Italy
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20
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Allantoin as a solid phase adsorbent for removing endotoxins. J Chromatogr A 2013; 1310:15-20. [DOI: 10.1016/j.chroma.2013.08.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 11/22/2022]
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21
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Preparation, characterization, and application of a new stationary phase containing different kinds of amine groups. Anal Bioanal Chem 2013; 405:8311-8. [DOI: 10.1007/s00216-013-7243-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 06/16/2013] [Accepted: 07/10/2013] [Indexed: 12/19/2022]
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22
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Ruan J, Zuo X, Lang Q, Zeng Z, Li C. Preparation of a dibenzylated 1,4-diazacyclohexane-derived strong anion-exchange stationary phase. J Chromatogr A 2013; 1297:77-84. [PMID: 23721810 DOI: 10.1016/j.chroma.2013.04.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 04/02/2013] [Accepted: 04/16/2013] [Indexed: 10/26/2022]
Abstract
This paper reports the preparation of a novel, silica-based, strong anion-exchange stationary phase from a 1,4-diazacyclohexane derivative. To prepare the difunctional strong anion-exchange stationary phase, activated silica beads were first bonded with 3-chloropropyltriethoxysilane and then reacted with 1-methylpiperazine followed by benzyl chloride. The silica beads, the strong anion-exchange stationary phase and its precusors were instrumentally characterized. Aromatic acids were separated with non-aqueous anion-exchange chromatography. After elution with eluant prepared in mixed solvents of water and methanol, the resulting 1,4-diazacyclohexane-derived, difunctional, strong anion-exchange stationary phase exhibited good separation and selectivity for the aromatic acids investigated. The effects of eluant pH, eluant ion concentration and solvent composites on the separations were investigated. Organic acids with different substituents were eluted in order of decreasing dissociation coefficients, with no observable peak shape differences.
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Affiliation(s)
- Juxiang Ruan
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, China.
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Kotoni D, Villani C, Bell DS, Capitani D, Campiglia P, Gasparrini F. Bidentate urea-based chiral selectors for enantioselective high performance liquid chromatography: Synthesis and evaluation of “Crab-like” stationary phases. J Chromatogr A 2013; 1297:157-67. [DOI: 10.1016/j.chroma.2013.04.083] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 04/24/2013] [Accepted: 04/29/2013] [Indexed: 11/15/2022]
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24
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Tian M, Row KH. Separation of Glucose and Bioethanol in Biomass with Current Methods and Sorbents. J Chromatogr Sci 2013; 51:819-24. [DOI: 10.1093/chromsci/bmt044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Combination of two different stationary phases for on-line pre-concentration and separation of basic drugs by using nano-liquid chromatography. J Chromatogr A 2013; 1285:118-23. [DOI: 10.1016/j.chroma.2013.02.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 02/06/2013] [Accepted: 02/09/2013] [Indexed: 11/20/2022]
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Chester TL. Recent Developments in High-Performance Liquid Chromatography Stationary Phases. Anal Chem 2012; 85:579-89. [DOI: 10.1021/ac303180y] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Thomas L. Chester
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati,
Ohio 45221-0172, United States
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